Merge branch 'feature/compress-image' of...

Merge branch 'feature/compress-image' of github.com:RocketChat/Rocket.Chat.Android into feature/compress-image

app/src/main/java/chat/rocket/android/chatroom/adapter/ChatRoomAdapter.kt

 package chat.rocket.android.chatroom.adapter
 
+import android.app.AlertDialog
+import android.content.Context
 import androidx.recyclerview.widget.RecyclerView
 import android.view.MenuItem
 import android.view.ViewGroup
@@ -18,7 +20,8 @@ class ChatRoomAdapter(
     private val roomName: String? = null,
     private val presenter: ChatRoomPresenter? = null,
     private val enableActions: Boolean = true,
-    private val reactionListener: EmojiReactionListener? = null
+    private val reactionListener: EmojiReactionListener? = null,
+    private val context: Context? = null
 ) : RecyclerView.Adapter<BaseViewHolder<*>>() {
     private val dataSet = ArrayList<BaseUiModel<*>>()
 
@@ -233,7 +236,16 @@ class ChatRoomAdapter(
                             presenter?.unpinMessage(id)
                         }
                     }
-                    R.id.action_message_delete -> presenter?.deleteMessage(roomId, id)
+                    R.id.action_message_delete -> {
+                        context?.let {
+                            val builder = AlertDialog.Builder(it)
+                            builder.setTitle(it.getString(R.string.msg_delete_message))
+                                    .setMessage(it.getString(R.string.msg_delete_description))
+                                    .setPositiveButton(it.getString(R.string.msg_ok)) { _, _ -> presenter?.deleteMessage(roomId, id) }
+                                    .setNegativeButton(it.getString(R.string.msg_cancel)) { _, _ ->  }
+                                    .show()
+                        }
+                    }
                     R.id.action_menu_msg_react -> presenter?.showReactions(id)
                     else -> TODO("Not implemented")
                 }

app/src/main/java/chat/rocket/android/chatroom/ui/ChatRoomFragment.kt

@@ -257,7 +257,8 @@ class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardListener, EmojiR
                     chatRoomType,
                     chatRoomName,
                     presenter,
-                    reactionListener = this@ChatRoomFragment
+                    reactionListener = this@ChatRoomFragment,
+                    context = context
                 )
                 recycler_view.adapter = adapter
                 if (dataSet.size >= 30) {
@@ -407,7 +408,6 @@ class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardListener, EmojiR
     override fun showNewMessage(message: List<BaseUiModel<*>>) {
         ui {
             adapter.prependData(message)
-            recycler_view.scrollToPosition(0)
             verticalScrollOffset.set(0)
             empty_chat_view.isVisible = adapter.itemCount == 0
         }

app/src/main/java/chat/rocket/android/chatrooms/ui/ChatRoomsFragment.kt

@@ -239,8 +239,7 @@ class ChatRoomsFragment : Fragment(), ChatRoomsView {
         }
     }
 
-    override suspend fun updateChatRooms(newDataSet: List<ChatRoom>) {
-    }
+    override suspend fun updateChatRooms(newDataSet: List<ChatRoom>) {}
 
     override fun showNoChatRoomsToDisplay() {
         ui { text_no_data_to_display.setVisible(true) }

app/src/main/java/chat/rocket/android/createchannel/di/CreateChannelModule.kt

+package chat.rocket.android.createchannel.di
+
+import androidx.lifecycle.LifecycleOwner
+import chat.rocket.android.createchannel.presentation.CreateChannelView
+import chat.rocket.android.createchannel.ui.CreateChannelFragment
+import chat.rocket.android.dagger.scope.PerFragment
+import dagger.Module
+import dagger.Provides
+
+@Module
+class CreateChannelModule {
+
+    @Provides
+    @PerFragment
+    fun createChannelView(fragment: CreateChannelFragment): CreateChannelView {
+        return fragment
+    }
+
+    @Provides
+    @PerFragment
+    fun provideLifecycleOwner(fragment: CreateChannelFragment): LifecycleOwner {
+        return fragment
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/createchannel/di/CreateChannelProvider.kt

+package chat.rocket.android.createchannel.di
+
+import chat.rocket.android.createchannel.ui.CreateChannelFragment
+import chat.rocket.android.dagger.scope.PerFragment
+import dagger.Module
+import dagger.android.ContributesAndroidInjector
+
+@Module
+abstract class CreateChannelProvider {
+
+    @ContributesAndroidInjector(modules = [CreateChannelModule::class])
+    @PerFragment
+    abstract fun provideCreateChannelFragment(): CreateChannelFragment
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/createchannel/presentation/CreateChannelPresenter.kt

+package chat.rocket.android.createchannel.presentation
+
+import chat.rocket.android.core.lifecycle.CancelStrategy
+import chat.rocket.android.main.presentation.MainNavigator
+import chat.rocket.android.members.uimodel.MemberUiModelMapper
+import chat.rocket.android.server.domain.GetCurrentServerInteractor
+import chat.rocket.android.server.infraestructure.RocketChatClientFactory
+import chat.rocket.android.util.extensions.launchUI
+import chat.rocket.common.RocketChatException
+import chat.rocket.common.model.RoomType
+import chat.rocket.common.util.ifNull
+import chat.rocket.core.RocketChatClient
+import chat.rocket.core.internal.rest.createChannel
+import chat.rocket.core.internal.rest.spotlight
+import javax.inject.Inject
+
+class CreateChannelPresenter @Inject constructor(
+    private val view: CreateChannelView,
+    private val strategy: CancelStrategy,
+    private val mapper: MemberUiModelMapper,
+    private val navigator: MainNavigator,
+    val serverInteractor: GetCurrentServerInteractor,
+    val factory: RocketChatClientFactory
+) {
+    private val client: RocketChatClient = factory.create(serverInteractor.get()!!)
+
+    fun createChannel(
+        roomType: RoomType,
+        channelName: String,
+        usersList: List<String>,
+        readOnly: Boolean
+    ) {
+        launchUI(strategy) {
+            view.showLoading()
+            view.disableUserInput()
+            try {
+                client.createChannel(roomType, channelName, usersList, readOnly)
+                view.prepareToShowChatList()
+                view.showChannelCreatedSuccessfullyMessage()
+                toChatList()
+            } catch (exception: RocketChatException) {
+                exception.message?.let {
+                    view.showMessage(it)
+                }.ifNull {
+                    view.showGenericErrorMessage()
+                }
+            } finally {
+                view.hideLoading()
+                view.enableUserInput()
+            }
+        }
+    }
+
+    fun searchUser(query: String) {
+        launchUI(strategy) {
+            view.showSuggestionViewInProgress()
+            try {
+                val users = client.spotlight(query).users
+                if (users.isEmpty()) {
+                    view.showNoUserSuggestion()
+                } else {
+                    view.showUserSuggestion(mapper.mapToUiModelList(users))
+                }
+            } catch (ex: RocketChatException) {
+                ex.message?.let {
+                    view.showMessage(it)
+                }.ifNull {
+                    view.showGenericErrorMessage()
+                }
+            } finally {
+                view.hideSuggestionViewInProgress()
+            }
+        }
+    }
+
+    fun toChatList() = navigator.toChatList()
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/createchannel/presentation/CreateChannelView.kt

+package chat.rocket.android.createchannel.presentation
+
+import chat.rocket.android.core.behaviours.LoadingView
+import chat.rocket.android.core.behaviours.MessageView
+import chat.rocket.android.members.uimodel.MemberUiModel
+
+interface CreateChannelView : LoadingView, MessageView {
+
+    /**
+     * Shows the server's users suggestion (on the basis of the user typing - the query).
+     *
+     * @param dataSet The list of server's users to show.
+     */
+    fun showUserSuggestion(dataSet: List<MemberUiModel>)
+
+    /**
+     * Shows no server's users suggestion.
+     */
+    fun showNoUserSuggestion()
+
+    /**
+     * Shows the SuggestionView in progress.
+     */
+    fun showSuggestionViewInProgress()
+
+    /**
+     * Hides the progress shown in the SuggestionView.
+     */
+    fun hideSuggestionViewInProgress()
+
+    /**
+     * Shows the navigation drawer with the chat item checked before showing the chat list.
+     * This function is invoked after successfully created the channel.
+     */
+    fun prepareToShowChatList()
+
+    /**
+     * Shows a message that a channel was successfully created.
+     */
+    fun showChannelCreatedSuccessfullyMessage()
+
+    /**
+     * Enables the user input.
+     */
+    fun enableUserInput()
+
+    /**
+     * Disables the user input.
+     */
+    fun disableUserInput()
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/createchannel/ui/CreateChannelFragment.kt

