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  • BroadcastReceiver简单应用实例

        BroadcastReceiver是android四大组件之一,主要用于接收广播,它的简单实现方法如下:
    1、定义继承BroadcastReceiver的MyReceiver类:
    /**
     * Created by Haoye on 2016/3/7.
     * Copyright © 2016 Haoye All Rights Reserved
     */
    public class MyReceiver extends BroadcastReceiver {
        private static final String TAG = "MyReceiver";
    
        @Override
        public void onReceive(Context context, Intent intent) {
            //...        
           
        }
    }
    2、在清单文件中注册广播接收器:
    <receiver android:name=".MyReceiver"/>
    3、用sendBroadcast()函数发送广播:
    Intent intent = new Intent(MainActivity.this, MyReceiver.class);
    intent.setAction("music.play");
    
    sendBroadcast(intent);


    4、在onReceive()函数中接收广播:
    修改 onReceive()函数:
        @Override
        public void onReceive(Context context, Intent intent) {
            Log.i(TAG, "onReceive");
            if ("music.play".equalsIgnoreCase(intent.getAction())) {
                Log.e(TAG, "getAction");
            }
        }
    5.运行测试:
    ......






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  • 原文地址:https://www.cnblogs.com/laishenghao/p/5252387.html
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