BroadCastReceiver

  //无序广播
        btn_broad.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //发送一个无序广播
                Intent intent = new Intent();
                intent.setAction("com.zxy1");

                Bundle bundle = new Bundle();
                bundle.putInt("msg",123);

                intent.putExtras(bundle);
                sendBroadcast(intent);//标准广播
            }
        });



public class MyReceiver extends BroadcastReceiver {
    private static final String TAG = "MyReceiver";
    //创建一个广播接受者
    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO: This method is called when the BroadcastReceiver is receiving
        Log.i(TAG, "onReceive: ");
        //频道
        // an Intent broadcast.
        String action = intent.getAction();
        Bundle extras = intent.getExtras();
        if (action.equals("com.zxy.broad")){
            Log.i(TAG, "onReceive: "+extras.getString("name"));
        }else if(action.equals("com.zxy1")){
            Log.i(TAG, "onReceive: "+extras.getString("name"));
        }

    }
}



public class MyReceiver2 extends BroadcastReceiver {
    private static final String TAG = "MyReceiver2";
    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO: This method is called when the BroadcastReceiver is receiving
        // an Intent broadcast.
        Bundle extras = intent.getExtras();
        String name = extras.getString("name");
        Log.i(TAG, "onReceive: "+name);
        //判断是否是有序U广播
        if (isOrderedBroadcast()){
            abortBroadcast();//截断广播,终止
        }
    }
}



public class MyReceiver2 extends BroadcastReceiver {
    private static final String TAG = "MyReceiver2";
    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO: This method is called when the BroadcastReceiver is receiving
        // an Intent broadcast.
        Bundle extras = intent.getExtras();
        String name = extras.getString("name");
        Log.i(TAG, "onReceive: "+name);
        //判断是否是有序U广播
        if (isOrderedBroadcast()){
            abortBroadcast();//截断广播,终止
        }
    }
}



public class Main2Activity extends AppCompatActivity {
    private   MyReceiver myReceiver;
    private Button btnm_send;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        btnm_send=findViewById(R.id.btn_send);

        //动态注册广播接受者
        myReceiver= new MyReceiver();
        //过滤器
        IntentFilter intentFilter = new IntentFilter();
        intentFilter.addAction("com.zxy2");
        registerReceiver(myReceiver,intentFilter);

        //发送
        btnm_send.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent();
                intent.setAction("com.zxy2");
                sendBroadcast(intent);
            }
        });

    }
    //注销
    @Override
    protected void onDestroy() {
        super.onDestroy();
        unregisterReceiver(myReceiver);
    }
}



public class Main3Activity extends AppCompatActivity {
    private Button btn_send2;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main3);
        //初始化控件
        btn_send2=findViewById(R.id.btn_send2);

        btn_send2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent();
                intent.setAction("com.zxy3");
                sendBroadcast(intent);
            }
        });

    }
}




public class MyReceiver3 extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO: This method is called when the BroadcastReceiver is receiving
        // an Intent broadcast.
        //发送通知
        NotificationManager manager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
        Notification.Builder builder = new Notification.Builder(context);
        builder.setSmallIcon(R.mipmap.ic_launcher).setContentTitle("zxy").setContentText("nei");

//        PendingIntent.getActivity(getActivity)
        Notification build = builder.build();

        //发送
        manager.notify(1,build);

    }
}



<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.gao_1_0304_broad">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <receiver
            android:name=".MyReceiver3"
            android:enabled="true"
            android:exported="true">
            <intent-filter>
                <action android:name="com.zxy3"/>
            </intent-filter>

        </receiver>

        <activity android:name=".Main3Activity" />
        <activity android:name=".Main2Activity" />

        <receiver
            android:name=".MyReceiver2"
            android:enabled="true"
            android:exported="true">
            <intent-filter android:priority="900">
                <action android:name="com.zxy1" />
            </intent-filter>
        </receiver>
        <receiver
            android:name=".MyReceiver"
            android:enabled="true"
            android:exported="true">
            <intent-filter android:priority="1000">
                <action android:name="com.zxy.braod" />
                <action android:name="com.zxy1" />
            </intent-filter>
        </receiver>

        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>