Merge pull request #2672 from deltachat/adb/issue-1022

keep screen on while playing voice message

src/org/thoughtcrime/securesms/audio/AudioSlidePlayer.java

@@ -1,12 +1,15 @@
 package org.thoughtcrime.securesms.audio;
 
+import android.app.Activity;
 import android.content.Context;
+import android.content.ContextWrapper;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Handler;
 import android.os.Message;
 import android.util.Log;
 import android.util.Pair;
+import android.view.WindowManager;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -151,6 +154,7 @@ public class AudioSlidePlayer {
               setPlaying(AudioSlidePlayer.this);
             }
 
+            keepScreenOn(true);
             notifyOnStart();
             progressEventHandler.sendEmptyMessage(0);
             break;
@@ -163,6 +167,7 @@ public class AudioSlidePlayer {
               mediaPlayer = null;
             }
 
+            keepScreenOn(false);
             notifyOnStop();
             progressEventHandler.removeMessages(0);
         }
@@ -200,6 +205,7 @@ public class AudioSlidePlayer {
   public synchronized void stop() {
     Log.i(TAG, "Stop called!");
 
+    keepScreenOn(false);
     removePlaying(this);
 
     if (this.mediaPlayer != null) {
@@ -285,6 +291,16 @@ public class AudioSlidePlayer {
     };
   }
 
+  public void keepScreenOn(boolean keepOn) {
+    if (context instanceof Activity) {
+      if (keepOn) {
+        ((Activity) context).getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+      } else {
+        ((Activity) context).getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+      }
+    }
+  }
+
   private synchronized static void setPlaying(@NonNull AudioSlidePlayer player) {
     if (playing.isPresent() && playing.get() != player) {
       playing.get().notifyOnStop();