Android利用CursorLoader实现短信验证码自动填写

package com.wuwang.demo;

import android.content.ContentValues;
import android.content.Context;
import android.database.ContentObserver;
import android.database.cursor;
import android.net.Uri;
import android.os.bundle;
import android.support.v4.app.LoadeRMANager;
import android.support.v4.content.cursorLoader;
import android.support.v4.content.Loader;
import android.util.Log;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * <p>Author : Wuwang </p>
 * <p>Company : ZhiJiaKeJi</p>
 * <p>Date :2016-07-21 09:16</p>
 * <p>Description : 验证码自动填充</p>
 */
public class VerificationCodeAutoFill implements LoadeRMANager.LoaderCallBACks<cursor> {

  private Context context;
  private OnNewmessageListener listener;
  private String msgRegular;

  public VerificationCodeAutoFill(Context context){
    this(context,null,null);
  }

  public VerificationCodeAutoFill(Context context,OnNewmessageListener listener){
    this(context,listener,null);
  }

  /**
   * @param context
   * @param listener 新短信监听
   * @param msgRegular 对新短信处理的正则表达式，如果为空，则不进行处理
   */
  public VerificationCodeAutoFill(Context context,OnNewmessageListener listener,String msgRegular){
    this.context=context;
    this.listener=listener;
    this.msgRegular=msgRegular;
  }

  public VerificationCodeAutoFill registerTo(int id,LoadeRMANager manager){
    manager.initLoader(id,this);
    return this;
  }

  @Override
  public Loader<cursor> onCreateLoader(int id,Bundle args) {
    return new cursorLoader(context,Uri.parse("content://sms/inBox"),new String[] { "_id","address","read","body" }," read=?",new String[] {"0" },"_id desc");
  }

  @Override
  public void onLoadFinished(Loader<cursor> loader,cursor data) {
    // 按id排序，如果按date排序的话，修改手机时间后，读取的短信就不准了
    if (data != null && data.getCount() > 0) {
      ContentValues values = new ContentValues();
      values.put("read","1"); // 修改短信为已读模式
      data.moveToNext();
      int smsbodycolumn = data.getcolumnIndex("body");
      String smsBody = data.getString(smsbodycolumn);
      Log.e("wuwang",smsBody);
      if(listener!=null){
        listener.onNewmessage(getDynamicpassword(smsBody,msgRegular));
      }
    }
  }

  @Override
  public void onLoaderReset(Loader<cursor> loader) {

  }

  public interface OnNewmessageListener {
    void onNewmessage(String msg);
  }

  private String getDynamicpassword(String str,String regular) {
    if(regular==null)return str;
    Pattern conTinuousnumberPattern = Pattern.compile(msgRegular);
    Matcher m = conTinuousnumberPattern.matcher(str);
    String dynamicpassword = "";
    while (m.find()) {
      System.out.print(m.group());
      dynamicpassword = m.group();
    }
    return dynamicpassword;
  }

}

//匹配四位数字的短信验证码
new VerificationCodeAutoFill(this,new VerificationCodeAutoFill.onNewmessageListener() {
      @Override
      public void onNewmessage(String msg) {
        //etmsg.setText(msg); //验证码填充
      }
    },"\\d{4}").registerTo(1,getSupportLoadeRMANager());