Android Ordered Broadcast 有序广播

代码设置IntentFilter：

        IntentFilter intentFilter = new IntentFilter();        intentFilter.setPriority(15);        intentFilter.addAction("shortcut.song.com.myapplication.MY_BROADCAST");        intentFilter.addCategory("android.intent.category.LAUNCHER");

MyBroadcast .java

package shortcut.song.com.myapplication;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.os.Bundle;import android.widget.Toast;/** * Created by Administrator on 2017/8/16 0016. */public class MyBroadcast extends BroadcastReceiver {    @Override    public void onReceive(Context context, Intent intent) {        Toast.makeText(context, "接收到的Intent Action为："+intent.getAction() +                        " \n  消息内容:"+intent.getStringExtra("msg")                        , Toast.LENGTH_SHORT).show();        Bundle bundle = new Bundle();        bundle.putString("first", "Fisrt BroadcastReceiver set message.");        // 将bnudle放入结果中        setResultExtras(bundle);        // 取消Broadcast的继续传播        //abortBroadcast();    }}

MyBroadcastReceiver2 .java

package shortcut.song.com.myapplication;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.os.Bundle;import android.widget.Toast;/** * Created by Administrator on 2017/8/17 0017. */public class MyBroadcastReceiver2 extends BroadcastReceiver {    @Override    public void onReceive(Context context, Intent intent) {        Bundle bundle = getResultExtras(true);        // 解析前一个BroadcastReciver所存入的key为fisrt的消息        String first = bundle.getString("first");        Toast.makeText(context,"上一个Broadcast存入的消息为：" + first, Toast.LENGTH_SHORT).show();    }}

AndroidManifest.xml

         <receiver android:name=".MyBroadcast">            <intent-filter android:priority="20">                <action android:name="shortcut.song.com.myapplication.MY_BROADCAST" />            </intent-filter>        </receiver>        <receiver android:name=".MyBroadcastReceiver2">            <intent-filter android:priority="0">                <action android:name="shortcut.song.com.myapplication.MY_BROADCAST" />            </intent-filter>        </receiver>

package shortcut.song.com.myapplication;import android.content.Intent;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;public class OrderedBroadcastActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_ordered_broadcast);    }    public void sendOrderedBroadCast(View v) {        Intent intent = new Intent();        intent.setAction("shortcut.song.com.myapplication.MY_BROADCAST");        intent.putExtra("msg", "First message.");        // 发送有序广播        sendOrderedBroadcast(intent, null);    }}

运行效果：