小编mar*_*kos的帖子

我做了一个应用程序,它有一个数字选择器,范围从1到60分钟,我连接到一个重复的报警管理器.当我试一试时,我注意到它有时候不准确,要么需要更多的工作时间,要么更少.

可能是什么问题呢？

对于开始按钮:

startB.setOnClickListener(new OnClickListener()
     {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            if (startB.isChecked())
            {
            Calendar calSet = Calendar.getInstance();
            calSet.set(Calendar.MINUTE, picker2.getValue());
            calSet.set(Calendar.SECOND, 0);
            calSet.set(Calendar.MILLISECOND, 0);
            setAlarm(calSet);

            SharedPreferences.Editor editor = getPreferences(MODE_PRIVATE).edit();
            editor.putBoolean("toggleButton", startB.isChecked());
            editor.commit();
                timerHasStarted = true;

            }
        else
            {
            Intent intent = new Intent(getBaseContext(), MainReceiver.class);
            PendingIntent pendingIntent = PendingIntent.getBroadcast(getBaseContext(), RQS_1, intent, 0);
            AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
            alarmManager.cancel(pendingIntent);

            SharedPreferences.Editor editor = getPreferences(MODE_PRIVATE).edit();
            editor.putBoolean("toggleButton", startB.isChecked());
            editor.commit();
                timerHasStarted = false;

            }
        }  
        });

对于警报:

private void setAlarm(Calendar targetCal …