自动填充短信验证码实现方式

自动填充短信验证码
短信验证码是大部分软件里面都存在的功能，同时为了避免用户自己输入导致的繁琐操作，有一部分app设计者将其设置成了自动填充的方式，方便用户操作那么这种方式是什么实现的呢。
利用广播接收器来拦截短信获取其中匹配的内容，提供回掉，将短信内容暴露到activity中实现自动填充
首先我们要实现一个广播接收器

package com.wquant.weilt.reciver;import java.util.regex.Matcher;import java.util.regex.Pattern;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.os.Bundle;import android.os.Message;import android.telephony.SmsMessage;import android.text.TextUtils;import android.util.Log;public class SmsReciver extends BroadcastReceiver {    private String patternCoder = "(?<!\\d)\\d{6}(?!\\d)";    @Override    public void onReceive(Context context, Intent intent) {        //获取短信数据        Object[] objs = (Object[]) intent.getExtras().get("pdus");        for (Object obj : objs) {            byte[] pdu = (byte[]) obj;            //将字节数组封装成为smsmessage对象            SmsMessage sms = SmsMessage.createFromPdu(pdu);            //获得短短信内容            String message = sms.getMessageBody();            Log.d("短信内容", "message：" + message);            // 短息的手机号。。+86开头？            String from = sms.getOriginatingAddress();            Log.d("短信来源", "from ：" + from);            if (!TextUtils.isEmpty(from)) {                String code = patternCode(message);                if (!TextUtils.isEmpty(code)) {                    mMessageListener.onReceived(code);                }            }        }    }    /**     * 匹配短信中间的6个数字（验证码等）     *      * @param patternContent     * @return     */    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;    }    // 回调接口    public interface MessageListener {        public void onReceived(String message);    }    MessageListener mMessageListener;    public void setOnReceivedMessageListener(MessageListener messageListener) {        this.mMessageListener = messageListener;    }}

ok上面我们已经实现了广播接收器，在activity中我们要绑定一个意图过滤器并将此广播注册在destory方法中要将其解除注册

package com.wquant.weilt.controler;import org.apache.http.Header;import org.json.JSONException;import org.json.JSONObject;import android.content.Intent;import android.content.IntentFilter;import android.os.Bundle;import android.os.CountDownTimer;import android.view.KeyEvent;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.ImageView;import android.widget.TextView;import android.widget.Toast;import com.loopj.android.http.RequestParams;import com.wquant.weilt.MyApplication;import com.wquant.weilt.R;import com.wquant.weilt.control.base.JsonHttpResponseHandlerBase;import com.wquant.weilt.control.base.MyBaseActivity;import com.wquant.weilt.reciver.SmsReciver;import com.wquant.weilt.reciver.SmsReciver.MessageListener;import com.wquant.weilt.util.CToast;import com.wquant.weilt.util.CommonUtil;import com.wquant.weilt.util.Constant;import com.wquant.weilt.util.HttpUtil;/** * 修改密码 *  * @author zhaomy *  */public class RestartLoginOrTradPwdActivity extends MyBaseActivity {    SmsReciver reciver;    @Override    protected void onCreate(Bundle savedInstanceState) {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_restart_login_or_trad);        init();    }    private void init() {        code = (EditText) findViewById(R.id.register_code);        reciver=new SmsReciver();        IntentFilter filter = new IntentFilter();        // 设置短信拦截参数        filter.addAction("android.provider.Telephony.SMS_RECEIVED");        //设置最大优先级        filter.setPriority(Integer.MAX_VALUE);        registerReceiver(reciver, filter);        reciver.setOnReceivedMessageListener(new MessageListener() {            @Override            public void onReceived(String message) {                code.setText(message);            }        });    }    @Override    protected void onPause() {        super.onPause();    }    @Override    protected void onDestroy() {        unregisterReceiver(reciver);        super.onDestroy();    }}