enable pip support for CallNotificationActivity

Signed-off-by: Marcel Hibbe <dev@mhibbe.de>

app/src/main/AndroidManifest.xml

@@ -134,6 +134,7 @@
         <activity
             android:name=".activities.CallNotificationActivity"
             android:theme="@style/AppTheme.CallLauncher"
+            android:supportsPictureInPicture="true"
             android:configChanges="screenSize|smallestScreenSize|screenLayout|orientation"
             android:launchMode="singleTask"
             android:taskAffinity=".call"

app/src/main/java/com/nextcloud/talk/activities/CallActivity.java

@@ -2340,33 +2340,6 @@ public class CallActivity extends BaseActivity {
         }
     }
 
-    public void updateUiForPipMode(){
-        RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
-                                                                             ViewGroup.LayoutParams.WRAP_CONTENT);
-        params.setMargins(0,0,0, 0);
-        binding.gridview.setLayoutParams(params);
-
-
-        binding.callControls.setVisibility(View.GONE);
-        binding.callInfosLinearLayout.setVisibility(View.GONE);
-        binding.selfVideoViewWrapper.setVisibility(View.GONE);
-        binding.callStates.callStateRelativeLayout.setVisibility(View.GONE);
-
-        binding.selfVideoRenderer.release();
-    }
-
-    public void updateUiForNormalMode(){
-        if (isVoiceOnlyCall) {
-            binding.callControls.setVisibility(View.VISIBLE);
-        } else {
-            binding.callControls.setVisibility(View.INVISIBLE); // animateCallControls needs this to be invisible for a check.
-        }
-        initViews();
-
-        binding.callInfosLinearLayout.setVisibility(View.VISIBLE);
-        binding.selfVideoViewWrapper.setVisibility(View.VISIBLE);
-    }
-
     private String getDescriptionForCallType() {
         String appName = getResources().getString(R.string.nc_app_product_name);
         if (isVoiceOnlyCall) {
@@ -2474,6 +2447,44 @@ public class CallActivity extends BaseActivity {
             .build();
     }
 
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    @Override
+    public void onPictureInPictureModeChanged(boolean isInPictureInPictureMode, Configuration newConfig) {
+        super.onPictureInPictureModeChanged(isInPictureInPictureMode, newConfig);
+        isInPipMode = isInPictureInPictureMode;
+        if (isInPictureInPictureMode) {
+            updateUiForPipMode();
+        } else {
+            updateUiForNormalMode();
+        }
+    }
+    public void updateUiForPipMode(){
+        RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
+                                                                             ViewGroup.LayoutParams.WRAP_CONTENT);
+        params.setMargins(0,0,0, 0);
+        binding.gridview.setLayoutParams(params);
+
+
+        binding.callControls.setVisibility(View.GONE);
+        binding.callInfosLinearLayout.setVisibility(View.GONE);
+        binding.selfVideoViewWrapper.setVisibility(View.GONE);
+        binding.callStates.callStateRelativeLayout.setVisibility(View.GONE);
+
+        binding.selfVideoRenderer.release();
+    }
+
+    public void updateUiForNormalMode(){
+        if (isVoiceOnlyCall) {
+            binding.callControls.setVisibility(View.VISIBLE);
+        } else {
+            binding.callControls.setVisibility(View.INVISIBLE); // animateCallControls needs this to be invisible for a check.
+        }
+        initViews();
+
+        binding.callInfosLinearLayout.setVisibility(View.VISIBLE);
+        binding.selfVideoViewWrapper.setVisibility(View.VISIBLE);
+    }
+
     public void onConfigurationChanged(Configuration newConfig) {
         super.onConfigurationChanged(newConfig);
         eventBus.post(new ConfigurationChangeEvent());
@@ -2502,18 +2513,6 @@ public class CallActivity extends BaseActivity {
         }
     }
 
-    @RequiresApi(api = Build.VERSION_CODES.O)
-    @Override
-    public void onPictureInPictureModeChanged(boolean isInPictureInPictureMode, Configuration newConfig) {
-        super.onPictureInPictureModeChanged(isInPictureInPictureMode, newConfig);
-        isInPipMode = isInPictureInPictureMode;
-        if (isInPictureInPictureMode) {
-            updateUiForPipMode();
-        } else {
-            updateUiForNormalMode();
-        }
-    }
-
     private class SelfVideoTouchListener implements View.OnTouchListener {
 
