requested changes

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

@@ -803,11 +803,11 @@ class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardListener, EmojiR
             }
 
             button_drawing.setOnClickListener {
-                context?.let {
+                activity?.let {
                     if (!ImageHelper.canWriteToExternalStorage(it)) {
                         ImageHelper.checkWritingPermission(it)
                     }else{
-                        val intent = Intent(activity, DrawingActivity::class.java)
+                        val intent = Intent(it, DrawingActivity::class.java)
                         startActivityForResult(intent, REQUEST_CODE_FOR_DRAW)
                     }
                 }

app/src/main/java/chat/rocket/android/helper/ImageHelper.kt

@@ -155,8 +155,8 @@ object ImageHelper {
     }
 
     fun checkWritingPermission(context: Context) {
-        if (context is ContextThemeWrapper && context.baseContext is Activity) {
-            val activity = context.baseContext as Activity
+        if (context is ContextThemeWrapper) {
+            val activity = if (context.baseContext is Activity) context.baseContext as Activity else context as Activity
             AndroidPermissionsHelper.requestPermission(
                 activity,
                 Manifest.permission.WRITE_EXTERNAL_STORAGE,

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

@@ -6,5 +6,5 @@
         android:id="@+id/action_save_image"
         android:icon="@drawable/ic_file_download_white_24dp"
         android:title="@string/action_save_to_gallery"
-        android:showAsAction="always" />
+        app:showAsAction="always" />
 </menu>
\ No newline at end of file

draw/src/main/java/chat/rocket/android/draw/widget/Action.kt

@@ -2,10 +2,9 @@ package chat.rocket.android.draw.widget
 
 import android.graphics.Path
 import java.io.Serializable
-import java.io.Writer
 
 interface Action : Serializable {
+
     fun perform(path: Path)
 
-    fun perform(writer: Writer)
 }

draw/src/main/java/chat/rocket/android/draw/widget/Line.kt

 package chat.rocket.android.draw.widget
 
 import android.graphics.Path
-import java.io.Writer
-import java.security.InvalidParameterException
 
 class Line(val x: Float, val y: Float) : Action {
 
     override fun perform(path: Path) {
         path.lineTo(x, y)
     }
-
-    override fun perform(writer: Writer) {
-        writer.write("L$x,$y")
-    }
 }
\ No newline at end of file

draw/src/main/java/chat/rocket/android/draw/widget/Move.kt

 package chat.rocket.android.draw.widget
 
 import android.graphics.Path
-import java.io.Writer
-import java.security.InvalidParameterException
 
 class Move(val x: Float, val y: Float) : Action {
 
     override fun perform(path: Path) {
         path.moveTo(x, y)
     }
-
-    override fun perform(writer: Writer) {
-        writer.write("M$x,$y")
-    }
 }
\ No newline at end of file

draw/src/main/java/chat/rocket/android/draw/widget/MyPath.kt

 package chat.rocket.android.draw.widget
 
 import android.graphics.Path
-import java.io.ObjectInputStream
 import java.io.Serializable
 import java.util.*
 
 class MyPath : Path(), Serializable {
     val actions = LinkedList<Action>()
 
-    private fun readObject(inputStream: ObjectInputStream) {
-        inputStream.defaultReadObject()
-
-        val copiedActions = actions.map { it }
-        copiedActions.forEach {
-            it.perform(this)
-        }
-    }
-
     override fun reset() {
         actions.clear()
         super.reset()

draw/src/main/java/chat/rocket/android/draw/widget/Quad.kt

 package chat.rocket.android.draw.widget
 
 import android.graphics.Path
-import java.io.Writer
 
 class Quad(private val x1: Float, private val y1: Float, private val x2: Float, private val y2: Float) : Action {
 
     override fun perform(path: Path) {
         path.quadTo(x1, y1, x2, y2)
     }
-
-    override fun perform(writer: Writer) {
-        writer.write("Q$x1,$y1 $x2,$y2")
-    }
 }
\ No newline at end of file