Show icon of package associated with Toast

For all those times you have some random app or background service that posts
a Toast and you have no idea who's posting it.  This adds an icon badge to the
top left corner of the Toast to show the app's icon the Toast belongs to

Change-Id: I82bf23664eea134f3b1f89ad5a99f6be73906ba8
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>

Author: eyosen

core/java/android/widget/Toast.java

@@ -31,7 +31,9 @@
 import android.compat.annotation.EnabledAfter;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.content.Context;
+import android.content.pm.PackageManager;
 import android.content.res.Resources;
+import android.graphics.drawable.Drawable;
 import android.os.Binder;
 import android.os.Build;
 import android.os.Handler;
@@ -44,6 +46,7 @@
 import android.view.View;
 import android.view.WindowManager;
 import android.view.accessibility.IAccessibilityManager;
+import android.widget.ImageView;
 
 import com.android.internal.annotations.GuardedBy;
 
@@ -496,6 +499,17 @@ public static Toast makeText(@NonNull Context context, @Nullable Looper looper,
         } else {
             Toast result = new Toast(context, looper);
             View v = ToastPresenter.getTextToastView(context, text);
+            ImageView appIcon = (ImageView) v.findViewById(android.R.id.icon);
+            if (appIcon != null) {
+                PackageManager pm = context.getPackageManager();
+                Drawable icon = null;
+                try {
+                    icon = pm.getApplicationIcon(context.getPackageName());
+                } catch (PackageManager.NameNotFoundException e) {
+                    // nothing to do
+                }
+                appIcon.setImageDrawable(icon);
+            }
             result.mNextView = v;
             result.mDuration = duration;
 

core/res/res/layout/transient_notification.xml

@@ -18,24 +18,33 @@
 */
 -->
 
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
-    android:background="?android:attr/toastFrameBackground">
+    android:clipChildren="false">
 
     <TextView
         android:id="@android:id/message"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_weight="1"
-        android:layout_marginHorizontal="24dp"
-        android:layout_marginVertical="15dp"
+        android:paddingHorizontal="24dp"
+        android:paddingVertical="15dp"
         android:layout_gravity="center_horizontal"
+        android:layout_marginTop="-16dp"
+        android:layout_marginStart="-16dp"
+        android:layout_toRightOf="@android:id/icon"
+        android:layout_below="@android:id/icon"
         android:textAppearance="@style/TextAppearance.Toast"
         android:textColor="@color/primary_text_default_material_light"
+        android:background="?android:attr/toastFrameBackground"
         />
 
-</LinearLayout>
-
+    <ImageView
+        android:id="@android:id/icon"
+        android:layout_width="24dp"
+        android:layout_height="24dp"
+        android:layout_alignParentTop="true"
+        android:layout_alignParentStart="true"/>
 
+</RelativeLayout>