About Activity to Fragment

app/src/main/AndroidManifest.xml

@@ -79,11 +79,6 @@
             android:name=".settings.password.ui.PasswordActivity"
             android:theme="@style/AppTheme" />
 
-        <!-- TODO: Change to fragment -->
-        <activity
-            android:name=".settings.about.ui.AboutActivity"
-            android:theme="@style/AppTheme" />
-
         <receiver
             android:name=".push.DirectReplyReceiver"
             android:enabled="true"

app/src/main/java/chat/rocket/android/about/ui/AboutFragment.kt

+package chat.rocket.android.about.ui
+
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import chat.rocket.android.BuildConfig
+import chat.rocket.android.R
+import chat.rocket.android.main.ui.MainActivity
+import kotlinx.android.synthetic.main.app_bar.*
+import kotlinx.android.synthetic.main.fragment_about.*
+
+
+class AboutFragment : Fragment() {
+
+    companion object {
+        fun newInstance() = AboutFragment()
+    }
+    override fun onCreateView(inflater: LayoutInflater,
+                              container: ViewGroup?,
+                              savedInstanceState: Bundle?
+    ): View? = inflater.inflate(R.layout.fragment_about, container, false)
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        setupToolbar()
+        setupViews()
+    }
+
+    private fun setupViews() {
+        text_version_name.text = getString(R.string.msg_version, BuildConfig.VERSION_NAME)
+        text_build_number.text = getString(R.string.msg_build, BuildConfig.VERSION_CODE)
+    }
+
+    private fun setupToolbar() {
+        val toolbar = (activity as MainActivity).toolbar
+        toolbar.title = getString(R.string.title_about)
+        toolbar.setNavigationIcon(R.drawable.ic_arrow_back_white_24dp)
+        toolbar.setNavigationOnClickListener {
+            this.activity?.onBackPressed()
+        }
+    }
+
+    override fun onStop() {
+        super.onStop()
+        (activity as MainActivity).toolbar.setNavigationIcon(R.drawable.ic_menu_white_24dp)
+    }
+}

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

@@ -148,7 +148,7 @@ class ChatRoomsFragment : Fragment(), ChatRoomsView {
         inflater.inflate(R.menu.chatrooms, menu)
 
         val searchItem = menu.findItem(R.id.action_search)
-        searchView = searchItem?.actionView as SearchView
+        searchView = searchItem?.actionView as SearchView?
         searchView?.maxWidth = Integer.MAX_VALUE
         searchView?.setOnQueryTextListener(object : SearchView.OnQueryTextListener {
             override fun onQueryTextSubmit(query: String?): Boolean {

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

-package chat.rocket.android.settings.about.ui
-
-import android.os.Bundle
-import androidx.appcompat.app.AppCompatActivity
-import chat.rocket.android.BuildConfig
-import chat.rocket.android.R
-import chat.rocket.android.util.extensions.textContent
-import kotlinx.android.synthetic.main.about_view.*
-import kotlinx.android.synthetic.main.app_bar_password.*
-
-class AboutActivity : AppCompatActivity() {
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_about)
-
-        setupToolbar()
-        setupViews()
-    }
-
-    private fun setupViews() {
-        text_version_name.text = getString(R.string.msg_version, BuildConfig.VERSION_NAME)
-        text_build_number.text = getString(R.string.msg_build, BuildConfig.VERSION_CODE)
-    }
-
-    private fun setupToolbar() {
-        setSupportActionBar(toolbar)
-        text_change_password.textContent = getString(R.string.title_about)
-    }
-
-    override fun onBackPressed() {
-        super.onBackPressed()
-        finish()
-        overridePendingTransition(R.anim.close_enter, R.anim.close_exit)
-    }
-
-    override fun onSupportNavigateUp(): Boolean {
-        onBackPressed()
-        return super.onNavigateUp()
-    }
-}

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

@@ -9,9 +9,10 @@ import android.view.View
 import android.view.ViewGroup
 import android.widget.AdapterView
 import chat.rocket.android.R
-import chat.rocket.android.settings.about.ui.AboutActivity
+import chat.rocket.android.about.ui.AboutFragment
 import chat.rocket.android.settings.password.ui.PasswordActivity
 import chat.rocket.android.settings.presentation.SettingsView
+import chat.rocket.android.util.extensions.addFragmentBackStack
 import chat.rocket.android.util.extensions.inflate
 import kotlinx.android.synthetic.main.fragment_settings.*
 import kotlin.reflect.KClass
@@ -39,7 +40,9 @@ class SettingsFragment : Fragment(), SettingsView, AdapterView.OnItemClickListen
                 startNewActivity(PasswordActivity::class)
             }
             resources.getString(R.string.title_about) -> {
-                startNewActivity(AboutActivity::class)
+                (activity as AppCompatActivity).addFragmentBackStack("AboutFragmnet", R.id.fragment_container){
+                    AboutFragment.newInstance()
+                }
             }
         }
     }

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

-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical"
-    android:theme="@style/AppTheme"
-    tools:context="chat.rocket.android.settings.about.ui.AboutActivity">
-    <include
-        android:id="@+id/layout_app_bar"
-        layout="@layout/app_bar_password" />
-    <include layout="@layout/about_view"/>
-</LinearLayout>
\ No newline at end of file

app/src/main/res/layout/about_view.xml → app/src/main/res/layout/fragment_about.xml

-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools">
+    tools:context="chat.rocket.android.about.ui.AboutFragment">
 
     <ImageView
         android:id="@+id/image_app_name"
@@ -14,7 +13,7 @@
         app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"/>
+        app:layout_constraintEnd_toEndOf="parent" />
 
     <ImageView
         android:layout_width="160dp"
@@ -25,8 +24,7 @@
         app:layout_constraintBottom_toTopOf="@id/image_app_name"
         android:adjustViewBounds="true"
         android:scaleX="1.5"
-        android:scaleY="1.5"
-        />
+        android:scaleY="1.5" />
 
     <TextView
         android:id="@+id/text_version_name"
@@ -37,7 +35,7 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/image_app_name"
         android:layout_marginTop="16dp"
-        android:textColor="@color/colorSecondaryText"/>
+        android:textColor="@color/colorSecondaryText" />
 
     <TextView
         android:id="@+id/text_build_number"
@@ -48,6 +46,6 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/text_version_name"
         android:layout_marginTop="8dp"
-        android:textColor="@color/colorSecondaryText"/>
+        android:textColor="@color/colorSecondaryText" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>