实际应用开发中,会经常用到短信验证的功能,这个时候如果再让用户就查看短信.然后再回到界面进行短信的填写,难免有多少有些不方便,作为开发者.本着用户至上的原则我们也应该来实现验证码的自动填写功能,实现短信验证码自动填写有两种方式: 第一种,实现Content
实际应用开发中,会经常用到短信验证的功能,这个时候如果再让用户就查看短信.然后再回到界面进行短信的填写,难免有多少有些不方便,作为开发者.本着用户至上的原则我们也应该来实现验证码的自动填写功能,实现短信验证码自动填写有两种方式:
第一种,实现ContentObserver,把我们自己的Observer注册到短信服务,短信应用收到新的短信的时候会发送给我我们自己的Observer,然后我们在自己的Observer中.通过代码发送给我们的需要填充的界面就行了.这种方式是利用了观察者模式 .
SmsObserver的代码:
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package com.example.testgetsmscode;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import android.content.Context;
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import android.database.ContentObserver;
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import android.database.Cursor;
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import android.net.Uri;
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import android.os.Handler;
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import android.os.Message;
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import android.util.Log;
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public class SmsObserver extends ContentObserver {
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private Context context;
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private Handler handler;
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private String compileValue;
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public SmsObserver(Context context, Handler handler, int codeLength) {
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super(handler);
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this.context = context;
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this.handler = handler;
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compileValue = "\\d{" + codeLength + "}";
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}
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@Override
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public void onChange(boolean selfChange, Uri uri) {
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Log.e("smsobserver", "selfChange:" + selfChange + "Uri:" + uri.toString());
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if (uri.toString().equals("content://sms/raw")) {
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return;
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}
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Cursor cursor = context.getContentResolver().query(uri, null, null, null, null);
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if (cursor != null) {
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if (cursor.moveToFirst()) {
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String address = cursor.getString(cursor.getColumnIndex("address"));
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String body = cursor.getString(cursor.getColumnIndex("body"));
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Log.e("smsobserver", "get sms:address:" + address + "body:" + body);
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cursor.close();
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Pattern pattern = Pattern.compile(compileValue);
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Matcher matcher = pattern.matcher(body);
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if (matcher.find()) {
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Log.e("smsobserver", "code:" + matcher.group(0));
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Log.e("smsobserver", "contentObserver get code time:" + System.currentTimeMillis());
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Message msg = Message.obtain();
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msg.what = MainActivity.msg_received_code;
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msg.obj = matcher.group(0);
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handler.sendMessage(msg);
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} else {
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Log.e("smsobserver", "没有在短信中获取到合格的验证码");
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}
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} else {
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Log.e("smsobserver", "movetofirst为false了");
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}
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} else {
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Log.e("smsobserver", "cursor为null了");
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}
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}
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}
主界面中的使用方法:
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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initView();
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}
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private void initView() {
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et_main = (EditText) findViewById(R.id.et_main);
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mSmsObserver = new SmsObserver(MainActivity.this, mHandler, 6);
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Uri uri = Uri.parse("content://sms");
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getContentResolver().registerContentObserver(uri, true, mSmsObserver);
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}
注册之后,肯定要在界面销毁的时候取消注册咯:
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@Override
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protected void onDestroy() {
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super.onDestroy();
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getContentResolver().unregisterContentObserver(mSmsObserver);
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}
在ContentObserver构造方法中,我们传递了一个handler对象,目的就是通过handler把我们得到的短信验证码给接收过来:
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public static final int msg_received_code = 1;
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public Handler mHandler = new Handler() {
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public void handleMessage(android.os.Message msg) {
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if (msg.what == msg_received_code) {
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String code = (String) msg.obj;
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et_main.setText(code);
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Log.e("mainactivity", "activity get code time:" + System.currentTimeMillis());
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}
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};
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};
最后的最后,一定不要忘记加权限:
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<uses-permission android:name="android.permission.READ_SMS" />
顺便一提:这种方式实现的验证码自动填写功能,在android2.3上竟然没有效果,在4.0上没问题,欢迎纠正和补充..
第二种,我们自己的应用创建一个广播接收器,接受短信变化的广播,然后在收到广播的时候,再把验证码提取出来发送给我们的需要填充验证码的地方就行了
广播接收器的代码:
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package com.example.testsendandreceivesms;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.os.Bundle;
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import android.os.Handler;
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import android.telephony.SmsMessage;
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import android.util.Log;
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public class SmsReceiveBroadcastReceiver extends BroadcastReceiver {
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private Context context;
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private Handler handler;
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private int codeLength = 0;
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public SmsReceiveBroadcastReceiver(Context context, Handler handler, int codeLength) {
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this.context = context;
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this.handler = handler;
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this.codeLength = codeLength;
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}
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@Override
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public void onReceive(Context context, Intent intent) {
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Bundle bundle = intent.getExtras();
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Object[] objects = (Object[]) bundle.get("pdus");
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if (objects != null) {
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String phone = null;
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StringBuffer content = new StringBuffer();
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for (int i = 0; i < objects.length; i++) {
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SmsMessage sms = SmsMessage.createFromPdu((byte[]) objects[i]);
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phone = sms.getDisplayOriginatingAddress();
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content.append(sms.getDisplayMessageBody());
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}
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Log.e("smsbc", "phone:" + phone + "\ncontent:" + content.toString());
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checkCodeAndSend(content.toString());
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}
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}
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private void checkCodeAndSend(String content) {
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Pattern pattern = Pattern.compile("\\d{" + codeLength + "}");
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Matcher matcher = pattern.matcher(content);
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if (matcher.find()) {
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String code = matcher.group(0);
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Log.e("smsbc", "短信中找到了符合规则的验证码:" + code);
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handler.obtainMessage(MainActivity.BC_SMS_RECEIVE, code).sendToTarget();
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Log.e("smsbc", "广播接收器接收到短信的时间:" + System.currentTimeMillis());
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} else {
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Log.e("smsbc", "短信中没有找到符合规则的验证码");
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}
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}
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}
主界面中的使用:
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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broadcastReceiver = new SmsReceiveBroadcastReceiver(MainActivity.this, handler, 6);
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IntentFilter intentFilter = new IntentFilter("android.provider.Telephony.SMS_RECEIVED");
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registerReceiver(broadcastReceiver, intentFilter);
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initView();
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}
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@Override
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protected void onDestroy() {
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super.onDestroy();
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unregisterReceiver(broadcastReceiver);
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}
handler:
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private Handler handler = new Handler() {
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public void handleMessage(android.os.Message msg) {
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if (msg.what == BC_SMS_RECEIVE) {
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String code = (String) msg.obj;
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tv_sms_code.setText(code);
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Log.e("mainactivity", "界面收到短信的时间:" + System.currentTimeMillis());
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}
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};
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};
特别注意权限:
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<uses-permission android:name="android.permission.RECEIVE_SMS"/>
这种实现方式在android2.3上和android4.0上都表现良好,别的没测试,
和上一种方法一样,也是需要注册和取消注册操作的,而且,因为同样都是利用了handler把得到的内容发送回来.所以发送内容的效率产不多,不过在接受短信的效率上要比上一种方式要好.毕竟上一种方式是短信应用收到短信,然后再向他发送,而使用广播的话.直接就是从源头上进行接收短信了
短信自动填充demo下载：https://github.com/zhouxu88/SMSContentObserver
android开发两种方式实现短信验证码自动填写功能
转载https://www.codesocang.com/appboke/36677.html