+package chat.rocket.android.createchannel.ui
+
+import android.os.Bundle
+import android.view.*
+import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.view.ActionMode
+import androidx.core.view.isVisible
+import androidx.core.view.postDelayed
+import androidx.fragment.app.Fragment
+import androidx.recyclerview.widget.LinearLayoutManager
+import chat.rocket.android.R
+import chat.rocket.android.createchannel.presentation.CreateChannelPresenter
+import chat.rocket.android.createchannel.presentation.CreateChannelView
+import chat.rocket.android.main.ui.MainActivity
+import chat.rocket.android.members.adapter.MembersAdapter
+import chat.rocket.android.members.uimodel.MemberUiModel
+import chat.rocket.android.util.extensions.asObservable
+import chat.rocket.android.util.extensions.inflate
+import chat.rocket.android.util.extensions.showToast
+import chat.rocket.android.util.extensions.ui
+import chat.rocket.android.widget.DividerItemDecoration
+import chat.rocket.common.model.RoomType
+import chat.rocket.common.model.roomTypeOf
+import com.google.android.material.chip.Chip
+import dagger.android.support.AndroidSupportInjection
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.disposables.CompositeDisposable
+import kotlinx.android.synthetic.main.fragment_create_channel.*
+import java.util.concurrent.TimeUnit
+import javax.inject.Inject
+
+class CreateChannelFragment : Fragment(), CreateChannelView, ActionMode.Callback {
+    @Inject
+    lateinit var createChannelPresenter: CreateChannelPresenter
+    private var actionMode: ActionMode? = null
+    private val adapter: MembersAdapter = MembersAdapter {
+        if (it.username != null) {
+            processSelectedMember(it.username)
+        }
+    }
+    private val compositeDisposable = CompositeDisposable()
+    private var channelType: String = RoomType.CHANNEL
+    private var isChannelReadOnly: Boolean = false
+    private var memberList = arrayListOf<String>()
+
+    companion object {
+        fun newInstance() = CreateChannelFragment()
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        AndroidSupportInjection.inject(this)
+        super.onCreate(savedInstanceState)
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? = container?.inflate(R.layout.fragment_create_channel)
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        setupToolBar()
+        setupViewListeners()
+        setupRecyclerView()
+        subscribeEditTexts()
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        unsubscribeEditTexts()
+    }
+
+    override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
+        mode.menuInflater.inflate(R.menu.create_channel, menu)
+        mode.title = getString(R.string.title_create_channel)
+        return true
+    }
+
+    override fun onPrepareActionMode(mode: ActionMode, menu: Menu): Boolean = false
+
+    override fun onActionItemClicked(mode: ActionMode, menuItem: MenuItem): Boolean {
+        return when (menuItem.itemId) {
+            R.id.action_create_channel -> {
+                createChannelPresenter.createChannel(
+                    roomTypeOf(channelType),
+                    text_channel_name.text.toString(),
+                    memberList,
+                    isChannelReadOnly
+                )
+                mode.finish()
+                true
+            }
+            else -> {
+                false
+            }
+        }
+    }
+
+    override fun onDestroyActionMode(mode: ActionMode) {
+        actionMode = null
+    }
+
+    override fun showLoading() {
+        ui {
+            view_loading.isVisible = true
+        }
+    }
+
+    override fun hideLoading() {
+        ui {
+            view_loading.isVisible = false
+        }
+    }
+
+    override fun showMessage(resId: Int) {
+        ui {
+            showToast(resId)
+        }
+    }
+
+    override fun showMessage(message: String) {
+        ui {
+            showToast(message)
+        }
+    }
+
+    override fun showGenericErrorMessage() {
+        showMessage(getString(R.string.msg_generic_error))
+    }
+
+    override fun showUserSuggestion(dataSet: List<MemberUiModel>) {
+        adapter.clearData()
+        adapter.prependData(dataSet)
+        text_member_not_found.isVisible = false
+        recycler_view.isVisible = true
+        view_member_suggestion.isVisible = true
+    }
+
+    override fun showNoUserSuggestion() {
+        recycler_view.isVisible = false
+        text_member_not_found.isVisible = true
+        view_member_suggestion.isVisible = true
+    }
+
+    override fun showSuggestionViewInProgress() {
+        recycler_view.isVisible = false
+        text_member_not_found.isVisible = false
+        view_member_suggestion_loading.isVisible = true
+        view_member_suggestion.isVisible = true
+    }
+
+    override fun hideSuggestionViewInProgress() {
+        view_member_suggestion_loading.isVisible = false
+    }
+
+    override fun prepareToShowChatList() {
+        with(activity as MainActivity) {
+            setCheckedNavDrawerItem(R.id.action_chat_rooms)
+            openDrawer()
+            getDrawerLayout().postDelayed(1000) {
+                closeDrawer()
+                createChannelPresenter.toChatList()
+            }
+        }
+    }
+
+    override fun showChannelCreatedSuccessfullyMessage() {
+        showMessage(getString(R.string.msg_channel_created_successfully))
+    }
+
+    override fun enableUserInput() {
+        text_channel_name.isEnabled = true
+        text_invite_members.isEnabled = true
+    }
+
+    override fun disableUserInput() {
+        text_channel_name.isEnabled = false
+        text_invite_members.isEnabled = false
+    }
+
+    private fun setupToolBar() {
+        (activity as AppCompatActivity?)?.supportActionBar?.title =
+                getString(R.string.title_create_channel)
+    }
+
+    private fun setupViewListeners() {
+        switch_channel_type.setOnCheckedChangeListener { _, isChecked ->
+            if (isChecked) {
+                text_channel_type.text = getString(R.string.msg_private_channel)
+                text_channel_type_description.text =
+                        getString(R.string.msg_private_channel_description)
+                image_channel_icon.setImageDrawable(
+                    context?.getDrawable(R.drawable.ic_lock_black_12_dp)
+                )
+                channelType = RoomType.PRIVATE_GROUP
+            } else {
+                text_channel_type.text = getString(R.string.msg_public_channel)
+                text_channel_type_description.text =
+                        getString(R.string.msg_public_channel_description)
+                image_channel_icon.setImageDrawable(
+                    context?.getDrawable(R.drawable.ic_hashtag_black_12dp)
+                )
+                channelType = RoomType.CHANNEL
+            }
+        }
+
+        switch_read_only.setOnCheckedChangeListener { _, isChecked ->
+            isChannelReadOnly = isChecked
+        }
+    }
+
+    private fun setupRecyclerView() {
+        ui {
+            recycler_view.layoutManager =
+                    LinearLayoutManager(context, LinearLayoutManager.VERTICAL, false)
+            recycler_view.addItemDecoration(DividerItemDecoration(it))
+            recycler_view.adapter = adapter
+
+        }
+    }
+
+    private fun subscribeEditTexts() {
+        val channelNameDisposable = text_channel_name.asObservable()
+            .subscribe {
+                if (it.isNotBlank()) {
+                    startActionMode()
+                } else {
+                    finishActionMode()
+                }
+            }
+
+        val inviteMembersDisposable = text_invite_members.asObservable()
+            .debounce(500, TimeUnit.MILLISECONDS, AndroidSchedulers.mainThread())
+            .filter { t -> t.isNotBlank() }
+            .subscribe {
+                if (it.length >= 3) {
+                    createChannelPresenter.searchUser(it.toString())
+                } else {
+                    view_member_suggestion.isVisible = false
+                }
+            }
+
+        compositeDisposable.addAll(channelNameDisposable, inviteMembersDisposable)
+    }
+
+    private fun unsubscribeEditTexts() {
+        compositeDisposable.dispose()
+    }
+
+    private fun startActionMode() {
+        if (actionMode == null) {
+            actionMode = (activity as AppCompatActivity).startSupportActionMode(this)
+        }
+    }
+
+    private fun finishActionMode() {
+        actionMode?.finish()
+    }
+
+    private fun processSelectedMember(username: String) {
+        if (memberList.contains(username)) {
+            showMessage(getString(R.string.msg_member_already_added))
+        } else {
+            view_member_suggestion.isVisible = false
+            text_invite_members.setText("")
+            addMember(username)
+            addChip(username)
+            chip_group_member.isVisible = true
+        }
+    }
+
+    private fun addMember(username: String) {
+        memberList.add(username)
+    }
+
+    private fun removeMember(username: String) {
+        memberList.remove(username)
+    }
+
+    private fun addChip(chipText: String) {
+        val chip = Chip(context)
+        chip.chipText = chipText
+        chip.isCloseIconEnabled = true
+        chip.setChipBackgroundColorResource(R.color.icon_grey)
+        setupChipOnCloseIconClickListener(chip)
+        chip_group_member.addView(chip)
+    }
+
+    private fun setupChipOnCloseIconClickListener(chip: Chip) {
+        chip.setOnCloseIconClickListener {
+            removeChip(it)
+            removeMember((it as Chip).chipText.toString())
+            // whenever we remove a chip we should process the chip group visibility.
+            processChipGroupVisibility()
+        }
+    }
+
+    private fun removeChip(chip: View) {
+        chip_group_member.removeView(chip)
+    }
+
+    private fun processChipGroupVisibility() {
+        chip_group_member.isVisible = memberList.isNotEmpty()
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/dagger/module/ActivityBuilder.kt

