我试图在Android DialogFragment
中设置一个10分钟的间隔(谷歌建议),但我真的找不到办法。
这是片段类,它显示了对话框:
public class TimePickerFragment extends DialogFragment
implements TimePickerDialog.OnTimeSetListener {
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current time as the default values for the picker
final Calendar c = Calendar.getInstance();
int hour = c.get(Calendar.HOUR_OF_DAY);
int minute = c.get(Calendar.MINUTE);
// Create a new instance of TimePickerDialog and return it
return new TimePickerDialog(getActivity(), this, hour, minute,
DateFormat.is24HourFormat(getActivity()));
}
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
String realMinute= "";
switch (minute) {
case 1:
realMinute = "01";
break;
case 2:
realMinute = "02";
break;
case 3:
realMinute = "03";
break;
case 4:
realMinute = "04";
break;
case 5:
realMinute = "05";
break;
case 6:
realMinute = "06";
break;
case 7:
realMinute = "07";
break;
case 8:
realMinute = "08";
break;
case 9:
realMinute = "09";
break;
default:
realMinute = String.valueOf(minute);
break;
}
final String selectedDate = String.valueOf(hourOfDay) + ":" + realMinute;
EditText selectedTimeTxt = (EditText) getActivity().findViewById(R.id.selectedTime);
selectedTimeTxt.setText(selectedDate);
}
一切都按预期工作,但我需要的是允许用户只选择10分钟的间隔 - 例如1:10,1:20,1:30,1:40等......
是否可以修改它,或以某种方式扩展它以满足我的需求?我知道我在这里错过了一个基本点,但作为一个新手,我无法发现它。
修改
我的意见如下:
答案 0 :(得分:4)
您可以通过调用setDisplayedValues
将自己的值设置为第二个数字选择器(分钟数选择器)。但是,您首先需要找到NumberPicker
视图。
Android设备监视器,具有捕获设备屏幕和单独视图的一个很好的功能,因此您可以找到所需视图的ID(或路径):
由于您的新值数组包含6个值(0 ... 5),因此您需要将当前分钟转换为数十,因此您不会超出范围。< / p>
这是一个完整的例子:
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
final Calendar c = Calendar.getInstance();
int hour = c.get(Calendar.HOUR_OF_DAY);
// Convert current minutes to tens
// 55 = 50, 56 = 00
int minute = c.get(Calendar.MINUTE) / 10;
minute = (minute > 5) ? 0 : minute;
// Create a new instance of TimePickerDialog and return it
final TimePickerDialog tpd = new TimePickerDialog(getActivity(), this, hour, minute,
DateFormat.is24HourFormat(getActivity()));
tpd.setOnShowListener(new DialogInterface.OnShowListener() {
@Override
public void onShow(DialogInterface dialog) {
int tpLayoutId = getResources().getIdentifier("timePickerLayout", "id", "android");
ViewGroup tpLayout = (ViewGroup) tpd.findViewById(tpLayoutId);
ViewGroup layout = (ViewGroup) tpLayout.getChildAt(0);
// Customize minute NumberPicker
NumberPicker minutePicker = (NumberPicker) layout.getChildAt(2);
minutePicker.setDisplayedValues(new String[]{"00", "10", "20", "30", "40", "50"});
minutePicker.setMinValue(0);
minutePicker.setMaxValue(5);
}
});
return tpd;
}
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
minute = minute * 10;
Toast.makeText(getActivity(), "Selected minute: " + minute, Toast.LENGTH_LONG).show();
}
修改强>
使用AppCompat主题时,对话框将显示一个圆形滑块,该滑块是不可自定义的。但是,您可以告诉对话框使用较新的主题(由于您的minSdk为15,因此不会成为问题):
final TimePickerDialog tpd = new TimePickerDialog(getActivity(),
android.R.style.Theme_Holo_Light_Dialog, this, hour, minute,
DateFormat.is24HourFormat(getActivity()));