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
使用数据绑定:
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:focusable="false"
android:onClick="@{() -> viewModel.onDateEditTextClicked()}"
android:hint="@string/hint_date"
android:imeOptions="actionDone"
android:inputType="none"
android:maxLines="1"
android:text="@={viewModel.filterDate}" />
(参见focusable, inputType和onClick)
在视图模型:
public void onDateEditTextClicked() {
// do something
}
其他回答
selectDate.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
DatePickerDialog mdiDialog =new DatePickerDialog(mContext,new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
Toast.makeText(getApplicationContext(),year+ " "+monthOfYear+" "+dayOfMonth,Toast.LENGTH_LONG).show();
}
}, year, month, date);
mdiDialog.show();
}
});
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
}
}
用这个简单的技巧来做吧:
步骤1:创建一个片段对话框
public class DatePickerFragmentDialog extends DialogFragment {
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
return new DatePickerDialog(getActivity(), (DatePickerDialog.OnDateSetListener) getActivity(), year, month, day);
}
}
第二步:在必要的活动中遵循这一点
该活动必须实现:DatePickerDialog。OnDateSetListener 在按钮上设置onClickListener: DialogFragment datePicker = new DatePickerFragmentDialog(); datePicker.show(getSupportFragmentManager(), "自定义日期选择器");
步骤3:覆盖OnDateSetListener
public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.YEAR, year);
calendar.set(Calendar.MONTH, month);
calendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
@SuppressLint("SimpleDateFormat") DateFormat dateFormat = new
SimpleDateFormat("MM/dd/yyyy");
String currentDateString = dateFormat.format(calendar.getTime());
tvPaymentDate.setText(currentDateString);
}
因此,我们可以使用任何格式的日期:)
editText1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
DatePickerDialog.OnDateSetListener dpd = new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear,
int dayOfMonth) {
int s = monthOfYear + 1;
String a = dayOfMonth + "/" + s + "/" + year;
editText1.setText(a);
}
};
Time date = new Time();
DatePickerDialog d = new DatePickerDialog(UpdateStore.this, dpd, date.year, date.month, date.monthDay);
d.show();
}
});
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。
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