@@ -13,6 +13,7 @@ import chat.rocket.android.chatroom.di.ChatRoomModule
 import chat.rocket.android.chatroom.di.FavoriteMessagesFragmentProvider
 import chat.rocket.android.chatroom.ui.ChatRoomActivity
 import chat.rocket.android.chatrooms.di.ChatRoomsFragmentProvider
+import chat.rocket.android.createchannel.di.CreateChannelProvider
 import chat.rocket.android.dagger.scope.PerActivity
 import chat.rocket.android.files.di.FilesFragmentProvider
 import chat.rocket.android.main.di.MainModule
@@ -22,6 +23,7 @@ import chat.rocket.android.pinnedmessages.di.PinnedMessagesFragmentProvider
 import chat.rocket.android.profile.di.ProfileFragmentProvider
 import chat.rocket.android.server.di.ChangeServerModule
 import chat.rocket.android.server.ui.ChangeServerActivity
+import chat.rocket.android.settings.di.SettingsFragmentProvider
 import chat.rocket.android.settings.password.di.PasswordFragmentProvider
 import chat.rocket.android.settings.password.ui.PasswordActivity
 import dagger.Module
@@ -47,7 +49,9 @@ abstract class ActivityBuilder {
     @ContributesAndroidInjector(
         modules = [MainModule::class,
             ChatRoomsFragmentProvider::class,
-            ProfileFragmentProvider::class
+            CreateChannelProvider::class,
+            ProfileFragmentProvider::class,
+            SettingsFragmentProvider::class
         ]
     )
     abstract fun bindMainActivity(): MainActivity

app/src/main/java/chat/rocket/android/main/presentation/MainNavigator.kt

@@ -4,6 +4,7 @@ import chat.rocket.android.R
 import chat.rocket.android.authentication.ui.newServerIntent
 import chat.rocket.android.chatroom.ui.chatRoomIntent
 import chat.rocket.android.chatrooms.ui.ChatRoomsFragment
+import chat.rocket.android.createchannel.ui.CreateChannelFragment
 import chat.rocket.android.main.ui.MainActivity
 import chat.rocket.android.profile.ui.ProfileFragment
 import chat.rocket.android.server.ui.changeServerIntent
@@ -18,6 +19,12 @@ class MainNavigator(internal val activity: MainActivity) {
         }
     }
 
+    fun toCreateChannel() {
+        activity.addFragment("CreateChannelFragment", R.id.fragment_container) {
+            CreateChannelFragment.newInstance()
+        }
+    }
+
     fun toUserProfile() {
         activity.addFragment("ProfileFragment", R.id.fragment_container) {
             ProfileFragment.newInstance()
@@ -30,15 +37,26 @@ class MainNavigator(internal val activity: MainActivity) {
         }
     }
 
-    fun toChatRoom(chatRoomId: String,
-                   chatRoomName: String,
-                   chatRoomType: String,
-                   isChatRoomReadOnly: Boolean,
-                   chatRoomLastSeen: Long,
-                   isChatRoomSubscribed: Boolean,
-                   isChatRoomCreator: Boolean) {
-        activity.startActivity(activity.chatRoomIntent(chatRoomId, chatRoomName, chatRoomType,
-                isChatRoomReadOnly, chatRoomLastSeen, isChatRoomSubscribed, isChatRoomCreator))
+    fun toChatRoom(
+        chatRoomId: String,
+        chatRoomName: String,
+        chatRoomType: String,
+        isChatRoomReadOnly: Boolean,
+        chatRoomLastSeen: Long,
+        isChatRoomSubscribed: Boolean,
+        isChatRoomCreator: Boolean
+    ) {
+        activity.startActivity(
+            activity.chatRoomIntent(
+                chatRoomId,
+                chatRoomName,
+                chatRoomType,
+                isChatRoomReadOnly,
+                chatRoomLastSeen,
+                isChatRoomSubscribed,
+                isChatRoomCreator
+            )
+        )
         activity.overridePendingTransition(R.anim.open_enter, R.anim.open_exit)
     }
 

app/src/main/java/chat/rocket/android/main/presentation/MainPresenter.kt

@@ -55,6 +55,8 @@ class MainPresenter @Inject constructor(
 
     fun toSettings() = navigator.toSettings()
 
+    fun toCreateChannel() = navigator.toCreateChannel()
+
     fun loadCurrentInfo() {
         checkServerInfo(currentServer)
         launchUI(strategy) {

app/src/main/java/chat/rocket/android/main/ui/MainActivity.kt

@@ -10,6 +10,8 @@ import androidx.recyclerview.widget.LinearLayoutManager
 import android.view.Gravity
 import android.view.MenuItem
 import android.view.View
+import androidx.annotation.IdRes
+import androidx.drawerlayout.widget.DrawerLayout
 import chat.rocket.android.BuildConfig
 import chat.rocket.android.R
 import chat.rocket.android.main.adapter.AccountsAdapter
@@ -185,14 +187,14 @@ class MainActivity : AppCompatActivity(), MainView, HasActivityInjector,
         setSupportActionBar(toolbar)
         toolbar.setNavigationIcon(R.drawable.ic_menu_white_24dp)
         toolbar.setNavigationOnClickListener {
-            drawer_layout.openDrawer(Gravity.START)
+            openDrawer()
         }
     }
 
     private fun setupNavigationView() {
         view_navigation.setNavigationItemSelectedListener { menuItem ->
             menuItem.isChecked = true
-            drawer_layout.closeDrawer(Gravity.START)
+            closeDrawer()
             onNavDrawerItemSelected(menuItem)
             true
         }
@@ -206,6 +208,9 @@ class MainActivity : AppCompatActivity(), MainView, HasActivityInjector,
             R.id.action_profile -> {
                 presenter.toUserProfile()
             }
+            R.id.action_channel -> {
+                presenter.toCreateChannel()
+            }
             R.id.action_settings -> {
                 presenter.toSettings()
             }
@@ -243,9 +248,25 @@ class MainActivity : AppCompatActivity(), MainView, HasActivityInjector,
         }
 
         header.image_avatar.setOnClickListener {
-            view_navigation.menu.findItem(R.id.action_profile).isChecked = true
+            view_navigation.menu.findItem(R.id.action_update_profile).isChecked = true
             presenter.toUserProfile()
             drawer_layout.closeDrawer(Gravity.START)
         }
     }
+
+    fun getDrawerLayout(): DrawerLayout {
+        return drawer_layout
+    }
+
+    fun openDrawer() {
+        drawer_layout.openDrawer(Gravity.START)
+    }
+
+    fun closeDrawer() {
+        drawer_layout.closeDrawer(Gravity.START)
+    }
+
+    fun setCheckedNavDrawerItem(@IdRes item: Int) {
+        view_navigation.setCheckedItem(item)
+    }
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/members/adapter/MembersAdapter.kt

 package chat.rocket.android.members.adapter
 
-import androidx.recyclerview.widget.RecyclerView
 import android.view.View
 import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
 import chat.rocket.android.R
 import chat.rocket.android.members.uimodel.MemberUiModel
 import chat.rocket.android.util.extensions.content
@@ -10,15 +10,23 @@ import chat.rocket.android.util.extensions.inflate
 import kotlinx.android.synthetic.main.avatar.view.*
 import kotlinx.android.synthetic.main.item_member.view.*
 
