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

Author: 0xD34D

core/java/android/widget/Toast.java

@@ -21,9 +21,11 @@
 import android.app.INotificationManager;
 import android.app.ITransientNotification;
 import android.content.Context;
+import android.content.pm.PackageManager;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.graphics.PixelFormat;
+import android.graphics.drawable.Drawable;
 import android.os.Handler;
 import android.os.RemoteException;
 import android.os.ServiceManager;
@@ -400,6 +402,17 @@ public void handleShow() {
                 if (context == null) {
                     context = mView.getContext();
                 }
+
+                ImageView appIcon = (ImageView) mView.findViewById(android.R.id.icon);
+                if (appIcon != null) {
+                    PackageManager pm = context.getPackageManager();
+                    try {
+                        Drawable icon = pm.getApplicationIcon(packageName);
+                        appIcon.setImageDrawable(icon);
+                    } catch (PackageManager.NameNotFoundException e) {
+                        // Empty
+                    }
+                }
                 mWM = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE);
                 // We can resolve the Gravity here by using the Locale for getting
                 // the layout direction

core/res/res/layout/transient_notification.xml

@@ -18,24 +18,35 @@
 */
 -->
 
-<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_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/bright_foreground_dark"
         android:shadowColor="#BB000000"
         android:shadowRadius="2.75"
+        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>