广播接收者之有序广播

  实现界面如下：

1.首先建立布局文件main_activity.xml文件：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.yx.myapplication.MainActivity">
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:onClick="send"
        android:text="发送有序广播"/>
</RelativeLayout>

2.在main activity编写交互代码：

package com.example.yx.myapplication;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
    public void send(View view){
        Intent intent=new Intent();
        intent.setAction("www.itcast.cn");
        sendOrderedBroadcast(intent,null);
    }
}

3.添加广播接收者，依次建立三个：

package com.example.yx.myapplication;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

public class MyReceiver01 extends BroadcastReceiver {
    public MyBroadcastReceiverOne() {
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        Log.i("MyBroadcastReceiver01","自定义的广播接收者01,接受到了");
    }
}

package com.example.yx.myapplication;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

public class MyReceiver02extends BroadcastReceiver {
    public MyBroadcastReceiverOne() {
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        Log.i("MyBroadcastReceiver01","自定义的广播接收者02,接受到了");
    }
}

package com.example.yx.myapplication;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

public class MyReceiver03 extends BroadcastReceiver {
    public MyBroadcastReceiverOne() {
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        Log.i("MyBroadcastReceiver01","自定义的广播接收者03,接受到了");
    }
}

4.配置清单文件：

 <receiver
            android:name=".MyReceiver01"
            android:enabled="true"
            android:exported="true">
            <intent-filter android:priority="1000">
                <action android:name="Intercept_Stitch"></action>
            </intent-filter>
        </receiver>
        <receiver
            android:name=".MyReceiver02"
            android:enabled="true"
            android:exported="true">
            <intent-filter android:priority="200">
                <action android:name="Intercept_Stitch"></action>
            </intent-filter>
        </receiver>
        <receiver
            android:name=".MyReceiver03"
            android:enabled="true"
            android:exported="true">
            <intent-filter android:priority="600">
                <action android:name="Intercept_Stitch"></action>
            </intent-filter>
        </receiver>