-class MembersAdapter(private val listener: (MemberUiModel) -> Unit) : RecyclerView.Adapter<MembersAdapter.ViewHolder>() {
+class MembersAdapter(private val listener: (MemberUiModel) -> Unit) :
+    RecyclerView.Adapter<MembersAdapter.ViewHolder>() {
     private var dataSet: List<MemberUiModel> = ArrayList()
 
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MembersAdapter.ViewHolder = ViewHolder(parent.inflate(R.layout.item_member))
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MembersAdapter.ViewHolder =
+        ViewHolder(parent.inflate(R.layout.item_member))
 
-    override fun onBindViewHolder(holder: MembersAdapter.ViewHolder, position: Int) = holder.bind(dataSet[position], listener)
+    override fun onBindViewHolder(holder: MembersAdapter.ViewHolder, position: Int) =
+        holder.bind(dataSet[position], listener)
 
     override fun getItemCount(): Int = dataSet.size
 
+    fun clearData() {
+        dataSet = emptyList()
+        notifyDataSetChanged()
+    }
+
     fun prependData(dataSet: List<MemberUiModel>) {
         this.dataSet = dataSet
         notifyItemRangeInserted(0, dataSet.size)
@@ -35,7 +43,6 @@ class MembersAdapter(private val listener: (MemberUiModel) -> Unit) : RecyclerVi
         fun bind(memberUiModel: MemberUiModel, listener: (MemberUiModel) -> Unit) = with(itemView) {
             image_avatar.setImageURI(memberUiModel.avatarUri)
             text_member.content = memberUiModel.displayName
-
             setOnClickListener { listener(memberUiModel) }
         }
     }

app/src/main/java/chat/rocket/android/members/di/MembersFragmentProvider.kt

 package chat.rocket.android.members.di
 
-import chat.rocket.android.dagger.scope.PerFragment
 import chat.rocket.android.members.ui.MembersFragment
+import chat.rocket.android.dagger.scope.PerFragment
 import dagger.Module
 import dagger.android.ContributesAndroidInjector
 

app/src/main/java/chat/rocket/android/members/uimodel/MemberUiModel.kt

@@ -5,7 +5,11 @@ import chat.rocket.android.util.extensions.avatarUrl
 import chat.rocket.common.model.User
 import chat.rocket.core.model.Value
 
-class MemberUiModel(private val member: User, private val settings: Map<String, Value<Any>>, private val baseUrl: String?) {
+class MemberUiModel(
+    private val member: User,
+    private val settings: Map<String, Value<Any>>,
+    private val baseUrl: String?
+) {
     val avatarUri: String?
     val displayName: String
     val realName: String?

app/src/main/java/chat/rocket/android/profile/ui/ProfileFragment.kt

@@ -13,20 +13,21 @@ import chat.rocket.android.profile.presentation.ProfilePresenter
 import chat.rocket.android.profile.presentation.ProfileView
 import chat.rocket.android.util.extensions.*
 import dagger.android.support.AndroidSupportInjection
-import io.reactivex.disposables.CompositeDisposable
+import io.reactivex.disposables.Disposable
 import io.reactivex.rxkotlin.Observables
 import kotlinx.android.synthetic.main.avatar_profile.*
 import kotlinx.android.synthetic.main.fragment_profile.*
 import javax.inject.Inject
 
 class ProfileFragment : Fragment(), ProfileView, ActionMode.Callback {
-    @Inject lateinit var presenter: ProfilePresenter
+    @Inject
+    lateinit var presenter: ProfilePresenter
     private lateinit var currentName: String
     private lateinit var currentUsername: String
     private lateinit var currentEmail: String
     private lateinit var currentAvatar: String
     private var actionMode: ActionMode? = null
-    private val disposables = CompositeDisposable()
+    private lateinit var editTextsDisposable: Disposable
 
     companion object {
         fun newInstance() = ProfileFragment()
@@ -37,7 +38,11 @@ class ProfileFragment : Fragment(), ProfileView, ActionMode.Callback {
         super.onCreate(savedInstanceState)
     }
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? = container?.inflate(R.layout.fragment_profile)
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? = container?.inflate(R.layout.fragment_profile)
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
@@ -51,8 +56,8 @@ class ProfileFragment : Fragment(), ProfileView, ActionMode.Callback {
     }
 
     override fun onDestroyView() {
-        disposables.clear()
         super.onDestroyView()
+        unsubscribeEditTexts()
     }
 
     override fun showProfile(avatarUrl: String, name: String, username: String, email: String?) {
@@ -71,7 +76,7 @@ class ProfileFragment : Fragment(), ProfileView, ActionMode.Callback {
 
             profile_container.setVisible(true)
 
-            listenToChanges()
+            subscribeEditTexts()
         }
     }
 
@@ -119,8 +124,13 @@ class ProfileFragment : Fragment(), ProfileView, ActionMode.Callback {
 
     override fun onActionItemClicked(mode: ActionMode, menuItem: MenuItem): Boolean {
         return when (menuItem.itemId) {
-            R.id.action_profile -> {
-                presenter.updateUserProfile(text_email.textContent, text_name.textContent, text_username.textContent, text_avatar_url.textContent)
+            R.id.action_update_profile -> {
+                presenter.updateUserProfile(
+                    text_email.textContent,
+                    text_name.textContent,
+                    text_username.textContent,
+                    text_avatar_url.textContent
+                )
                 mode.finish()
                 true
             }
@@ -135,28 +145,36 @@ class ProfileFragment : Fragment(), ProfileView, ActionMode.Callback {
     }
 
     private fun setupToolbar() {
-        (activity as AppCompatActivity?)?.supportActionBar?.title = getString(R.string.title_profile)
+        (activity as AppCompatActivity?)?.supportActionBar?.title =
+                getString(R.string.title_profile)
     }
 
     private fun tintEditTextDrawableStart() {
         (activity as MainActivity).apply {
-            val personDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_person_black_24dp, this)
+            val personDrawable =
+                DrawableHelper.getDrawableFromId(R.drawable.ic_person_black_24dp, this)
             val atDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_at_black_24dp, this)
-            val emailDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_email_black_24dp, this)
+            val emailDrawable =
+                DrawableHelper.getDrawableFromId(R.drawable.ic_email_black_24dp, this)
             val linkDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_link_black_24dp, this)
 
             val drawables = arrayOf(personDrawable, atDrawable, emailDrawable, linkDrawable)
             DrawableHelper.wrapDrawables(drawables)
             DrawableHelper.tintDrawables(drawables, this, R.color.colorDrawableTintGrey)
-            DrawableHelper.compoundDrawables(arrayOf(text_name, text_username, text_email, text_avatar_url), drawables)
+            DrawableHelper.compoundDrawables(
+                arrayOf(text_name, text_username, text_email, text_avatar_url),
+                drawables
+            )
         }
     }
 
