android短信倒计时,Android使用CountDownTimer模拟短信验证倒计时

本文为大家分享了CountDownTimer模拟短信验证倒计时的具体代码，供大家参考，具体内容如下

内容：介绍倒计时CountDownTimer的基本使用方法。模拟短信验证

步骤：

1、继承CountDownTimer，重写onTick()、onFinish()

2、代码中new出CountDownTimer子类，传好参数，调用start()执行

代码如下：

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context="com.example.leixiansheng.countdowntimer.MainActivity">

android:id="@+id/tv_getMsg"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_centerInParent="true"

android:text="获取短信验证码"

android:background="@color/colorPrimaryDark"

android:textSize="16sp"

android:textColor="#ffffffff" />

TimerCount

package com.example.leixiansheng.countdowntimer;

import android.os.CountDownTimer;

import android.widget.TextView;

/**

* Created by Leixiansheng on 2018/7/18.

*/

public class TimerCount extends CountDownTimer {

private TextView mTextView;

public TimerCount(long millisInFuture, long countDownInterval, TextView textView) {

super(millisInFuture, countDownInterval);

mTextView = textView;

}

@Override

public void onTick(long millisUntilFinished) {

mTextView.setClickable(false);

mTextView.setText("重新获取" + millisUntilFinished / 1000 + "秒");

}

@Override

public void onFinish() {

mTextView.setClickable(true);

mTextView.setText("获取短信验证码");

}

}

Main

package com.example.leixiansheng.countdowntimer;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

final TextView textView = (TextView) findViewById(R.id.tv_getMsg);

textView.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

/**

* millisInFuture:要计数的总时长

* countDownInterval:每隔多少秒响应

*/

TimerCount timerCount = new TimerCount(5000, 1000, textView);

timerCount.start();

}

});

}

}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。