有序广播拦截

通过sendOrderedBroadcast()方法发送一条有序广播

1.编写用户交互界面：

<?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:background="@drawable/stitch_one"

    tools:context="bzu.edu.cn.guangbo.MainActivity">

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_centerHorizontal="true"

        android:layout_marginTop="80dp"

        android:onClick="send"

        android:text="发送有序广播"

        android:paddingLeft="5dp"

        android:paddingRight="5dp"

        android:background="#FBFBFF"

        android:textSize="20sp" />

</RelativeLayout>

2点击发送有序广播按钮时事件处理

package bzu.edu.cn.guangbo;

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();

        //定义广播的事件类型

        intent.setAction("Intercept_Stitch");

        //发送广播

        sendOrderedBroadcast(intent,null);

    }

}

3.创建广播接收者

package bzu.edu.cn.guangbo;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.util.Log;

public class MyBroadcastReceiverOne extends BroadcastReceiver {

    public MyBroadcastReceiverOne() {

    }

    @Override

    public void onReceive(Context context, Intent intent) {

        // TODO: This method is called when the BroadcastReceiver is receiving

        // an Intent broadcast.

        //throw new UnsupportedOperationException("Not yet implemented");

        Log.i("MyBroadcastReceiverOne","自定义的广播者one，接收到了广播事件");

    }

}

package bzu.edu.cn.guangbo;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.util.Log;

public class MyBroadcastReceiverTwo extends BroadcastReceiver {

    public MyBroadcastReceiverTwo() {

    }

    @Override

    public void onReceive(Context context, Intent intent) {

        // TODO: This method is called when the BroadcastReceiver is receiving

        // an Intent broadcast.

        //throw new UnsupportedOperationException("Not yet implemented");

        Log.i("MyBroadcastReceiverTwo","自定义的广播者two，接收到了广播事件");

    }

}

 

 

 

package bzu.edu.cn.guangbo;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.util.Log;

public class MyBroadcastReceiverThree extends BroadcastReceiver {

    public MyBroadcastReceiverThree() {

    }

    @Override

    public void onReceive(Context context, Intent intent) {

        // TODO: This method is called when the BroadcastReceiver is receiving

        // an Intent broadcast.

        //throw new UnsupportedOperationException("Not yet implemented");

        Log.i("MyBroadcastReceiverThree","自定义的广播者three，接收到了广播事件");

    }

}

清单文件代码：

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="bzu.edu.cn.guangbo">

    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name"

        android:supportsRtl="true"

        android:theme="@style/AppTheme">

        <activity android:name=".MainActivity">

            <intent-filter>

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

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

            </intent-filter>

        </activity>

        <receiver

            android:name=".MyBroadcastReceiverOne"

            android:enabled="true"

            android:exported="true" >

            <intent-filter android:priority="1000">

               <action android:name="Intercept_Stitch">

               </action>

            </intent-filter>

            </receiver>

        <receiver

            android:name=".MyBroadcastReceiverTwo"

            android:enabled="true"

            android:exported="true" >

            <intent-filter android:priority="200">

                <action android:name="Intercept_Stitch">

                </action>

            </intent-filter>

        </receiver>

        <receiver

            android:name=".MyBroadcastReceiverThree"

            android:enabled="true"

            android:exported="true">

            <intent-filter android:priority="600">

                <action android:name="Intercept_Stitch">

                </action>

            </intent-filter>

        </receiver>

    </application>

</manifest>

运行界面图如下：