-    private fun listenToChanges() {
-        disposables.add(Observables.combineLatest(text_name.asObservable(),
-                text_username.asObservable(),
-                text_email.asObservable(),
-                text_avatar_url.asObservable()) { text_name, text_username, text_email, text_avatar_url ->
+    private fun subscribeEditTexts() {
+        editTextsDisposable = Observables.combineLatest(
+            text_name.asObservable(),
+            text_username.asObservable(),
+            text_email.asObservable(),
+            text_avatar_url.asObservable()
+        ) { text_name, text_username, text_email, text_avatar_url ->
             return@combineLatest (text_name.toString() != currentName ||
                     text_username.toString() != currentUsername ||
                     text_email.toString() != currentEmail ||
@@ -167,7 +185,11 @@ class ProfileFragment : Fragment(), ProfileView, ActionMode.Callback {
             } else {
                 finishActionMode()
             }
-        })
+        }
+    }
+
+    private fun unsubscribeEditTexts() {
+        editTextsDisposable.dispose()
     }
 
     private fun startActionMode() {

app/src/main/java/chat/rocket/android/settings/di/SettingsFragmentModule.kt

@@ -11,6 +11,7 @@ import kotlinx.coroutines.experimental.Job
 
 @Module
 class SettingsFragmentModule {
+
     @Provides
     @PerFragment
     fun settingsView(frag: SettingsFragment): SettingsView {

app/src/main/java/chat/rocket/android/settings/di/SettingsFragmentProvider.kt

@@ -6,6 +6,7 @@ import dagger.android.ContributesAndroidInjector
 
 @Module
 abstract class SettingsFragmentProvider {
+
     @ContributesAndroidInjector(modules = [SettingsFragmentModule::class])
     abstract fun provideSettingsFragment(): SettingsFragment
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/settings/ui/SettingsFragment.kt

@@ -16,16 +16,19 @@ import chat.rocket.android.util.extensions.inflate
 import kotlinx.android.synthetic.main.fragment_settings.*
 import kotlin.reflect.KClass
 
-class SettingsFragment: Fragment(), SettingsView, AdapterView.OnItemClickListener {
+class SettingsFragment : Fragment(), SettingsView, AdapterView.OnItemClickListener {
     companion object {
         fun newInstance() = SettingsFragment()
     }
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? = container?.inflate(R.layout.fragment_settings)
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? = container?.inflate(R.layout.fragment_settings)
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-
         setupToolbar()
         setupListView()
     }
@@ -34,7 +37,8 @@ class SettingsFragment: Fragment(), SettingsView, AdapterView.OnItemClickListene
         when (parent?.getItemAtPosition(position).toString()) {
             resources.getString(R.string.title_password) -> {
                 startNewActivity(PasswordActivity::class)
-            }resources.getString(R.string.title_about) -> {
+            }
+            resources.getString(R.string.title_about) -> {
                 startNewActivity(AboutActivity::class)
             }
         }
@@ -45,7 +49,8 @@ class SettingsFragment: Fragment(), SettingsView, AdapterView.OnItemClickListene
     }
 
     private fun setupToolbar() {
-        (activity as AppCompatActivity?)?.supportActionBar?.title = getString(R.string.title_settings)
+        (activity as AppCompatActivity?)?.supportActionBar?.title =
+                getString(R.string.title_settings)
     }
 
     private fun startNewActivity(classType: KClass<out AppCompatActivity>) {

app/src/main/java/chat/rocket/android/util/extensions/Rx.kt

@@ -4,10 +4,10 @@ import android.widget.EditText
 import com.jakewharton.rxbinding2.widget.RxTextView
 import io.reactivex.Observable
 import io.reactivex.android.schedulers.AndroidSchedulers
-import java.util.concurrent.TimeUnit
+import io.reactivex.schedulers.Schedulers
 
 fun EditText.asObservable(): Observable<CharSequence> {
     return RxTextView.textChanges(this)
+        .subscribeOn(Schedulers.io())
         .observeOn(AndroidSchedulers.mainThread())
-        .subscribeOn(AndroidSchedulers.mainThread())
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/widget/autocompletion/ui/PopupRecyclerView.kt

 package chat.rocket.android.widget.autocompletion.ui
 
 import android.content.Context
-import androidx.recyclerview.widget.RecyclerView
 import android.util.AttributeSet
 import android.util.DisplayMetrics
 import android.view.WindowManager
+import androidx.recyclerview.widget.RecyclerView
 import chat.rocket.android.R
 
-
 internal class PopupRecyclerView : RecyclerView {
-
     private var displayWidth: Int = 0
+
     constructor(context: Context) : this(context, null)
     constructor(context: Context, attrs: AttributeSet?) : this(context, attrs, 0)
-    constructor(context: Context, attrs: AttributeSet?, defStyle: Int) : super(context, attrs, defStyle) {
-        val wm = context!!.getSystemService(Context.WINDOW_SERVICE) as WindowManager
+    constructor(context: Context, attrs: AttributeSet?, defStyle: Int) : super(
+        context,
+        attrs,
+        defStyle
+    ) {
+        val wm = context.getSystemService(Context.WINDOW_SERVICE) as WindowManager
         val display = wm.defaultDisplay
         val size = DisplayMetrics()
         display.getMetrics(size)
@@ -23,8 +26,11 @@ internal class PopupRecyclerView : RecyclerView {
     }
 
     override fun onMeasure(widthSpec: Int, heightSpec: Int) {
-        val hSpec = MeasureSpec.makeMeasureSpec(resources.getDimensionPixelSize(
-                R.dimen.popup_max_height), MeasureSpec.AT_MOST)
+        val hSpec = MeasureSpec.makeMeasureSpec(
+            resources.getDimensionPixelSize(
+                R.dimen.popup_max_height
+            ), MeasureSpec.AT_MOST
+        )
         val wSpec = MeasureSpec.makeMeasureSpec(displayWidth, MeasureSpec.EXACTLY)
         super.onMeasure(wSpec, hSpec)
     }

app/src/main/res/drawable/ic_add_white_24dp.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="@color/colorWhite"
+        android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
+</vector>

app/src/main/res/drawable/ic_create_black_24dp.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M3,17.25V21h3.75L17.81,9.94l-3.75,-3.75L3,17.25zM20.71,7.04c0.39,-0.39 0.39,-1.02 0,-1.41l-2.34,-2.34c-0.39,-0.39 -1.02,-0.39 -1.41,0l-1.83,1.83 3.75,3.75 1.83,-1.83z"/>
+</vector>

app/src/main/res/drawable/ic_fab_24dp.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
+</vector>

app/src/main/res/drawable/style_total_unread_messages.xml

@@ -2,7 +2,6 @@
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
     android:shape="oval">
 
-    <solid
-        android:color="@color/colorAccent" />
+    <solid android:color="@color/colorAccent" />
 
 </shape>
\ No newline at end of file

app/src/main/res/drawable/suggestions_menu_decorator.xml

 <?xml version="1.0" encoding="utf-8"?>
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
     android:shape="rectangle">
+
     <solid android:color="#10000000" />
+
     <corners android:radius="5dp" />
+
     <size android:height="2dp" />
+
 </shape>
\ No newline at end of file

app/src/main/res/layout/activity_add_members.xml

+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <include
+        android:id="@+id/toolbar_layout"
+        layout="@layout/layout_toolbar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <android.support.constraint.ConstraintLayout
+        android:id="@+id/layout_container"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/toolbar_layout">
+
+        <android.support.design.chip.ChipGroup
+            android:id="@+id/members_chips"
+            style="@style/Widget.MaterialComponents.Chip.Entry"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="8dp"
+            android:visibility="gone"
+            app:chipSpacing="3dp"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent">
+
+        </android.support.design.chip.ChipGroup>
+
+        <com.wang.avi.AVLoadingIndicatorView
+            android:id="@+id/view_loading"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:visibility="gone"
+            app:indicatorColor="@color/colorPrimary"
+            app:indicatorName="BallPulseIndicator"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <EditText
+            android:id="@+id/text_search_member"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:backgroundTint="@android:color/transparent"
+            android:hint="@string/msg_search"
+            android:paddingBottom="8dp"
+            android:paddingEnd="8dp"
+            android:paddingStart="8dp"
+            app:layout_constraintTop_toBottomOf="@id/members_chips" />
+
+        <View
+            android:id="@+id/separator_1"
+            android:layout_width="match_parent"
+            android:layout_height="0.2dp"
+            android:background="@color/colorDividerMessageComposer"
+            app:layout_constraintTop_toBottomOf="@id/text_search_member" />
+
+        <android.support.v7.widget.RecyclerView
+            android:id="@+id/recycler_view"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:scrollbars="vertical"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/separator_1" />
+    </android.support.constraint.ConstraintLayout>
+</android.support.constraint.ConstraintLayout>
\ No newline at end of file

