仅显示android中的棒棒糖5.0的月份和年份的日期选择器

Question

显示日期选择器的月份和年份仅适用于Android中的棒棒糖5.0,它可以在较低版本中完成,但我怎样才能为Android 5.0做到这一点.

Answer 1

这可以通过将DatePicker设置为spinner模式并获取Spinner for Day并以编程方式隐藏它来完成.

这是XML(dialog_date_picker.xml):

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:padding="8dp"
    android:layout_height="match_parent">

    <DatePicker
        android:id="@+id/date_picker"
        android:layout_width="match_parent"
        android:calendarViewShown="false"
        android:datePickerMode="spinner"
        android:layout_weight="4"
        android:layout_height="0dp"
        />

    <Button
        android:id="@+id/date_time_set"
        android:layout_weight="1"
        android:layout_width="match_parent"
        android:text="Set"
        android:layout_height="0dp" />

</LinearLayout>

这是执行此操作的代码.

private Calendar mCalendar;
...

mCalendar = Calendar.getInstance();

final View dialogView = View.inflate(this, R.layout.dialog_date_picker, null);
final AlertDialog alertDialog = new AlertDialog.Builder(this).create();

DatePicker datePicker = (DatePicker) dialogView.findViewById(R.id.date_picker);

datePicker.init(mCalendar.get(Calendar.YEAR),mCalendar.get(Calendar.MONTH),mCalendar.get(Calendar.DAY_OF_MONTH),null);


LinearLayout ll = (LinearLayout)datePicker.getChildAt(0);
LinearLayout ll2 = (LinearLayout)ll.getChildAt(0);
ll2.getChildAt(0).setVisibility(View.INVISIBLE);

dialogView.findViewById(R.id.date_time_set).setOnClickListener(new View.OnClickListener()
{
  @Override
  public void onClick(View view)
  {    
    DatePicker datePicker = (DatePicker) dialogView.findViewById(R.id.date_picker);

    mCalendar = new GregorianCalendar(datePicker.getYear(),
    datePicker.getMonth(),
    datePicker.getDayOfMonth());

    alertDialog.dismiss();
    }
});