[Android]只显示月和日的DatePickerDialog
一、效果图
1.1 默认
1.2 处理后
二、实现代码
2.1 代码片段1
/**
* 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;
* 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;
}
代码说明：
通过断点也看到Dialog的ContentView里有DatePicker子控件，这里通过遍历的办法来查找这个控件。
通过断点也看到Dialog的ContentView里有DatePicker子控件，这里通过遍历的办法来查找这个控件。
2.2 使用代码
final Calendar cal = Calendar.getInstance();
mDialog = new CustomerDatePickerDialog(getContext(), this,
cal.get(Calendar.YEAR), cal.get(Calendar.MONTH),
cal.get(Calendar.DAY_OF_MONTH));
mDialog.show();
DatePicker dp = findDatePicker((ViewGroup) mDialog.getWindow().getDecorView());
if (dp != null) {
((ViewGroup) dp.getChildAt(0)).getChildAt(0).setVisibility(View.GONE);
mDialog = new CustomerDatePickerDialog(getContext(), this,
cal.get(Calendar.YEAR), cal.get(Calendar.MONTH),
cal.get(Calendar.DAY_OF_MONTH));
mDialog.show();
DatePicker dp = findDatePicker((ViewGroup) mDialog.getWindow().getDecorView());
if (dp != null) {
((ViewGroup) dp.getChildAt(0)).getChildAt(0).setVisibility(View.GONE);
}
代码说明：
通过源码可以看得到DatePicker内置三个NumberPicker控件，依次表示年、月、日，隐藏掉第一个即可。
三、补充
后续使用中发现标题栏也要改，通过查看DatePickerDialog源码，需要自定义并实现onDateChanged方法才可实现，如下代码：
class CustomerDatePickerDialog extends DatePickerDialog {
public CustomerDatePickerDialog(Context context,
OnDateSetListener callBack, int year, int monthOfYear,
int dayOfMonth) {
super(context, callBack, year, monthOfYear, dayOfMonth);
}
@Override
public void onDateChanged(DatePicker view, int year, int month, int day) {
super.onDateChanged(view, year, month, day);
mDialog.setTitle((month + 1) + "月" + day + "日");
}
}
public CustomerDatePickerDialog(Context context,
OnDateSetListener callBack, int year, int monthOfYear,
int dayOfMonth) {
super(context, callBack, year, monthOfYear, dayOfMonth);
}
@Override
public void onDateChanged(DatePicker view, int year, int month, int day) {
super.onDateChanged(view, year, month, day);
mDialog.setTitle((month + 1) + "月" + day + "日");
}
}
本文转自博客园农民伯伯的博客，原文链接：[Android]只显示月和日的DatePickerDialog，如需转载请自行联系原博主。