Android DatePicker 顯示問題 可分別隱藏年、月或日

 可分別隱藏DatePicker中年、月、日：

			final DatePicker datePicker = (DatePicker) onTouchView
					.findViewById(R.id.date_picker);
			if (datePicker != null) {
				try {
					Field f[] = datePicker.getClass().getDeclaredFields();
					 //隱藏年份
					 for (Field field : f) {
					 if (field.getName().equals("mYearPicker")
					 || field.getName().equals("mYearSpinner")) {
					 field.setAccessible(true);
					 Object yearPicker = new Object();
					 yearPicker = field.get(datePicker);
					 ((View) yearPicker).setVisibility(View.GONE);
					 }
					 }
					// 隱藏月份
					 for (Field field : f) {
					 if (field.getName().equals("mMonthPicker")
					 || field.getName().equals("mMonthSpinner")) {
					 field.setAccessible(true);
					 Object monthPicker = new Object();
					 monthPicker = field.get(datePicker);
					 ((View) monthPicker).setVisibility(View.GONE);
					 }
					 }
					 //隱藏日
					 for (Field field : f) {
					 if (field.getName().equals("mDayPicker")
					 || field.getName().equals("mDaySpinner")) {
					 field.setAccessible(true);
					 Object dayPicker = new Object();
					 dayPicker = field.get(datePicker);
					 ((View) dayPicker).setVisibility(View.GONE);
					 }
					 }
				} catch (SecurityException e) {
					Log.e("ERROR", e.getMessage());
				} catch (IllegalArgumentException e) {
					Log.e("ERROR", e.getMessage());
				} catch (IllegalAccessException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}

例如要隱藏年份，只需加入以下代碼：

// 隱藏年份
					for (Field field : f) {
						if (field.getName().equals("mYearPicker")
								|| field.getName().equals("mYearSpinner")) {
							field.setAccessible(true);
							Object yearPicker = new Object();
							yearPicker = field.get(datePicker);
							((View) yearPicker).setVisibility(View.GONE);
						}
			

還有一種方式，不過與日期顯示格式有關，故不推薦使用，方法如下：

	 ((LinearLayout) ((ViewGroup)
	 datePicker.getChildAt(0)).getChildAt(0)).getChildAt(0).setVisibility(View.GONE);
	 //0 0 0 月日
	 //0 0 1 年日
	 //0 0 2 年月