我想显示日期选择器弹出窗口。我找到了一些例子,但我没有得到正确的。我有一个edittext,我希望当我点击edittext时,datepicker对话框应该弹出,设置日期后,日期应该显示在edittext在dd/mm/yyyy格式。请为我提供示例代码或良好的链接。
当前回答
使用片段、MvvmCross和Xamarin的解决方案。安卓
public class EnterTimeView : MvxFragment, DatePickerDialog.IOnDateSetListener
{
private EditText datePickerText;
public EnterTimeView()
{
this.RetainInstance = true;
}
public override Android.Views.View OnCreateView(Android.Views.LayoutInflater inflater, Android.Views.ViewGroup container, Android.OS.Bundle savedInstanceState)
{
this.HasOptionsMenu = true;
var ignored = base.OnCreateView(inflater, container, savedInstanceState);
var view = inflater.Inflate(Resource.Layout.EnterTimeView, container, false);
datePickerText = view.FindViewById<EditText>(Resource.Id.DatePickerEditText);
datePickerText.Focusable = false;
datePickerText.Click += delegate
{
var dialog = new DatePickerDialogFragment(Activity, Convert.ToDateTime(datePickerText.Text), this);
dialog.Show(FragmentManager, "date");
};
var set = this.CreateBindingSet<EnterTimeView, EnterTimeViewModel>();
set.Bind(datePickerText).To(vm => vm.Date);
set.Apply();
return view;
}
public void OnDateSet(Android.Widget.DatePicker view, int year, int monthOfYear, int dayOfMonth)
{
datePickerText.Text = new DateTime(year, monthOfYear + 1, dayOfMonth).ToString();
}
private class DatePickerDialogFragment : Android.Support.V4.App.DialogFragment
{
private readonly Context _context;
private DateTime _date;
private readonly DatePickerDialog.IOnDateSetListener _listener;
public DatePickerDialogFragment(Context context, DateTime date, DatePickerDialog.IOnDateSetListener listener)
{
_context = context;
_date = date;
_listener = listener;
}
public override Dialog OnCreateDialog(Bundle savedState)
{
var dialog = new DatePickerDialog(_context, _listener, _date.Year, _date.Month - 1, _date.Day);
return dialog;
}
}
其他回答
下面是一个针对懒人的Kotlin扩展函数:
fun EditText.transformIntoDatePicker(context: Context, format: String, maxDate: Date? = null) {
isFocusableInTouchMode = false
isClickable = true
isFocusable = false
val myCalendar = Calendar.getInstance()
val datePickerOnDataSetListener =
DatePickerDialog.OnDateSetListener { _, year, monthOfYear, dayOfMonth ->
myCalendar.set(Calendar.YEAR, year)
myCalendar.set(Calendar.MONTH, monthOfYear)
myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth)
val sdf = SimpleDateFormat(format, Locale.UK)
setText(sdf.format(myCalendar.time))
}
setOnClickListener {
DatePickerDialog(
context, datePickerOnDataSetListener, myCalendar
.get(Calendar.YEAR), myCalendar.get(Calendar.MONTH),
myCalendar.get(Calendar.DAY_OF_MONTH)
).run {
maxDate?.time?.also { datePicker.maxDate = it }
show()
}
}
}
用法:
在活动:
editText.transformIntoDatePicker(this, "MM/dd/yyyy")
editText.transformIntoDatePicker(this, "MM/dd/yyyy", Date())
在片段:
editText.transformIntoDatePicker(requireContext(), "MM/dd/yyyy")
editText.transformIntoDatePicker(requireContext(), "MM/dd/yyyy", Date())
这是我怎么做的:类似于选择的答案,但使用一个静态对话框类,所以它更可重用,也使用onFocusChange而不是onClick。
editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
DialogFragment datePickerFragment = new DatePickerFragment() {
@Override
public void onDateSet(DatePicker view, int year, int month, int day) {
Log.d(TAG, "onDateSet");
Calendar c = Calendar.getInstance();
c.set(year, month, day);
editText.setText(df.format(c.getTime()));
nextField.requestFocus(); //moves the focus to something else after dialog is closed
}
};
