Android开发学习
Android开发中，通过应用程序发送短信验证码，并监听短信内容把短信验证码自动填充到文本框中，通过BroadcastReceiver检测接收的短信内容（6位数字的验证码）
新建布局文件：activity_main.xml，代码内容：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<EditText
android:id="@+id/et"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:gravity="center_horizontal"
android:hint="@string/smscontent" />
</RelativeLayout>
实现的MainActivity.java代码如下：
package com.zhengdecai.detectionsmsinfo;
import java.io.UnsupportedEncodingException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.telephony.SmsMessage;
import android.text.TextUtils;
import android.util.Log;
import android.widget.EditText;
/**
* 通过BroadcastReceiver检测接收的短信内容（6位数字的验证码）
*
* @author 郑德才
*
*/
public class MainActivity extends Activity {
private BroadcastReceiver smsReceiver;
private IntentFilter filter2;
private Handler handler;
private EditText et;
private String strContent;
private String patternCoder = "(?<!\\d)\\d{6}(?!\\d)";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
et = (EditText) findViewById(R.id.et);
handler = new Handler() {
public void handleMessage(Message msg) {
et.setText(strContent);
};
};
filter2 = new IntentFilter();
filter2.addAction("android.provider.Telephony.SMS_RECEIVED");
filter2.setPriority(Integer.MAX_VALUE);
smsReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
Object[] objs = (Object[]) intent.getExtras().get("pdus");
for (Object obj : objs) {
byte[] pdu = (byte[]) obj;
SmsMessage sms = SmsMessage.createFromPdu(pdu);
String sms_mess = sms.getMessageBody();
String message = sms_mess;
try {
message = new String(sms_mess.getBytes(), "GBK");
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Log.d("logo", "sms " + sms.toString());
Log.d("logo", "message " + message);
String from = sms.getOriginatingAddress();
Log.d("logo", "from " + from);
if (!TextUtils.isEmpty(from)) {
String code = patternCode(message);
if (!TextUtils.isEmpty(code)) {
strContent = code;
handler.sendEmptyMessage(1);
}
}
}
}
};
registerReceiver(smsReceiver, filter2);
}
@Override
protected void onDestroy() {
super.onDestroy();
unregisterReceiver(smsReceiver);
}
private String patternCode(String patternContent) {
if (TextUtils.isEmpty(patternContent)) {
return null;
}
Pattern p = Pattern.compile(patternCoder);
Matcher matcher = p.matcher(patternContent);
if (matcher.find()) {
return matcher.group();
}
return null;
}
}
把短信内容存储到sd卡中，然后读取短信内容实现：
package com.zhengdecai.detectionsmsinfo;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import android.annotation.SuppressLint;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.gsm.SmsMessage;
import android.util.Log;
/**
* 把短信内容存储到sd卡中，然后读取短信内容
*
* @author Administrator
*
*/
public class SmsReceiver extends BroadcastReceiver {
private String verifyCode = "";
public static final String TAG = "SMSReceiver";
public static final String SMS_RECEIVED_ACTION = "android.provider.Telephony.SMS_RECEIVED";
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(SMS_RECEIVED_ACTION)) {
SmsMessage[] messages = getMessagesFromIntent(intent);
for (SmsMessage message : messages) {
Log.i(TAG,
message.getOriginatingAddress() + " : "
+ message.getDisplayOriginatingAddress()
+ " : " + message.getDisplayMessageBody()
+ " : " + message.getTimestampMillis());
String smsContent = message.getDisplayMessageBody();
Log.i(TAG, smsContent);
writeFile(smsContent);// 将短信内容写入SD卡
}
}
}
public final SmsMessage[] getMessagesFromIntent(Intent intent) {
Object[] messages = (Object[]) intent.getSerializableExtra("pdus");
byte[][] pduObjs = new byte[messages.length][];
for (int i = 0; i < messages.length; i++) {
pduObjs[i] = (byte[]) messages[i];
}
byte[][] pdus = new byte[pduObjs.length][];
int pduCount = pdus.length;
SmsMessage[] msgs = new SmsMessage[pduCount];
for (int i = 0; i < pduCount; i++) {
pdus[i] = pduObjs[i];
msgs[i] = SmsMessage.createFromPdu(pdus[i]);
}
return msgs;
}
// 将短信内容写到SD卡上的文件里，便于将文件pull到PC，这样可方便其它如WWW/WAP平台的自动化
@SuppressLint("SdCardPath")
public void writeFile(String str) {
String filePath = "/mnt/sdcard/verifyCode.txt";
byte[] bytes = str.getBytes();
try {
File file = new File(filePath);
file.createNewFile();
FileOutputStream fos = new FileOutputStream(file);
fos.write(bytes);
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
创建receiver：
<receiver android:name=".SmsReceiver" >
<intent-filter>
<action android:name="android.provider.Telephony.SMS_RECEIVED" />
</intent-filter>
</receiver>
需要权限：
<uses-permission android:name="android.permission.SEND_SMS" >
</uses-permission>
<uses-permission android:name="android.permission.RECEIVE_SMS" >
</uses-permission>
实现运行效果图：
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