先看一下包名

看红线和黄线

AndroidManiFfest.xml

<receiver android:name=".MyReceiver">  // 和黄线一样

        <action android:name="android.intent.action.MY_BROADCAST"/>

        <category android:name="android.intent.category.DEFAULT" />

</receiver>

MainActivity

Intent intent =new Intent("android.intent.action.MY_BROADCAST");

intent.putExtra("msg", "hello receiver.");

// 下面这句话很重要，8.0以后必须要加这段代码不然收不到广播！！！

intent.setComponent(new ComponentName("com.example.matsonga.broadcast_sms",   //包名。 和红线一样

        "com.example.matsonga.broadcast_sms.MyReceiver"   //MyReceiver文件所在路径。和黄线一样));

sendBroadcast(intent);

MyReceive

String msg = intent.getStringExtra("msg");

Toast.makeText(context,"时间："+new SimpleDateFormat("yyyy-MM-dd hh.mm.ss").format(new Date())

+"\nMyReceiver收到Action名为："+intent.getAction().toString()

+"的广播 \nComponent:"+intent.getComponent()

+"\n传过来的消息:"+msg,

        Toast.LENGTH_LONG).show();