android开发笔记--时间控件只显示年月不显示日期【如有需要可以更为只显示月日不显示年份】

来源：互联网发布：龙族js挂机脚本编辑：程序博客网时间：2024/06/05 20:54

在2.2系统中DatePicker控件保含了一个LinearLayout子view，而LinearLayout中包含三个NumberPicker控件分别用来显示年月日NumberPicker控件中又包含了三个子view。
因此只要找到显示日的控件，然后将其隐藏掉，就可以了。

 if (dp != null) {            ((ViewGroup) dp.getChildAt(0)).getChildAt(0).setVisibility(View.GONE);  }

在4.0系统中DatePicker中view层次结构与2.2不同，多了一层：
DatePicker包含了一个子view:LinearLayout.

LinearLayout中包含了两个子view：LinearLayout和CalendarView.

子LiearLayout中包含了三个NumberPicker控件

----------------------------重要代码---------------------------------------------------------

<span style="white-space:pre"></span>/** * 自定义年月控件 *  * @author xingyimin *  */class CustomerDatePickerDialog extends DatePickerDialog {public CustomerDatePickerDialog(Context context,OnDateSetListener callBack, int year, int monthOfYear,int dayOfMonth) {super(context,android.R.style.Theme_Holo_Light_Dialog, callBack, year, monthOfYear, dayOfMonth);}@Overridepublic void onDateChanged(DatePicker view, int year, int month, int day) {dpDialog.setTitle(year + "年" + (month + 1) + "月");}}

/** * 从当前Dialog中查找DatePicker子控件 *  * @param group * @return */private DatePicker findDatePicker(ViewGroup group) {if (group != null) {for (int i = 0, j = group.getChildCount(); i < j; i++) {View child = group.getChildAt(i);if (child instanceof DatePicker) {return (DatePicker) child;} else if (child instanceof ViewGroup) {DatePicker result = findDatePicker((ViewGroup) child);if (result != null)return result;}}}return null;}

<span style="white-space:pre"></span>/** * 日期控件回调函数 */private OnDateSetListener setDateCallBack = new OnDateSetListener() {public void onDateSet(DatePicker view, int year, int monthOfYear,int dayOfMonth) {Calendar calendar = Calendar.getInstance();calendar.set(year, monthOfYear, dayOfMonth);date = new SimpleDateFormat("yyyy-MM-dd").format(calendar.getTime());tvDate.setText(new SimpleDateFormat("yyyy-MM").format(calendar.getTime()));}};

//调用方法显示

<span style="white-space:pre"></span>       final Calendar cal = Calendar.getInstance();DatePickerDialog dpDialog = new CustomerDatePickerDialog(context, setDateCallBack,cal.get(Calendar.YEAR), cal.get(Calendar.MONTH),cal.get(Calendar.DAY_OF_MONTH));dpDialog.setTitle(cal.get(Calendar.YEAR) + "年"+ cal.get(Calendar.MONTH) + "月");dpDialog.show();DatePicker dp = findDatePicker((ViewGroup) dpDialog.getWindow().getDecorView());if (dp != null) {((ViewGroup) dp.getChildAt(0)).getChildAt(1).setVisibility(View.GONE);((ViewGroup) ((ViewGroup) dp.getChildAt(0)).getChildAt(0)).getChildAt(2).setVisibility(View.GONE);}

显示如图：

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