VpnDialogs: filter obscured touches

Change-Id: Ifcc919c36006c88e36363f5160f9334df0cf7e5b

packages/VpnDialogs/res/layout/confirm.xml

@@ -52,6 +52,7 @@
                 android:layout_height="wrap_content"
                 android:text="@string/accept"
                 android:textSize="20sp"
+                android:filterTouchesWhenObscured="true"
                 android:checked="false"/>
     </LinearLayout>
 </ScrollView>

packages/VpnDialogs/src/com/android/vpndialogs/ConfirmDialog.java

@@ -78,6 +78,7 @@ public class ConfirmDialog extends AlertActivity implements
             getWindow().setCloseOnTouchOutside(false);
             mButton = mAlert.getButton(DialogInterface.BUTTON_POSITIVE);
             mButton.setEnabled(false);
+            mButton.setFilterTouchesWhenObscured(true);
         } catch (Exception e) {
             Log.e(TAG, "onResume", e);
             finish();