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
只需通过传递秒和textview对象调用下面的函数
public void reverseTimer(int Seconds,final TextView tv){
new CountDownTimer(Seconds* 1000+1000, 1000) {
public void onTick(long millisUntilFinished) {
int seconds = (int) (millisUntilFinished / 1000);
int minutes = seconds / 60;
seconds = seconds % 60;
tv.setText("TIME : " + String.format("%02d", minutes)
+ ":" + String.format("%02d", seconds));
}
public void onFinish() {
tv.setText("Completed");
}
}.start();
}
其他回答
接口方式。
import android.os.CountDownTimer;
/**
* Created by saikiran on 07-03-2016.
*/
public class CountDownTimerCustom extends CountDownTimer {
private TimeTickListener mTickListener;
private TimeFinishListener mFinishListener;
private long millisUntilFinished;
public CountDownTimerCustom(long millisInFuture, long countDownInterval) {
super(millisInFuture, countDownInterval);
}
public void updateTickAndFinishListener(TimeTickListener tickListener) {
mTickListener = tickListener;
}
public void updateFinishListner(TimeFinishListener listener) {
mFinishListener = listener;
}
public long getCurrentMs() {
return millisUntilFinished;
}
public int getCurrentSec() {
return (int) millisUntilFinished / 1000;
}
@Override
public void onTick(long millisUntilFinished) {
this.millisUntilFinished = millisUntilFinished;
if (mTickListener != null)
mTickListener.onTick(millisUntilFinished);
}
@Override
public void onFinish() {
if (mTickListener != null)
mTickListener.onFinished();
mFinishListener.onFinished();
}
public interface TimeTickListener {
void onTick(long mMillisUntilFinished);
void onFinished();
}
public interface TimeFinishListener {
void onFinished();
}
}
只需通过传递秒和textview对象调用下面的函数
public void reverseTimer(int Seconds,final TextView tv){
new CountDownTimer(Seconds* 1000+1000, 1000) {
public void onTick(long millisUntilFinished) {
int seconds = (int) (millisUntilFinished / 1000);
int minutes = seconds / 60;
seconds = seconds % 60;
tv.setText("TIME : " + String.format("%02d", minutes)
+ ":" + String.format("%02d", seconds));
}
public void onFinish() {
tv.setText("Completed");
}
}.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();
}
下面是我在Kotlin中使用的解决方案
private fun startTimer()
{
Log.d(TAG, ":startTimer: timeString = '$timeString'")
object : CountDownTimer(TASK_SWITCH_TIMER, 250)
{
override fun onTick(millisUntilFinished: Long)
{
val secondsUntilFinished : Long =
Math.ceil(millisUntilFinished.toDouble()/1000).toLong()
val timeString = "${TimeUnit.SECONDS.toMinutes(secondsUntilFinished)}:" +
"%02d".format(TimeUnit.SECONDS.toSeconds(secondsUntilFinished))
Log.d(TAG, ":startTimer::CountDownTimer:millisUntilFinished = $ttlseconds")
Log.d(TAG, ":startTimer::CountDownTimer:millisUntilFinished = $millisUntilFinished")
}
@SuppressLint("SetTextI18n")
override fun onFinish()
{
timerTxtVw.text = "0:00"
gameStartEndVisibility(true)
}
}.start()
}
// 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();