app/src/main/res/layout/emoji_keyboard.xml

@@ -19,6 +19,8 @@
     <include
         android:id="@+id/picker_container"
         layout="@layout/emoji_picker"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
         app:layout_constraintBottom_toTopOf="@+id/emoji_actions_container"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"

app/src/main/res/layout/fragment_chat_rooms.xml

@@ -46,14 +46,13 @@
         tools:visibility="visible" />
 
     <TextView
-        android:id="@+id/text_no_search"
+        android:id="@+id/text_no_result_found"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:layout_centerHorizontal="true"
         android:layout_marginTop="56dp"
         android:text="@string/msg_no_search_found"
         android:textSize="20sp"
-        android:layout_centerHorizontal="true"
         android:visibility="gone"
         tools:visibility="visible" />
-
 </RelativeLayout>
\ No newline at end of file

app/src/main/res/layout/fragment_create_channel.xml

+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_margin="16dp"
+    android:focusableInTouchMode="true"
+    tools:context="createchannel.ui.CreateChannelFragment">
+
+    <com.wang.avi.AVLoadingIndicatorView
+        android:id="@+id/view_loading"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:visibility="gone"
+        app:indicatorColor="@color/colorBlack"
+        app:indicatorName="BallPulseIndicator"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:visibility="visible" />
+
+    <TextView
+        android:id="@+id/text_channel_type"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/msg_public_channel"
+        android:textColor="@color/colorPrimaryText"
+        android:textSize="16sp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/text_channel_type_description"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/msg_public_channel_description"
+        android:textColor="@color/colorSecondaryText"
+        android:textSize="12sp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/text_channel_type" />
+
+    <Switch
+        android:id="@+id/switch_channel_type"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:layout_constraintBottom_toBottomOf="@+id/text_channel_type_description"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="@+id/text_channel_type" />
+
+    <TextView
+        android:id="@+id/text_read_only"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:text="@string/msg_ready_only_channel"
+        android:textColor="@color/colorPrimaryText"
+        android:textSize="16sp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/text_channel_type_description" />
+
+    <TextView
+        android:id="@+id/text_read_only_description"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/msg_ready_only_channel_description"
+        android:textColor="@color/colorSecondaryText"
+        android:textSize="12sp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/text_read_only" />
+
+    <Switch
+        android:id="@+id/switch_read_only"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:layout_constraintBottom_toBottomOf="@+id/text_read_only_description"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="@+id/text_read_only" />
+
+    <ImageView
+        android:id="@+id/image_channel_icon"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="22dp"
+        android:src="@drawable/ic_hashtag_black_12dp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/text_read_only_description" />
+
+    <EditText
+        android:id="@+id/text_channel_name"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:backgroundTint="@color/colorDim"
+        android:hint="@string/msg_channel_name"
+        android:inputType="text"
+        android:maxLines="1"
+        android:paddingEnd="10dp"
+        android:paddingStart="24dp"
+        android:textSize="16sp"
+        app:layout_constraintBottom_toBottomOf="@+id/image_channel_icon"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="@+id/image_channel_icon"
+        app:layout_constraintTop_toTopOf="@+id/image_channel_icon" />
+
+    <ImageView
+        android:id="@+id/image_invite_member"
+        android:layout_width="14dp"
+        android:layout_height="14dp"
+        android:layout_marginTop="16dp"
+        android:src="@drawable/ic_at_black_24dp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/text_channel_name" />
+
+    <EditText
+        android:id="@+id/text_invite_members"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:backgroundTint="@color/colorDim"
+        android:hint="@string/msg_invite_members"
+        android:inputType="text"
+        android:maxLines="1"
+        android:paddingEnd="10dp"
+        android:paddingStart="24dp"
+        android:textSize="16sp"
+        app:layout_constraintBottom_toBottomOf="@+id/image_invite_member"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="@+id/image_invite_member"
+        app:layout_constraintTop_toTopOf="@+id/image_invite_member" />
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/view_member_suggestion"
+        android:layout_width="match_parent"
+        android:layout_height="100dp"
+        android:layout_marginEnd="12dp"
+        android:layout_marginStart="12dp"
+        android:background="@color/colorWhite"
+        android:elevation="2dp"
+        android:orientation="vertical"
+        android:visibility="gone"
+        app:layout_constraintBottom_toTopOf="@+id/text_invite_members">
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/recycler_view"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:visibility="gone" />
+
+        <com.wang.avi.AVLoadingIndicatorView
+            android:id="@+id/view_member_suggestion_loading"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:visibility="gone"
+            app:indicatorColor="@color/colorBlack"
+            app:indicatorName="BallPulseIndicator"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <TextView
+            android:id="@+id/text_member_not_found"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/msg_member_not_found"
+            android:visibility="gone"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+    <com.google.android.material.chip.ChipGroup
+        android:id="@+id/chip_group_member"
+        style="@style/Widget.MaterialComponents.Chip.Entry"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:visibility="gone"
+        app:chipSpacing="3dp"
+        app:layout_constraintTop_toBottomOf="@+id/text_invite_members" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file

app/src/main/res/layout/layout_toolbar.xml

+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/toolbar_container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <android.support.v7.widget.Toolbar
+        android:id="@+id/toolbar"
+        android:layout_width="match_parent"
+        android:layout_height="@dimen/toolbar_height"
+        android:background="@color/colorPrimary"
+        app:layout_scrollFlags="scroll|enterAlways"
+        app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
+        app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
+
+        <TextView
+            android:id="@+id/toolbar_title"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textColor="@color/colorLightTheme"
+            android:textSize="18sp" />
+
+        <TextView
+            android:id="@+id/toolbar_action_text"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginEnd="16dp"
+            android:gravity="end"
+            android:textSize="14sp" />
+
+    </android.support.v7.widget.Toolbar>
+
+</android.support.constraint.ConstraintLayout>
\ No newline at end of file

app/src/main/res/menu/create_channel.xml

+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item
+        android:id="@+id/action_create_channel"
+        android:icon="@drawable/ic_check_white_24dp"
+        android:title="@string/action_create" />
+
+</menu>
\ No newline at end of file

app/src/main/res/menu/navigation.xml

@@ -11,6 +11,16 @@
             android:icon="@drawable/ic_chat_bubble_black_24dp"
             android:title="@string/title_chats" />
 
+        <item
+            android:id="@+id/action_channel"
+            android:icon="@drawable/ic_create_black_24dp"
+            android:title="@string/action_create_channel" />
+    </group>
+
+    <group
+        android:id="@+id/menu_section_2"
+        android:checkableBehavior="single">
+
         <item
             android:id="@+id/action_profile"
             android:icon="@drawable/ic_person_black_24dp"
@@ -19,16 +29,16 @@
         <item
             android:id="@+id/action_settings"
             android:icon="@drawable/ic_settings_black_24dp"
-            android:title="@string/title_settings"/>
+            android:title="@string/title_settings" />
     </group>
 
     <group
-        android:id="@+id/menu_section_2"
-        android:checkableBehavior="none">
+        android:id="@+id/menu_section_3"
+        android:checkableBehavior="single">
+
         <item
             android:id="@+id/action_logout"
             android:icon="@drawable/ic_exit_to_app_black_24dp"
             android:title="@string/action_logout" />
     </group>
-
 </menu>
\ No newline at end of file

app/src/main/res/menu/profile.xml

@@ -2,7 +2,7 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android">
 
     <item
-        android:id="@+id/action_profile"
+        android:id="@+id/action_update_profile"
         android:icon="@drawable/ic_check_white_24dp"
         android:title="@string/action_update" />
 

app/src/main/res/values-es/strings.xml

@@ -15,6 +15,8 @@
     <string name="title_password">Cambia la contraseña</string>
     <string name="title_update_profile">Actualización del perfil</string>
     <string name="title_about">Acerca de</string>
+    // TODO: Add proper translation.
+    <string name="title_create_channel">Create Channel</string>
 
