Android编程之TimePickerDialog设置确定键导致OnTimeSetListener不响应问题

在调用TimePickerDialog时，如果要修改TimePickerDialog中确定键的名字，就需要调用setButton(int whichButton,CharSequence text,OnClickListener listener)方法，重新设置确定键的名字。但这样直接设置，例如下面的代码，就会造成OnTimeSetListener中onTimeSet不响应。

TimePickerDialog timePickerDialog = new TimePickerDialog(this,
					new OnTimeSetListener() {
						@Override
						public void onTimeSet(TimePicker view, int hourOfDay,
								int minute) {
							System.out.println("time:" + hourOfDay + ":"
									+ minute);
						}
					}, calendar.get(Calendar.HOUR_OF_DAY),
					calendar.get(Calendar.MINUTE), false);

			timePickerDialog.setTitle(R.string.title);
			timePickerDialog.setButton(TimePickerDialog.BUTTON_POSITIVE,
					getString(R.string.ok),
					new DialogInterface.OnClickListener() {
						public void onClick(DialogInterface dialog, int which) {

						}
					});
			timePickerDialog.show();

所以，这里要改一下setButton(int whichButton, CharSequence text,OnClickListener listener)中，最后传入的参数，由OnClickListener listener改为TimePickerDialog对象本事，这样就可以响应OnTimeSetListener中onTimeSet的方法。代码如下：

			TimePickerDialog timePickerDialog = new TimePickerDialog(this,
					new OnTimeSetListener() {
						@Override
						public void onTimeSet(TimePicker view, int hourOfDay,
								int minute) {
							System.out.println("time:" + hourOfDay + ":"
									+ minute);
						}
					}, calendar.get(Calendar.HOUR_OF_DAY),
					calendar.get(Calendar.MINUTE), false);

			timePickerDialog.setTitle(R.string.title);
			timePickerDialog.setButton(TimePickerDialog.BUTTON_POSITIVE,
					getString(R.string.ok), timePickerDialog);
			timePickerDialog.show();

注意：setButton最后一个参数，不是OnClickListener对象。

补一句：DatePickerDialog也是一样的。