Android之BroadcastReceiver 监听系统广播

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";
@Override
protected 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
{
@Override
public 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
{
@Override
public void onClick(View v) {
System.out.println("unregisterReceiver");
MainActivity.this.unregisterReceiver(smsReceiver);
}
}

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{

@Override
public 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());
}
}
}

<?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-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />

<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android: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>