     <!-- Actions -->
     <string name="action_connect">Conectar</string>
@@ -25,6 +27,9 @@
     <string name="action_search">Buscar</string>
     <string name="action_update">Actualizar</string>
     <string name="action_settings">Configuraciones</string>
+    // TODO: Add proper translation.
+    <string name="action_create_channel">Create channel</string>
+    <string name="action_create">Create</string>
     <string name="action_logout">Cerrar sesión</string>
     <string name="action_files">Archivos</string>
     <string name="action_confirm_password">Confirmar cambio de contraseña</string>
@@ -37,7 +42,6 @@
     // TODO: Add proper translation.
     <string name="action_save_to_gallery">Save to gallery</string>
 
-
     <!-- Settings List -->
     <string-array name="settings_actions">
         <item name="item_password">Cambia la contraseña</item>
@@ -123,7 +127,28 @@
     // TODO: Add proper translation.
     <string name="msg_several_users_are_typing">Several users are typing…</string>
     <string name="msg_no_search_found">No se han encontrado resultados</string>
+    // TODO: Add proper translation.
+    <string name="msg_channel_name">Channel name</string>
+    // TODO: Add proper translation.
+    <string name="msg_search">Search</string>
     <string name="msg_message_copied">Mensaje copiado</string>
+    // TODO: Add proper translation.
+    <string name="msg_delete_message">Delete Message</string>
+    <string name="msg_delete_description">Are you sure you want to delete this message</string>
+
+    <!-- Create channel messages -->
+    // TODO: Add proper translation.
+    <string name="msg_private_channel">Private</string>
+    <string name="msg_public_channel">Public</string>
+    <string name="msg_private_channel_description">Only you and invited members can access this channel</string>
+    <string name="msg_public_channel_description">Everyone can access this channel</string>
+    <string name="msg_ready_only_channel">Read only channel</string>
+    <string name="msg_ready_only_channel_description">Only admin can write new messages</string>
+    <string name="msg_invite_members">Invite members to channel</string>
+    <string name="msg_member_already_added">You have already selected this user</string>
+    <string name="msg_member_not_found">Member not found</string>
+    <string name="msg_channel_created_successfully">Channel created successfully</string>
+
 
     <!-- System messages -->
     <string name="message_room_name_changed">Nombre de la sala cambiado para: %1$s por %2$s</string>
@@ -141,7 +166,6 @@
     // TODO:Add proper translation.
     <string name="message_credentials_saved_successfully">Credentials saved successfully</string>
 
-
     <!-- Message actions -->
     <string name="action_msg_reply">Respuesta</string>
     <string name="action_msg_edit">Editar</string>

app/src/main/res/values-fr/strings.xml

@@ -15,6 +15,8 @@
     <string name="title_password">Changer le mot de passe</string>
     <string name="title_update_profile">Update profile</string>
     <string name="title_about">Sur</string>
+    // TODO: Add proper translation.
+    <string name="title_create_channel">Create Channel</string>
 
     <!-- Actions -->
     <string name="action_connect">Se connecter</string>
@@ -25,6 +27,9 @@
     <string name="action_search">Chercher</string>
     <string name="action_update">Mettre à jour</string>
     <string name="action_settings">Paramètres</string>
+    // TODO: Add proper translation.
+    <string name="action_create_channel">Create channel</string>
+    <string name="action_create">Create</string>
     <string name="action_logout">Se déconnecter</string>
     <string name="action_files">Fichiers</string>
     <string name="action_confirm_password">Confirmer le mot de passe</string>
@@ -122,7 +127,27 @@
     // TODO: Add proper translation.
     <string name="msg_several_users_are_typing">Several users are typing…</string>
     <string name="msg_no_search_found">Aucun résultat trouvé</string>
+    // TODO: Add proper translation.
+    <string name="msg_channel_name">Channel name</string>
+    // TODO: Add proper translation.
+    <string name="msg_search">Search</string>
     <string name="msg_message_copied">Message copié</string>
+    // TODO: Add proper translation.
+    <string name="msg_delete_message">Delete Message</string>
+    <string name="msg_delete_description">Are you sure you want to delete this message</string>
+
+    <!-- Create channel messages -->
+    // TODO: Add proper translation.
+    <string name="msg_private_channel">Private</string>
+    <string name="msg_public_channel">Public</string>
+    <string name="msg_private_channel_description">Only you and invited members can access this channel</string>
+    <string name="msg_public_channel_description">Everyone can access this channel</string>
+    <string name="msg_ready_only_channel">Read only channel</string>
+    <string name="msg_ready_only_channel_description">Only admin can write new messages</string>
+    <string name="msg_invite_members">Invite members to channel</string>
+    <string name="msg_member_already_added">You have already selected this user</string>
+    <string name="msg_member_not_found">Member not found</string>
+    <string name="msg_channel_created_successfully">Channel created successfully</string>
 
     <!-- System messages -->
     <string name="message_room_name_changed">Le nom de le salle a changé à: %1$s par %2$s</string>
@@ -137,10 +162,10 @@
     <string name="message_unmuted">Utilisateur %1$s non muté par %2$s</string>
     <string name="message_role_add">%1$s a été défini %2$s par %3$s</string>
     <string name="message_role_removed">%1$s is no longer %2$s par %3$s</string>
+
     // TODO:Add proper translation.
     <string name="message_credentials_saved_successfully">Credentials saved successfully</string>
 
-
     <!-- Message actions -->
     <string name="action_msg_reply">Répondre</string>
     <string name="action_msg_edit">Modifier</string>

app/src/main/res/values-hi-rIN/strings.xml

@@ -15,6 +15,8 @@
     <string name="title_password">पासवर्ड बदलें</string>
     <string name="title_update_profile">प्रोफ़ाइल अपडेट करें</string>
     <string name="title_about">परिचय</string>
+    // TODO: Add proper translation.
+    <string name="title_create_channel">Create Channel</string>
 
     <!-- Actions -->
     <string name="action_connect">जुडिये</string>
@@ -25,6 +27,9 @@
     <string name="action_search">खोजें</string>
     <string name="action_update">अद्यतन करें</string>
     <string name="action_settings">सेटिंग्स</string>
+    // TODO: Add proper translation.
+    <string name="action_create_channel">Create channel</string>
+    <string name="action_create">Create</string>
     <string name="action_logout">लोग आउट करें</string>
     <string name="action_files">फ़ाइलें</string>
     <string name="action_confirm_password">पासवर्ड परिवर्तन की पुष्टि करें</string>
@@ -113,7 +118,26 @@
     <string name="msg_are_typing">\u0020टाइप कर रहे हैं…</string>
     <string name="msg_several_users_are_typing">कई उपयोगकर्ता टाइप कर रहे हैं…</string>
     <string name="msg_no_search_found">कोई परिणाम नहीं मिला</string>
+    // TODO: Add proper translation.
+    <string name="msg_channel_name">Channel name</string>
+    // TODO: Add proper translation.
+    <string name="msg_search">Search</string>
     <string name="msg_message_copied">संदेश कॉपी किया गया</string>
+    <string name="msg_delete_message">संदेश को हटाएं</string>
+    <string name="msg_delete_description">क्या आप निश्चित रूप से यह संदेश हटाना चाहते हैं</string>
+
+    <!-- Create channel messages -->
+    // TODO: Add proper translation.
+    <string name="msg_private_channel">Private</string>
+    <string name="msg_public_channel">Public</string>
+    <string name="msg_private_channel_description">Only you and invited members can access this channel</string>
+    <string name="msg_public_channel_description">Everyone can access this channel</string>
+    <string name="msg_ready_only_channel">Read only channel</string>
+    <string name="msg_ready_only_channel_description">Only admin can write new messages</string>
+    <string name="msg_invite_members">Invite members to channel</string>
+    <string name="msg_member_already_added">You have already selected this user</string>
+    <string name="msg_member_not_found">Member not found</string>
+    <string name="msg_channel_created_successfully">Channel created successfully</string>
 
     <!-- System messages -->
     <string name="message_room_name_changed">%2$s ने रूम का नाम बदलकर %1$s किया</string>

app/src/main/res/values-pt-rBR/strings.xml

@@ -15,6 +15,7 @@
     <string name="title_password">Alterar senha</string>
     <string name="title_update_profile">Editar perfil</string>
     <string name="title_about">Sobre</string>
+    <string name="title_create_channel">Criar chat</string>
 
