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實際上，我設計了一個分離的Timer類，它帶有用於在textview上顯示分秒的處理程序。這工作正常，因爲我已經調試它和處理程序將確定句柄，但文本視圖不會得到更新pl幫助我在這方面。 我正在爲Timer類標記下面的代碼。 在此先感謝。文本視圖沒有通過處理程序得到更新
public class Timer
{
private int _interval;
public int getInterval()
{
return _interval;
}
public void setInterval(int delay)
{
_interval = delay;
}
private Handler handler;
private Runnable _tickHandler;
private Runnable delegate;
private boolean ticking;
public boolean getIsTicking()
{
return ticking;
}
public Timer(int interval)
{
_interval = interval;
handler = new Handler();
}
public Timer(int interval, Runnable onTickHandler)
{
_interval = interval;
setOnTickHandler(onTickHandler);
handler = new Handler();
}
public void start(int interval, Runnable onTickHandler)
{
if (ticking) return;
_interval = interval;
setOnTickHandler(onTickHandler);
handler.postDelayed(delegate, _interval);
ticking = true;
}
public void start()
{
if (ticking) return;
handler.postDelayed(delegate, _interval);
ticking = true;
}
public void stop()
{
handler.removeCallbacks(delegate);
ticking = false;
}
public void setOnTickHandler(Runnable onTickHandler)
{
if (onTickHandler == null) return;
_tickHandler = onTickHandler;
delegate = new Runnable()
{
public void run()
{
if (_tickHandler == null) return;
_tickHandler.run();
handler.postDelayed(delegate, _interval);
}
}
;
}
}
以下是我使用這樣
runOnUIThread(new Runnable(){
public void run(){
lblDevOnOff.setText("");
lblDevOnOff.setText(String.format("%d:%02d", minutes,seconds));
}
})
你應該
handler或runOnUIThread()東西更新文本視圖
Timer tmr = new Timer(100,new Runnable()
{
public void run()
{
long millis = System.currentTimeMillis() - mStartTime;
int seconds = (int) (millis/1000);
int minutes = seconds/60;
seconds = seconds % 60;
lblDevOnOff.setText("");
lblDevOnOff.setText(String.format("%d:%02d", minutes,seconds));
}
}
);
tmr.start();