andriod之有序广播

来源：互联网发布：淘宝旗舰店是正品吗编辑：程序博客网时间：2024/06/08 19:26

主显示布局以及代码：

(总结：1、这里只是通过设置相同的action的name来启动多个接受者，通过设置的接受者等级，按顺序执行相应的reciever，2、还有就是可以中途传递参数值，3、还有就是要调用sendOrderedBroadcast这个方法)

activity_main.xml：

Activity的java代码：

package com.example.day0708;

import android.support.v7.app.ActionBarActivity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;

public class MainActivity extends ActionBarActivity {
BroadcastReceiver mReciever;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
registerReciever();
startFirstBroadcast();
}

private void startFirstBroadcast() {
// TODO Auto-generated method stub
Intent intent = new Intent();
intent.putExtra("text", "传递的值,主Activity");
intent.setAction("com.litsoft.day0708.startReciver");
sendOrderedBroadcast(intent, null);
}

private void registerReciever() {
// TODO Auto-generated method stub
mReciever = new ThirdReciever();
IntentFilter filter = new IntentFilter("com.litsoft.day0708.startReciver");
filter.setPriority(600);
registerReceiver(mReciever, filter);
}
class ThirdReciever extends BroadcastReceiver{

@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub

Log.i("main", "第三个Receiver；接受参数的值："+intent.getStringExtra("text"));
}

}

}

第一个reciever的java代码：

package com.example.day0708;

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

public class FirstReciever extends BroadcastReceiver{

@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
Log.i("main", "第一个Receiver,；接受参数的值："+intent.getStringExtra("text"));
}

}

第二个reciever的java代码：

package com.example.day0708;

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

public class SecondReciever extends BroadcastReceiver{

@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
Log.i("main", "第二个Receiver；接受参数的值："+intent.getStringExtra("text"));
}

}

清单列表：AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.day0708"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />

<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="com.example.day0708.FirstReciever">
<intent-filter android:priority="800" >
<action android:name="com.litsoft.day0708.startReciver"/>
</intent-filter>
</receiver>
<receiver android:name="com.example.day0708.SecondReciever">
<intent-filter android:priority="700">
<action android:name="com.litsoft.day0708.startReciver"/>
</intent-filter>
</receiver>
</application>

</manifest>

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