datePickerFragment.show(getActivity().getSupportFragmentManager(), "datePicker");
}
}
});
datepicker对话框。
public static class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener{
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current date as the default date in the picker
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
// Create a new instance of DatePickerDialog and return it
return new DatePickerDialog(getActivity(), this, year, month, day);
}
@Override
public void onDateSet(DatePicker view, int year, int month, int day) {
//blah
}
}
class MyClass implements OnClickListener, OnDateSetListener {
EditText editText;
this.editText = (EditText) findViewById(R.id.editText);
this.editText.setOnClickListener(this);
@Override
public void onClick(View v) {
DatePickerDialog dialog = new DatePickerDialog(this, this, 2013, 2, 18);
dialog.show();
}
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
// this.editText.setText();
}
}
我对沙玛林的解决方案。基于Linh的MvvmCross的Android:
public class DatePickerEditText : EditText, DatePickerDialog.IOnDateSetListener
{
IDisposable _clickSubscription;
public override bool Clickable => true;
protected DatePickerEditText(IntPtr javaReference, JniHandleOwnership transfer)
: base(javaReference, transfer)
=> Init();
public DatePickerEditText(Context context) : base(context)
=> Init();
public DatePickerEditText(Context context, IAttributeSet attrs)
: base(context, attrs)
=> Init();
public DatePickerEditText(Context context, IAttributeSet attrs, int defStyleAttr)
: base(context, attrs, defStyleAttr)
=> Init();
public DatePickerEditText(Context context, IAttributeSet attrs, int defStyleAttr, int defStyleRes)
: base(context, attrs, defStyleAttr, defStyleRes)
=> Init();
protected override void Dispose(bool disposing)
{
if (disposing)
{
_clickSubscription?.Dispose();
_clickSubscription = null;
}
base.Dispose(disposing);
}
public void OnDateSet(DatePicker view, int year, int month, int dayOfMonth)
=> Text = view.DateTime.ToString("d", CultureInfo.CurrentUICulture);
void Init()
{
SetFocusable(ViewFocusability.NotFocusable);
_clickSubscription = this.WeakSubscribe(nameof(Click), OnClick);
}
void OnClick(object sender, EventArgs e)
{
var date = DateTime.Today;
try
{
date = DateTime.Parse(Text, CultureInfo.CurrentUICulture);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex);
}
var dialog = new DatePickerDialog(Context,
this,
date.Year,
date.Month,
date.Day);
dialog.Show();
}
}
来杯香草沙玛林。Android版本只需将WeakSubscribe替换为EditText的Click事件的常规订阅,不要忘记在Dispose方法覆盖中取消订阅。
# 1。我想显示一个datepicker与当前日期预选(我使用butterknife注入)
@OnClick(R.id.your_view) public void onClickYourView() {
final Calendar myCalendar = Calendar.getInstance();
DatePickerDialog.OnDateSetListener date = new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
// TODO Auto-generated method stub
myCalendar.set(Calendar.YEAR, year);
myCalendar.set(Calendar.MONTH, monthOfYear);
myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
String myFormat = "dd MMMM yyyy"; // your format
SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.getDefault());
your_view.setText(sdf.format(myCalendar.getTime()));
}
};
new DatePickerDialog(mContext, date, myCalendar.get(Calendar.YEAR), myCalendar.get(Calendar.MONTH), myCalendar.get(Calendar.DAY_OF_MONTH)).show();
}
2. 如果您想预选日期,请将最后一部分替换为
new DatePickerDialog(mContext, date, 1990, 0, 1).show();
然后你可以使用myCalendar变量或直接在视图上的文本来获取它。
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