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我正在嘗試爲Android創建一個時鐘應用程序。我設法實現了秒錶功能,但它似乎仍然充滿了問題。Android:如何增加按鈕點擊響應速度?
響應速度太慢,即當我點擊開始按鈕響應緩慢,所以它不會立即開始。點擊停止按鈕時也是如此。
目前提供的方法還不夠嗎?還是有更好的解決方案?請幫幫我。
public class StopWatchView extends LinearLayout{
private int tenMSecs = 0;
private Timer timer = new Timer();
private TimerTask timerTask = null;
private TimerTask showTimeTask = null;
private TextView tvHour, tvMinute, tvSecond, tvMSecond;
private Button btnSWStart, btnSWResume, btnSWReset, btnSWPause, btnSWRecord;
private ListView lvWatchTimeList;
private ArrayAdapter<String> adapter;
private static final int MSG_WHAT_SHOW_TIME = 1;
public StopWatchView(Context context) {
super(context);
}
public StopWatchView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public StopWatchView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
@Override
protected void onFinishInflate(){
super.onFinishInflate();
tvHour = (TextView)findViewById(R.id.tvHour);
tvHour.setText("0");
tvMinute = (TextView)findViewById(R.id.tvMinute);
tvMinute.setText("0");
tvSecond = (TextView)findViewById(R.id.tvSecond);
tvSecond.setText("0");
tvMSecond = (TextView)findViewById(R.id.tvMSceond);
tvMSecond.setText("0");
btnSWRecord = (Button)findViewById(R.id.btnSWRecord);
btnSWRecord.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
adapter.insert(String.format("%d:%d:%d.%d",
tenMSecs/100/60/60,
tenMSecs/100/60%60,
tenMSecs/100%60,
tenMSecs%100),
0);
}
});
btnSWPause = (Button)findViewById(R.id.btnSWPause);
btnSWPause.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
stopTimer();
btnSWPause.setVisibility(View.GONE);
btnSWResume.setVisibility(View.VISIBLE);
btnSWReset.setVisibility(View.VISIBLE);
btnSWRecord.setVisibility(View.GONE);
}
});
btnSWReset = (Button)findViewById(R.id.btnSWReset);
btnSWReset.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
stopTimer();
tenMSecs = 0;
adapter.clear();
btnSWStart.setVisibility(View.VISIBLE);
btnSWPause.setVisibility(View.GONE);
btnSWReset.setVisibility(View.GONE);
btnSWRecord.setVisibility(View.GONE);
btnSWResume.setVisibility(View.GONE);
}
});
btnSWResume = (Button)findViewById(R.id.btnSWResume);
btnSWResume.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
startTimer();
btnSWResume.setVisibility(View.GONE);
btnSWReset.setVisibility(View.GONE);
btnSWRecord.setVisibility(View.VISIBLE);
btnSWPause.setVisibility(View.VISIBLE);
}
});
btnSWStart = (Button)findViewById(R.id.btnSWStart);
btnSWStart.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
startTimer();
btnSWStart.setVisibility(View.GONE);
btnSWPause.setVisibility(View.VISIBLE);
btnSWRecord.setVisibility(View.VISIBLE);
}
});
btnSWRecord.setVisibility(View.GONE);
btnSWPause.setVisibility(View.GONE);
btnSWReset.setVisibility(View.GONE);
btnSWResume.setVisibility(View.GONE);
lvWatchTimeList = (ListView)findViewById(R.id.lvWatchTimeList);
adapter = new ArrayAdapter<String>(getContext(),
android.R.layout.simple_list_item_1);
lvWatchTimeList.setAdapter(adapter);
showTimeTask = new TimerTask() {
@Override
public void run() {
handler.sendEmptyMessage(MSG_WHAT_SHOW_TIME);
}
};
timer.schedule(showTimeTask,200,200);
}
private void startTimer(){
if(timerTask == null){
timerTask = new TimerTask() {
@Override
public void run() {
tenMSecs++;
}
};
timer.schedule(timerTask,10,10);
}
}
private void stopTimer(){
if(timerTask != null){
timerTask.cancel();
timerTask = null;
}
}
public void onDestory(){
timer.cancel();
}
private Handler handler = new Handler(){
public void handleMessage(Message msg){
switch (msg.what){
case MSG_WHAT_SHOW_TIME:
tvHour.setText(tenMSecs/100/60/60+"");
tvMinute.setText(tenMSecs/100/60%60+"");
tvSecond.setText(tenMSecs/100%60+"");
tvMSecond.setText(tenMSecs%100+"");
break;
default:
break;
}
};
};
}
您可以實現該按鈕的觸摸事件。當有觸摸事件時,你可以完成你的任務。 –