         @SuppressLint("ClickableViewAccessibility")

app/src/main/java/com/nextcloud/talk/activities/CallNotificationActivity.java

@@ -21,8 +21,10 @@
 package com.nextcloud.talk.activities;
 
 import android.annotation.SuppressLint;
+import android.app.PictureInPictureParams;
 import android.content.Context;
 import android.content.Intent;
+import android.content.res.Configuration;
 import android.graphics.Bitmap;
 import android.graphics.Color;
 import android.graphics.drawable.BitmapDrawable;
@@ -30,10 +32,12 @@ import android.graphics.drawable.ColorDrawable;
 import android.media.AudioAttributes;
 import android.media.MediaPlayer;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 import android.text.TextUtils;
 import android.util.Log;
+import android.util.Rational;
 import android.view.View;
 
 import com.bluelinelabs.logansquare.LoganSquare;
@@ -79,6 +83,7 @@ import java.util.List;
 import javax.inject.Inject;
 
 import androidx.annotation.Nullable;
+import androidx.annotation.RequiresApi;
 import androidx.constraintlayout.widget.ConstraintLayout;
 import autodagger.AutoInjector;
 import butterknife.OnClick;
@@ -118,6 +123,7 @@ public class CallNotificationActivity extends BaseActivity {
     private boolean leavingScreen = false;
     private Handler handler;
     private CallNotificationActivityBinding binding;
+    private Boolean isInPipMode = false;
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -357,7 +363,7 @@ public class CallNotificationActivity extends BaseActivity {
                         binding.avatarImageView.getHierarchy().setImage(new BitmapDrawable(bitmap), 100,
                                                                 true);
                         if (getResources() != null) {
-                            binding.incomingTextRelativeLayout.setBackground(
+                            binding.incomingCallRelativeLayout.setBackground(
                                     getResources().getDrawable(R.drawable.incoming_gradient));
                         }
 
@@ -473,4 +479,51 @@ public class CallNotificationActivity extends BaseActivity {
             }
         }
     }
+
+    public void onBackPressed() {
+        enterPipMode();
+    }
+
+    public void onUserLeaveHint() {
+        enterPipMode();
+    }
+
+    void enterPipMode() {
+//        enableKeyguard();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            enterPictureInPictureMode(getPipParams());
+        } else {
+            finish();
+        }
+    }
+
+    @RequiresApi(Build.VERSION_CODES.O)
+    public PictureInPictureParams getPipParams() {
+        Rational pipRatio = new Rational(300, 500);
+        return new PictureInPictureParams.Builder()
+            .setAspectRatio(pipRatio)
+            .build();
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    @Override
+    public void onPictureInPictureModeChanged(boolean isInPictureInPictureMode, Configuration newConfig) {
+        super.onPictureInPictureModeChanged(isInPictureInPictureMode, newConfig);
+        isInPipMode = isInPictureInPictureMode;
+        if (isInPictureInPictureMode) {
+            updateUiForPipMode();
+        } else {
+            updateUiForNormalMode();
+        }
+    }
+
+    public void updateUiForPipMode(){
+        binding.callAnswerButtons.setVisibility(View.INVISIBLE);
+        binding.incomingCallRelativeLayout.setVisibility(View.INVISIBLE);
+    }
+
+    public void updateUiForNormalMode(){
+        binding.callAnswerButtons.setVisibility(View.VISIBLE);
+        binding.incomingCallRelativeLayout.setVisibility(View.VISIBLE);
+    }
 }

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

@@ -35,6 +35,7 @@
         tools:srcCompat="@tools:sample/backgrounds/scenic" />
 
     <LinearLayout
+        android:id="@+id/callAnswerButtons"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_alignParentBottom="true"
@@ -75,7 +76,7 @@
     </LinearLayout>
 
     <RelativeLayout
-        android:id="@+id/incomingTextRelativeLayout"
+        android:id="@+id/incomingCallRelativeLayout"
         android:layout_width="match_parent"
         android:layout_height="wrap_content">