1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16 17 package com.android.settings.core; 18 19 import android.app.AppOpsManager; 20 import android.content.Context; 21 import android.os.Binder; 22 import android.os.IBinder; 23 24 public class TouchOverlayManager { 25 26 private final Context mContext; 27 private final IBinder mToken = new Binder(); 28 29 public TouchOverlayManager(Context context) { 30 mContext = context; 31 } 32 33 public void setOverlayAllowed(boolean allowed) { 34 final AppOpsManager aom = mContext.getSystemService(AppOpsManager.class); 35 if (aom != null) { 36 aom.setUserRestriction(AppOpsManager.OP_SYSTEM_ALERT_WINDOW, !allowed, mToken); 37 aom.setUserRestriction(AppOpsManager.OP_TOAST_WINDOW, !allowed, mToken); 38 } 39 } 40 } 41