content: // Copyright 2016 Google Inc.
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //      http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  package com.example.android.globalactionbarservice;
  
  import android.accessibilityservice.AccessibilityService;
  import android.accessibilityservice.GestureDescription;
  import android.graphics.Path;
  import android.graphics.PixelFormat;
  import android.media.AudioManager;
  import android.view.Gravity;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.view.WindowManager;
  import android.view.accessibility.AccessibilityEvent;
  import android.view.accessibility.AccessibilityNodeInfo;
  import android.widget.Button;
  import android.widget.FrameLayout;
  
  import java.util.ArrayDeque;
  import java.util.Deque;
  
  public class GlobalActionBarService extends AccessibilityService {
  
      @Override
      public void onAccessibilityEvent(AccessibilityEvent event) {
  
      }
  
      @Override
      public void onInterrupt() {
  
      }
  }
  