Android之BroadcastReceiver 监听系统广播

绑定广播有两种方式

一.配置文件绑定，在程序未启动也能监听

二.代码方式绑定，在程序启动后才能监听

 

1.绑定和取消绑定广播

public class MainActivity extends Activity {private Button registerButton=null;private Button unRegisterButton=null;private SMSReceiver smsReceiver=null;private static final String SMS_ACTION="android.provider.Telephony.SMS_RECEIVED";@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);registerButton=(Button)findViewById(R.id.registerButton);unRegisterButton=(Button)findViewById(R.id.unRegisterButton);registerButton.setOnClickListener(new RegisterReceiverListener());unRegisterButton.setOnClickListener(new UnRegisterReceiverListener());/*if (savedInstanceState == null) {getSupportFragmentManager().beginTransaction().add(R.id.container, new PlaceholderFragment()).commit();}*/}class RegisterReceiverListener implements OnClickListener{@Overridepublic void onClick(View v) {System.out.println("registerReceiver");//生成一个BroadcastReceiver对象smsReceiver=new SMSReceiver();//生成一个IntentFilter对象IntentFilter filter=new IntentFilter();//为IntentFilter添加一个Action
            filter.addAction(SMS_ACTION);MainActivity.this.registerReceiver(smsReceiver, filter);}}class UnRegisterReceiverListener implements OnClickListener{@Overridepublic void onClick(View v) {System.out.println("unregisterReceiver");MainActivity.this.unregisterReceiver(smsReceiver);}}

 

2.广播类

package com.example.mars_1800_broadcastreceiver02;import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.gsm.SmsMessage;public class SMSReceiver extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent) {System.out.println("receive message");//接收Intent对象当中的数据Bundle bundle=intent.getExtras();//在Bundle对象中有一个属性为pdus，该属性为Object数组Object[] myOBJpdus=(Object[])bundle.get("pdus");//创建一个SmsMessage类型的数组SmsMessage[] messages=new SmsMessage[myOBJpdus.length];System.out.println(messages.length);for (int i = 0; i < myOBJpdus.length; i++) {//使用Object数组中的对象创建SmsMessage对象messages[i]=SmsMessage.createFromPdu((byte[])myOBJpdus[i]);//获取到信息对象的内容
            System.out.println(messages[i].getDisplayOriginatingAddress());System.out.println(messages[i].getDisplayMessageBody());}}
}

 

3.加入相应权限

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"package="com.example.mars_1800_broadcastreceiver02"android:versionCode="1"android:versionName="1.0" ><uses-sdkandroid:minSdkVersion="8"android:targetSdkVersion="19" /><applicationandroid:allowBackup="true"android:icon="@drawable/ic_launcher"android:label="@string/app_name"android:theme="@style/AppTheme" ><activityandroid:name="com.example.mars_1800_broadcastreceiver02.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="SMSReceiver" ><intent-filter><action android:name="android.provider.Telephony.SMS_RECEIVED" /></intent-filter></receiver> --></application><!--  接收短信广播则一定有加入相应的权限 --><uses-permission android:name="android.permission.RECEIVE_SMS"></uses-permission>
</manifest>