been identified for them as running). [CHAR LIMIT=NONE] -->
<string name="running_foreground_services_msg">Tap for details on battery and data usage</string>
+
+ <!-- Warning shown when user input has been blocked due to another app overlaying screen
+ content. Since we don't know what the app is showing on top of the input target, we
+ can't verify user consent. [CHAR LIMIT=NONE] -->
+ <string name="touch_filtered_warning">Because an app is obscuring a permission request, Settings
+ can’t verify your response.</string>
</resources>
import android.os.SystemProperties;
import android.util.Log;
import android.view.LayoutInflater;
+import android.view.MotionEvent;
import android.view.View;
+import android.view.Window;
+import android.view.WindowManager;
import android.widget.CheckBox;
+import android.widget.Toast;
import com.android.internal.app.AlertActivity;
import com.android.internal.app.AlertController;
@Override
public void onCreate(Bundle icicle) {
+ Window window = getWindow();
+ window.addPrivateFlags(WindowManager.LayoutParams.PRIVATE_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
+ window.setType(WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG);
+
super.onCreate(icicle);
if (SystemProperties.getInt("service.adb.tcp.port", 0) == 0) {
ap.mView = checkbox;
setupAlert();
+
+ // adding touch listener on affirmative button - checks if window is obscured
+ // if obscured, do not let user give permissions (could be tapjacking involved)
+ final View.OnTouchListener filterTouchListener = (View v, MotionEvent event) -> {
+ // Filter obscured touches by consuming them.
+ if (((event.getFlags() & MotionEvent.FLAG_WINDOW_IS_OBSCURED) != 0)
+ || ((event.getFlags() & MotionEvent.FLAG_WINDOW_IS_PARTIALLY_OBSCURED) != 0)) {
+ if (event.getAction() == MotionEvent.ACTION_UP) {
+ Toast.makeText(v.getContext(),
+ R.string.touch_filtered_warning,
+ Toast.LENGTH_SHORT).show();
+ }
+ return true;
+ }
+ return false;
+ };
+ mAlert.getButton(BUTTON_POSITIVE).setOnTouchListener(filterTouchListener);
}
private class UsbDisconnectedReceiver extends BroadcastReceiver {