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：

[b]1、定义继承BroadcastReceiver的MyReceiver类：[/b]

/**
* 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) {
//...

}
}

[b]2、在清单文件中注册广播接收器：[/b]

<receiver android:name=".MyReceiver"/>

[b]3、用sendBroadcast()函数发送广播：[/b]

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");
}
}

[b]5.运行测试：[/b]
......