我有两个XML的edittext。在一个EditText中,用户可以将一个数字作为分钟,在另一个EditText中,将一个数字作为秒。单击finish按钮后,秒EditText应该开始倒计时,并每秒钟更新一次文本。
此外,我如何才能保持它的更新,直到它达到零分零秒?
我有两个XML的edittext。在一个EditText中,用户可以将一个数字作为分钟,在另一个EditText中,将一个数字作为秒。单击finish按钮后,秒EditText应该开始倒计时,并每秒钟更新一次文本。
此外,我如何才能保持它的更新,直到它达到零分零秒?
当前回答
有Rx的纯溶液,有人可能会感兴趣
数字扩展(Double, Float, Long等):
fun Number.countDownTimer(tick: Long = 1, timeUnit: TimeUnit = TimeUnit.SECONDS): Observable<Long> {
val count = this.toLong()
return Observable.interval(tick, timeUnit)
.take(count)
.map { count - it - 1 }
}
使用
60.countDownTimer().subscribe { textView.text = it }
其他回答
// the count down timer
new CountDownTimer(30000, 1000)
{
@Override
public void onTick(long l) {
}
@Override
public void onFinish() {
//on finish the count down timer finsih
}
}
}
}.start();
var futureMinDate = Date()
val sdf = SimpleDateFormat("yyyy-MM-dd", Locale.ENGLISH)
try {
futureMinDate = sdf.parse("2019-08-22")
} catch (e: ParseException) {
e.printStackTrace()
}
// Here futureMinDate.time Returns the number of milliseconds since January 1, 1970, 00:00:00 GM
// So we need to subtract the millis from current millis to get actual millis
object : CountDownTimer(futureMinDate.time - System.currentTimeMillis(), 1000) {
override fun onTick(millisUntilFinished: Long) {
val sec = (millisUntilFinished / 1000) % 60
val min = (millisUntilFinished / (1000 * 60)) % 60
val hr = (millisUntilFinished / (1000 * 60 * 60)) % 24
val day = ((millisUntilFinished / (1000 * 60 * 60)) / 24).toInt()
val formattedTimeStr = if (day > 1) "$day days $hr : $min : $sec"
else "$day day $hr : $min : $sec"
tvFlashDealCountDownTime.text = formattedTimeStr
}
override fun onFinish() {
tvFlashDealCountDownTime.text = "Done!"
}
}.start()
传递一个未来日期并将其转换为毫秒。
使用芬兰湾的科特林:
var timer = object: CountDownTimer(30000, 1000) {
override fun onTick(millisUntilFinished: Long) {
tvTimer.setText("seconds remaining: " + millisUntilFinished / 1000)
}
override fun onFinish() {
tvTimer.setText("done!")
}
}
timer.start()
试试这个方法:
private void startTimer() {
startTimer = new CountDownTimer(30000, 1000) {
public void onTick(long millisUntilFinished) {
long sec = (TimeUnit.MILLISECONDS.toSeconds(millisUntilFinished) -
TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millisUntilFinished)));
Log.e(TAG, "onTick: "+sec );
tv_timer.setText(String.format("( %02d SEC )", sec));
if(sec == 1)
{
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
tv_timer.setText("( 00 SEC )");
}
}, 1000);
}
}
public void onFinish() {
tv_timer.setText("Timer finish");
}
}.start();
}
输出:01:30
new CountDownTimer(90000, 1000) {
public void onTick(long duration) {
//tTimer.setText("seconds remaining: " + millisUntilFinished / 1000);
//here you can have your logic to set text to edittext resource id
// Duration
long Mmin = (duration / 1000) / 60;
long Ssec = (duration / 1000) % 60;
if (Ssec < 10) {
tTimer.setText("" + Mmin + ":0" + Ssec);
} else tTimer.setText("" + Mmin + ":" + Ssec);
}
public void onFinish() {
tTimer.setText("00:00");
}
}.start();