BroadcastReceiver ---Android中的广播机制（发短信）

1.BroadcastActivity2.java

package com.eric.broadcast;

import com.example.sqlite.R;

import android.app.Activity;
import android.content.IntentFilter;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class BroadcastActivity2 extends Activity {

private Button bindBroadcastBtn = null;
private Button unbindBroadcastBtn = null;

private SMSBroadcastReceiver2 smsReceiver = null;

public static final String SMS_ACTION = "android.provider.Telephony.SMS_RECEIVED";

@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.broadcast_activity2);
bindBroadcastBtn = (Button) findViewById(R.id.bindBroadcastBtn);
unbindBroadcastBtn = (Button) findViewById(R.id.unbindBroadcastBtn);

bindBroadcastBtn.setOnClickListener(new BindBroadcastListener());
unbindBroadcastBtn.setOnClickListener(new UnBindBroadcastListenetr());

}

class BindBroadcastListener implements OnClickListener {

@Override
public void onClick(View v) {

smsReceiver = new SMSBroadcastReceiver2();
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(SMS_ACTION);
// 将BroadcastReceiver对象注册到系统中
BroadcastActivity2.this.registerReceiver(smsReceiver, intentFilter);

}

}

class UnBindBroadcastListenetr implements OnClickListener {

@Override
public void onClick(View v) {

BroadcastActivity2.this.unregisterReceiver(smsReceiver);
}
}
}

2.SMSBroadcastReceiver2 .java

package com.eric.broadcast;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.SmsMessage;

public class SMSBroadcastReceiver2 extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {

System.out.println("SMS receive");
// 接收Intent对象中的数据
Bundle bundle = intent.getExtras();
// 在Bundle对象当中有一个属性名为pdus，这属性的值班是一个Object数组
Object[] object = (Object[]) bundle.get("pdus");
// 创建一个SmsMessage对象
SmsMessage[] messager = new SmsMessage[object.length];
System.out.println(messager.length);

for (int i = 0; i < object.length; i++) {
// 使用Object数组当中的对象创建SmsMessage对象
messager[i] = SmsMessage.createFromPdu((byte[]) object[i]);
// 调用SmsMessage对象的getDisplayMessageBody（）方法，就可以得到消息的内容
System.out.println(messager[i].getDisplayMessageBody());
}

}

}

3.在Androidmanifest.xml中加入：
如果不加入这段代码就不会调用SMSBroadcastReceiver2中的onReceiver()方法