Android自动获取短信验证码功能

先给大家展示下效果图，如果大家感觉不错，请参考实现代码。

1.自定义监听类

/**
 * 短信监听器，用于自动填充验证码
*/
public class smscontentobserver extends contentobserver {
  public final string sms_uri_inbox = "content://sms/inbox";//收信箱
  private activity activity = null;
  private string smscontent = "";//验证码
  private edittext verifytext = null;//验证码编辑框
  private string sms_address_prnumber = "10690329013589";//短息发送提供商
  private string smsid = "";
  //短信观察者 收到一条短信时 onchange方法会执行两次，所以比较短信id，如果一致则不处理
  public smscontentobserver(activity activity, handler handler, edittext verifytext) {
    super(handler);
    this.activity = activity;
    this.verifytext = verifytext;
  }
  @override
  public void onchange(boolean selfchange) {
    super.onchange(selfchange);
    cursor cursor = null;// 光标
    // 读取收件箱中指定号码的短信
    cursor = activity.getcontentresolver().query(uri.parse(sms_uri_inbox),
      new string[]{"_id", "address", "body", "read"}, //要读取的属性
      "address=? and read=?", //查询条件是什么
      new string[]{sms_address_prnumber, "0"},//查询条件赋值
      "date desc");//排序
    if (cursor != null) {
      cursor.movetofirst();
      if (cursor.movetofirst()) {
        //比较和上次接收到短信的id是否相等
        if (!smsid.equals(cursor.getstring(cursor.getcolumnindex("_id")))) {
          string smsbody = cursor.getstring(cursor.getcolumnindex("body"));
          //用正则表达式匹配验证码
          pattern pattern = pattern.compile("[0-9]{6}");
          matcher matcher = pattern.matcher(smsbody);
          if (matcher.find()) {//匹配到6位的验证码
            smscontent = matcher.group();
            if (verifytext != null && null != smscontent && !"".equals(smscontent)) {
              verifytext.requestfocus();//获取焦点
              verifytext.settext(smscontent);//设置文本
              verifytext.setselection(smscontent.length());//设置光标位置
            }
          }
          smsid = cursor.getstring(cursor.getcolumnindex("_id"));
        }
      }
    }
  }
}

2.在登录页面事件化监听类

//实例化短信监听器
smscontentobserver mobserver = new smscontentobserver(getactivity(), new handler(), met_auth_code);
// 注册短信变化监听
mcontext.getcontentresolver().registercontentobserver(uri.parse("content://sms/"), true, mobserver);

3.声明读取短信权限

<uses-permission android:name="android.permission.receive_sms" />
<uses-permission android:name="android.permission.read_sms" />
<uses-permission android:name="android.permission.write_sms" />

4.为了防止内存泄漏，记得注销监听

@override
public void ondestroy() {
super.ondestroy();
  //注销短信监听   
  mcontext.getcontentresolver().unregistercontentobserver(mobserver);
} 

小结：

去短信库获取短信比较不容易被拦截

以上所述是小编给大家介绍的android自动获取短信验证码功能，希望对大家有所帮助