我制作了editText
,用于显示TimePicker
。
static Calendar c = null;
static int hour;
static int min;
static int hour1, min1;
time = (EditText) promptView.findViewById(R.id.time);
time.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Fragment fragDialog = getActivity().getSupportFragmentManager().findFragmentByTag("TimePicker");
if (fragDialog == null) { // Fragment not added
FragmentTransaction ft = getActivity().getSupportFragmentManager().beginTransaction();
tp.show(ft, "TimePicker");
} else {
// already active
}
}
});
public static class TimePick extends android.support.v4.app.DialogFragment implements TimePickerDialog.OnTimeSetListener {
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
c = Calendar.getInstance();
hour = c.get(Calendar.HOUR_OF_DAY);
min = c.get(Calendar.MINUTE);
return new TimePickerDialog(getActivity(), this, hour, min, DateFormat.is24HourFormat(getActivity()));
}
@Override
public void onTimeSet(TimePicker view, int hourofDay, int minute) {
time.setText(Integer.toString(hourofDay) + ":" + Integer.toString(minute));
hour1 = hourofDay;
min1 = minute;
}
}
点击保存button
后,它会将所选时间传递给AlarmManager
,并显示分钟和小时。
save.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Calendar alarm = Calendar.getInstance();
alarm.set(Calendar.HOUR_OF_DAY, hour1);
alarm.set(Calendar.MINUTE, min1);
alarm.set(Calendar.SECOND, 0);
Toast.makeText(getActivity(), hour1 + "" + min1, Toast.LENGTH_SHORT).show();
Intent myIntent = new Intent(getActivity(), MyReceiver.class);
pendingIntent = PendingIntent.getBroadcast(getActivity(), 0, myIntent, 0);
AlarmManager alarmManager = (AlarmManager) getActivity().getSystemService(getActivity().ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC, alarm.getTimeInMillis(), pendingIntent);
}
});
alert.setView(promptView);
alert.show();
}
假设我选择时间为11小时,分钟为20并单击保存,正确显示Toast显示1120
。但在第二次,我点击保存而不点击时间editText
,Toast
应显示00
,但它会显示之前的结果1120
。
答案 0 :(得分:1)
我无法确定,因为,一方面,我没有完整的代码,另一方面,我不知道你的意思是“第二次”。
但是你的变量被声明为 static ,这意味着即使你破坏了那个对象,下次你实例化一个新对象时,这些变量也将拥有它们之前的值。实例。这是因为,静态变量在同一个类的所有实例中共享和保留。
public class Foo {
static int bar;
}
Foo a = new Foo();
a.bar = 3;
Foo b = new Foo();
Log.d("tag", "value = " + b.bar); // this will print 3
编辑:
如果您仍然希望以这种方式使用这些变量,则需要先在某处清除它们,但是由您决定最佳位置。
hour1 = 0;
min1 = 0;