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Android 倒计时 仿京东

效果

Android 倒计时 仿京东_CountDownTimer

xml

<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="@dimen/dp_10"
android:text="距结束"/>

<TextView
android:id="@+id/tv_seckill_hour"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/shape_bg_black_corners"
android:paddingLeft="@dimen/dp_4"
android:paddingRight="@dimen/dp_4"
android:text="00"
android:textColor="@color/white"/>

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" : "/>

<TextView
android:id="@+id/tv_seckill_minute"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/shape_bg_black_corners"
android:paddingLeft="@dimen/dp_4"
android:paddingRight="@dimen/dp_4"
android:text="00"
android:textColor="@color/white"/>

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" : "/>

<TextView
android:id="@+id/tv_seckill_second"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/shape_bg_black_corners"
android:paddingLeft="@dimen/dp_4"
android:paddingRight="@dimen/dp_4"
android:text="00"
android:textColor="@color/white"/>

</LinearLayout>

shape

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<corners android:radius="5dp"/>
<solid android:color="@color/black"/>
</shape>

java

1、计算时间

/**
* 倒计时
*/
private void countDown() {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.CHINA);
Date curDate = new Date(System.currentTimeMillis());
String format = df.format(curDate);
try {
//时间换算
Date date = df.parse(mEndTime);
Date date1 = df.parse(format);
long defTime = date.getTime() - date1.getTime();
long days = defTime / (1000 * 60 * 60 * 24);
long hours = (defTime - days * (1000 * 60 * 60 * 24)) / (1000 * 60 * 60);
long minute = (defTime - days * (1000 * 60 * 60 * 24) - hours * (1000 * 60 * 60)) / (1000 * 60);
long seconds = defTime % 60000;
long second = Math.round((float) seconds / 1000);

//不足10的补0
if (hours >= 10) mTvSeckillHour.setText(String.valueOf(hours));
else mTvSeckillHour.setText(String.valueOf("0" + hours));

if (minute >= 10) mTvSeckillMinute.setText(String.valueOf(minute));
else mTvSeckillMinute.setText(String.valueOf("0" + minute));

if (second >= 10) mTvSeckillSecond.setText(String.valueOf(second));
else mTvSeckillSecond.setText(String.valueOf("0" + second));

} catch (ParseException e) {
e.printStackTrace();
}
}

2、在需要的地方调用handler

//开启倒计时
handler.sendEmptyMessage(0);

3、handler中处理

@SuppressLint("HandlerLeak")
private Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
countDown();
sendEmptyMessageDelayed(0, 1000);
}
};

更多:​​60s倒计时​​


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