     <!-- Actions -->
     <string name="action_connect">Conectar</string>
@@ -25,6 +26,8 @@
     <string name="action_search">Pesquisar</string>
     <string name="action_update">Atualizar</string>
     <string name="action_settings">Configurações</string>
+    <string name="action_create_channel">Criar chat</string>
+    <string name="action_create">Criar</string>
     <string name="action_logout">Sair</string>
     <string name="action_files">Arquivos</string>
     <string name="action_confirm_password">Confirme a nova senha</string>
@@ -113,7 +116,24 @@
     <string name="msg_are_typing">\u0020estão digitando…</string>
     <string name="msg_several_users_are_typing">Vários usuários estão digitando…</string>
     <string name="msg_no_search_found">nenhum resultado encontrado</string>
+    <string name="msg_channel_name">Nome do chat</string>
+    <string name="msg_search">Buscar</string>
     <string name="msg_message_copied">Mensagem copiada</string>
+    // TODO: Add proper translation.
+    <string name="msg_delete_message">Delete Message</string>
+    <string name="msg_delete_description">Are you sure you want to delete this message</string>
+
+    <!-- Create channel messages -->
+    <string name="msg_private_channel">Privado</string>
+    <string name="msg_public_channel">Público</string>
+    <string name="msg_private_channel_description">Somente você e membros convidados poderão acessar este chat</string>
+    <string name="msg_public_channel_description">Todos poderão acessar este canal</string>
+    <string name="msg_ready_only_channel">Read only channel</string>
+    <string name="msg_ready_only_channel_description">Somemnte administradores podem escrever mensagens</string>
+    <string name="msg_invite_members">Convidar membros para o chat</string>
+    <string name="msg_member_already_added">Você já selecionou este usuário</string>
+    <string name="msg_member_not_found">Membro não encontrado</string>
+    <string name="msg_channel_created_successfully">Chat criado com sucesso</string>
 
     <!-- System messages -->
     <string name="message_room_name_changed">Nome da sala alterado para: %1$s por %2$s</string>

app/src/main/res/values-uk-rRU/strings.xml

@@ -15,6 +15,7 @@
     <string name="title_password">Изменить пароль</string>
     <string name="title_update_profile">Обновить профиль</string>
     <string name="title_about">О программе</string>
+    <string name="title_create_channel">Створити новий канал</string>
 
     <!-- Actions -->
     <string name="action_connect">Соединение</string>
@@ -25,6 +26,9 @@
     <string name="action_search">Поиск</string>
     <string name="action_update">Обновить</string>
     <string name="action_settings">Настройки</string>
+    // TODO: Add proper translation.
+    <string name="action_create_channel">Create channel</string>
+    <string name="action_create">Create</string>
     <string name="action_logout">Выйти</string>
     <string name="action_files">Файлы</string>
     <string name="action_confirm_password">Подтверждение изменения пароля</string>
@@ -113,6 +117,24 @@
     <string name="msg_several_users_are_typing">Несколько пользователей печатают…</string>
     <string name="msg_no_search_found">Результатов не найдено</string>
     <string name="msg_message_copied">Сообщение скопировано</string>
+    // TODO: Add proper translation.
+    <string name="msg_delete_message">Delete Message</string>
+    <string name="msg_delete_description">Are you sure you want to delete this message</string>
+    <string name="msg_channel_name">Назва каналу</string>
+    <string name="msg_search">Пошук</string>
+
+    <!-- Create channel messages -->
+    // TODO: Add proper translation.
+    <string name="msg_private_channel">Private</string>
+    <string name="msg_public_channel">Public</string>
+    <string name="msg_private_channel_description">Only you and invited members can access this channel</string>
+    <string name="msg_public_channel_description">Everyone can access this channel</string>
+    <string name="msg_ready_only_channel">Read only channel</string>
+    <string name="msg_ready_only_channel_description">Only admin can write new messages</string>
+    <string name="msg_invite_members">Invite members to channel</string>
+    <string name="msg_member_already_added">You have already selected this user</string>
+    <string name="msg_member_not_found">Member not found</string>
+    <string name="msg_channel_created_successfully">Channel created successfully</string>
 
     <!-- System messages -->
     <string name="message_room_name_changed">Название канала изменено на: %1$s by %2$s</string>

app/src/main/res/values/dimens.xml

@@ -32,6 +32,9 @@
     <dimen name="picker_popup_height">250dp</dimen>
     <dimen name="picker_popup_width">300dp</dimen>
 
+    <!--Toolbar-->
+    <dimen name="toolbar_height">56dp</dimen>
+
     <!-- Message -->
     <dimen name="padding_quote">8dp</dimen>
     <dimen name="padding_mention">4dp</dimen>

app/src/main/res/values/strings.xml

@@ -16,6 +16,7 @@
     <string name="title_password">Change Password</string>
     <string name="title_update_profile">Update profile</string>
     <string name="title_about">About</string>
+    <string name="title_create_channel">Create Channel</string>
 
     <!-- Actions -->
     <string name="action_connect">Connect</string>
@@ -26,6 +27,8 @@
     <string name="action_search">Search</string>
     <string name="action_update">Update</string>
     <string name="action_settings">Settings</string>
+    <string name="action_create_channel">Create channel</string>
+    <string name="action_create">Create</string>
     <string name="action_logout">Logout</string>
     <string name="action_files">Files</string>
     <string name="action_confirm_password">Confirm Password Change</string>
@@ -83,6 +86,8 @@
     <string name="msg_utc_offset">UTC offset</string>
     <string name="msg_new_password">Enter New Password</string>
     <string name="msg_confirm_password">Confirm New Password</string>
+    <string name="msg_channel_name">Channel name</string>
+    <string name="msg_search">Search</string>
     <string name="msg_unread_messages">Unread messages</string>
     <string name="msg_preview_video">Video</string>
     <string name="msg_preview_audio">Audio</string>
@@ -114,7 +119,22 @@
     <string name="msg_are_typing">\u0020are typing…</string>
     <string name="msg_several_users_are_typing">Several users are typing…</string>
     <string name="msg_no_search_found">No result found</string>
+
+    <!-- Create channel messages -->
+    <string name="msg_private_channel">Private</string>
+    <string name="msg_public_channel">Public</string>
+    <string name="msg_private_channel_description">Only you and invited members can access this channel</string>
+    <string name="msg_public_channel_description">Everyone can access this channel</string>
+    <string name="msg_ready_only_channel">Read only channel</string>
+    <string name="msg_ready_only_channel_description">Only admin can write new messages</string>
+    <string name="msg_invite_members">Invite members to channel</string>
+    <string name="msg_member_already_added">You have already selected this user</string>
+    <string name="msg_member_not_found">Member not found</string>
+    <string name="msg_channel_created_successfully">Channel created successfully</string>
+
     <string name="msg_message_copied">Message copied</string>
+    <string name="msg_delete_message">Delete Message</string>
+    <string name="msg_delete_description">Are you sure you want to delete this message</string>
 
     <!-- System messages -->
     <string name="message_room_name_changed">Room name changed to: %1$s by %2$s</string>

app/src/main/res/values/styles.xml

@@ -11,6 +11,10 @@
         <item name="windowActionModeOverlay">true</item>
     </style>
 
+    <style name="ToolbarTheme" parent="Base.Widget.AppCompat.Toolbar">
+        <item name="android:colorAccent">@color/colorLightTheme</item>
+    </style>
+
     <style name="AuthenticationTheme" parent="Theme.AppCompat.NoActionBar">
         <item name="android:statusBarColor">@color/colorPrimaryDark</item>
         <item name="android:windowBackground">@color/colorPrimary</item>

dependencies.gradle

@@ -122,4 +122,4 @@ ext {
             roomTest              : "android.arch.persistence.room:testing:${versions.room}",
             truth                 : "com.google.truth:truth:$versions.truth"
     ]
-}
+}
\ No newline at end of file

gradle/wrapper/gradle-wrapper.properties

-#Wed Sep 06 11:04:56 UYT 2017
+#Fri May 18 17:08:16 IST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME