Android DatePicker 显示问题 可分别隐藏年、月或日

 可分别隐藏DatePicker中年、月、日：

final DatePicker datePicker = (DatePicker) onTouchView.findViewById(R.id.date_picker);if (datePicker != null) {try {Field f[] = datePicker.getClass().getDeclaredFields(); //隐藏年份 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); } }// 隐藏月份 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); } } //隐藏日 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 blocke.printStackTrace();}

例如要隐藏年份，只需加入以下代码：

// 隐藏年份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);}

还有一种方式，不过与日期显示格式有关，故不推荐使用，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