public class MyBroadcast extends BroadcastReceiver {
    @Override
    // 當(dāng)廣播接收者接收廣播成功，此方法會(huì)自動(dòng)回調(diào)執(zhí)行，在該方法中實(shí)現(xiàn)廣播接收者的相關(guān)操作
    public void onReceive(Context context, Intent intent) {
    }
}

<receiver
   android:name=".utils.MyBroadcast"
   android:enabled="true"
   android:exported="true">
   <intent-filter>
   	<action>cn.com.hello</action> 
   </intent-filter>
</receiver>

<receiver
   android:name=".utils.MyBroadcast"
   android:enabled="true"
   android:exported="true">
</receiver>

public class BroadcastReceiverActivity extends AppCompatActivity {
    private MyBroadcast myBroadcast;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_broadcast_receiver);
        // 創(chuàng)建廣播接收者對(duì)象
        myBroadcast = new MyBroadcast();
        String action = "cn.com.hello"
        // 創(chuàng)建意圖過(guò)濾器
        IntentFilter intentFilter = new IntentFilter();
        // 設(shè)置要過(guò)濾的廣播
        intentFilter.addAction(action );
        // 注冊(cè)廣播接收者
        registerReceiver(myBroadcast,intentFilter);
    }
    // 廣播接收者是稀缺資源，使用結(jié)束要注銷，可以在app銷毀的階段進(jìn)行注銷
    @Override
    protected void onDestroy() {
        super.onDestroy();
        unregisterReceiver(myBroadcast);
    }
}

btn = findViewById(R.id.btn);
btn.setOnClickListener(new View.OnClickListener() {
  @Override
  public void onClick(View view) {
      // 發(fā)送一次廣播
      Intent intent = new Intent();
      intent.putExtra("info","hello,who are you ?");
      // 設(shè)置廣播的action，相當(dāng)于廣播的名稱
      String action = "cn.com.hello"
      intent.setAction(action);
      // 發(fā)送廣播，廣播會(huì)發(fā)送到信息中心，由信息中心負(fù)責(zé)找到這個(gè)廣播的訂閱者并將廣播的意圖傳過(guò)去
      // 無(wú)序廣播
		 sendBroadcast(intent);
  }
});

public class MyBroadcast extends BroadcastReceiver {
    @Override
    // 當(dāng)廣播接收者接收廣播成功，此方法會(huì)自動(dòng)回調(diào)執(zhí)行
    public void onReceive(Context context, Intent intent) {
        String msg = intent.getStringExtra("info");
			 Log.v("msg","接收到了廣播信息！");
    }
}

myBroadcast = new MyBroadcast();
String action = "cn.com.hello"
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(action); 
registerReceiver(myBroadcast,intentFilter);

Intent intent = new Intent();
intent.putExtra("info","hello,who are you ?");
String action = "cn.com.hello"
intent.setAction(action);
// 有序廣播
sendOrderedBroadcast(intent,null);

public class MyBroadcast extends BroadcastReceiver {
    @Override
    // 當(dāng)廣播接收者接收廣播成功，此方法會(huì)自動(dòng)回調(diào)執(zhí)行
    public void onReceive(Context context, Intent intent) {
        String msg = intent.getStringExtra("info");
			 Log.v("msg","接收到了廣播信息！");
			 // 截?cái)鄰V播的發(fā)送，之后的廣播接收者就接收不到廣播了
        abortBroadcast();
    }
}

myBroadcast = new MyBroadcast();
String action = "cn.com.hello"
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(action); 
// 設(shè)置優(yōu)先級(jí)
intentFilter.setPriority(8);
// 注冊(cè)廣播接收者
registerReceiver(myBroadcast,intentFilter);