New dialog assets. Cancelable AlertDialogs may now be canceled by tapping outside.

Change-Id: I061f09bd79a5f2b627fb0f01aba36f37449b849d

core/java/android/app/AlertDialog.java

@@ -28,6 +28,7 @@ import android.util.Log;
 import android.util.TypedValue;
 import android.view.ContextThemeWrapper;
 import android.view.KeyEvent;
+import android.view.MotionEvent;
 import android.view.View;
 import android.view.WindowManager;
 import android.widget.AdapterView;
@@ -81,6 +82,24 @@ public class AlertDialog extends Dialog implements DialogInterface {
         return outValue.resourceId;
     }
 
+    @Override
+    public boolean onTouchEvent(MotionEvent ev) {
+        if (mCancelable) {
+            final View decor = mWindow.getDecorView();
+            final int width = decor.getWidth();
+            final int height = decor.getHeight();
+            final float x = ev.getX();
+            final float y = ev.getY();
+
+            if (mCancelable && (x < 0 || x > width || y < 0 || y > height)) {
+                cancel();
+                return true;
+            }
+        }
+
+        return super.onTouchEvent(ev);
+    }
+
     /**
      * Gets one of the buttons used in the dialog.
      * <p>

core/java/android/widget/ButtonGroup.java

@@ -125,7 +125,7 @@ public class ButtonGroup extends LinearLayout {
 
     @Override
     public void addView(View child, int index, ViewGroup.LayoutParams params) {
-        if (mButtonBackgroundRes != 0) {
+        if (child instanceof Button && mButtonBackgroundRes != 0) {
             // Preserve original padding as we change the background
             final int paddingLeft = child.getPaddingLeft();
             final int paddingRight = child.getPaddingRight();

core/res/res/values/themes.xml

@@ -89,7 +89,7 @@
 
         <item name="buttonStyleToggle">@android:style/Widget.Button.Toggle</item>
 
-        <item name="groupButtonBackground">@android:drawable/btn_default</item>
+        <item name="groupButtonBackground">@null</item>
 
         <!-- List attributes -->
         <item name="listPreferredItemHeight">64dip</item>