【移動應用開發(fā)技術(shù)】Android中如何實現(xiàn)倒計時驗證

【移動應用開發(fā)技術(shù)】Android中如何實現(xiàn)倒計時驗證

/upload/information/20200623/125/128852.gif1、第一種方式：Timer/**

*

Description：自定義Timer

*

<p>

*

Created

by

Mjj

on

2016/12/4.

*/

public

class

TimeCount

extends

CountDownTimer

{

private

Button

button;

//參數(shù)依次為總時長,和計時的時間間隔

public

TimeCount(Button

button,

long

millisInFuture,

long

countDownInterval)

{

super(millisInFuture,

countDownInterval);

this.button

=

button;

}

//計時過程顯示

@Override

public

void

onTick(long

millisUntilFinished)

{

String

time

=

"("

+

millisUntilFinished

/

1000

+

")秒";

setButtonInfo(time,

"#c1c1c1",

false);

}

//計時完畢時觸發(fā)

@Override

public

void

onFinish()

{

setButtonInfo("重新獲取",

"#f95353",

true);

}

/**

*

驗證按鈕在點擊前后相關(guān)設(shè)置

*

*

@param

content

要顯示的內(nèi)容

*

@param

color

顏色值

*

@param

isClick

是否可點擊

*/

private

void

setButtonInfo(String

content,

String

color,

boolean

isClick)

{

button.setText(content);

button.setBackgroundColor(Color.parseColor(color));

button.setClickable(isClick);

}

}2、第二種方式：Handler/**

*

第二種方式：使用Handler

*

<p>

*

靜態(tài)內(nèi)部類：避免內(nèi)存泄漏

*/

private

static

class

MyHandler

extends

Handler

{

private

final

WeakReference<MainActivity>

weakReference;

public

MyHandler(MainActivity

activity)

{

weakReference

=

new

WeakReference<MainActivity>(activity);

}

@Override

public

void

handleMessage(Message

msg)

{

super.handleMessage(msg);

MainActivity

activity

=

weakReference.get();

if

(activity

!=

null)

{

switch

(msg.what)

{

case

0:

if

(msg.arg1

==

0)

{

btn2.setText("重新獲取");

btn2.setBackgroundColor(Color.parseColor("#f95353"));

btn2.setClickable(true);

}

else

{

btn2.setText("("

+

msg.arg1

+

")秒");

btn2.setBackgroundColor(Color.parseColor("#c1c1c1"));

btn2.setClickable(false);

}

break;

}

}

}

}

/**

*

監(jiān)聽按鈕下直接調(diào)用即可

*/

private

void

sendMessageClick()

{

new

Thread(new

Runnable()

{

@Override

public

void

run()

{

for

(int

i

=

59;

i

>=

0;

i--)

{

Message

msg

=

myHandler.obtainMessage();

msg.arg1

=

i;

myHandler.sendMessage(msg);

try

{

Thread.sleep(1000);