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      1 /*
      2  * Copyright (C) 2016 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.datetime;
     18 
     19 import android.content.BroadcastReceiver;
     20 import android.content.Context;
     21 import android.content.Intent;
     22 import android.content.IntentFilter;
     23 
     24 import com.android.settingslib.core.lifecycle.LifecycleObserver;
     25 import com.android.settingslib.core.lifecycle.events.OnPause;
     26 import com.android.settingslib.core.lifecycle.events.OnResume;
     27 
     28 public class TimeChangeListenerMixin extends BroadcastReceiver
     29         implements LifecycleObserver, OnPause, OnResume {
     30 
     31     private final Context mContext;
     32     private final UpdateTimeAndDateCallback mCallback;
     33 
     34     public TimeChangeListenerMixin(Context context, UpdateTimeAndDateCallback callback) {
     35         mContext = context;
     36         mCallback = callback;
     37     }
     38 
     39     @Override
     40     public void onResume() {
     41         // Register for time ticks and other reasons for time change
     42         final IntentFilter filter = new IntentFilter();
     43         filter.addAction(Intent.ACTION_TIME_TICK);
     44         filter.addAction(Intent.ACTION_TIME_CHANGED);
     45         filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
     46 
     47         mContext.registerReceiver(this, filter, null, null);
     48     }
     49 
     50     @Override
     51     public void onPause() {
     52         mContext.unregisterReceiver(this);
     53     }
     54 
     55     @Override
     56     public void onReceive(Context context, Intent intent) {
     57         if (mCallback != null) {
     58             mCallback.updateTimeAndDateDisplay(mContext);
     59         }
     60     }
     61 }
     62