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,null,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());