我正在做一个显示各种瑜伽姿势60秒的应用程序。我一直在试着让倒数计时器以我想要的方式工作。我需要计时器能够暂停,并在15秒后自动重启。来自Android的CountDownTimer不起作用,因为它没有暂停。我尝试了2个不同版本的重写Android CountDownTimers和经典版本(Android CountDownTimer),它们似乎都有相同的bug,因为它们使用的是Handler。
我试过这个版本:Android: CountDownTimer skips last onTick()! - 我添加了一个onFinish方法。
我正在尝试在onFinish方法中执行一个Thread.sleep 15秒,并且在进入Thread.sleep模式之前它没有更新UI超过最后一秒。在下面的代码中,在Thread.sleep调用之后,TextView不会更新为设置为空字符串。
cdt = new CountDownTimerWithPause(60000,1000,true) {
@Override
public void onTick(long millisUntiFinished) {
tvClock.setText("Remaining:" + millisUntiFinished/1000);
}
@Override
public void onFinish() {
tvClock.setText("");
bell.start();
if (bAutoPlayIsOn) {
tvClock.setText("waiting for next pose...");
try {
//15 second pauses between poses
Thread.sleep(15000);
//start over
listener.onForwardItemSelected();
ResetClocktoMaxTime(60000);
resume();
} catch (InterruptedException e) {
Log.d("Sleep Interrupted", e.toString());
e.printStackTrace();
}
catch (Exception e) {
Log.d("Timer", e.toString());
}
}
else {
tvClock.setText("Done");
btnStart.setText("Start ");
bClockIsTicking = false;
btnStart.setCompoundDrawablesWithIntrinsicBounds(null, playBtn, null, null);
}
}
};
任何人有任何想法如何做到这一点(15秒后重启)不同?
答案 0 :(得分:1)
正在从接口线程调用onFinish方法,因此在onFinish返回之前,您所做的任何接口更改都不会实际重绘。尝试这样的事情:
cdt = new CountDownTimerWithPause(60000,1000,true) {
@Override
public void onTick(long millisUntiFinished) {
tvClock.setText("Remaining:" + millisUntiFinished/1000);
}
@Override
public void onFinish() {
tvClock.setText("");
bell.start();
if (bAutoPlayIsOn) {
tvClock.setText("waiting for next pose...");
(
new Thread() {
public void run() {
try {
//15 second pauses between poses
Thread.sleep(15000);
getActivity().runOnUiThread
(
new Runnable() {
public void run() {
//start over
listener.onForwardItemSelected();
ResetClocktoMaxTime(60000);
resume();
}
}
);
}
catch (InterruptedException e) {
Log.d("Sleep Interrupted", e.toString());
e.printStackTrace();
}
catch (Exception e) {
Log.d("Timer", e.toString());
}
}
}
).start();
}
else {
tvClock.setText("Done");
btnStart.setText("Start ");
bClockIsTicking = false;
btnStart.setCompoundDrawablesWithIntrinsicBounds(null, playBtn, null, null);
}
}
};