Android: how to dismiss a DatePicker DialogFragmen

问题:

I have a working DatePickerFragment that extends DialogFragment. I set up a DatePickerDialog in onCreateDialog() and then tried to add:

"picker.setCanceledOnTouchOutside(true);"

I am testing on a device with Android 8.0 Oreo and nothing happens when touching outside the DatePicker dialog. I am using androidx.appcompat.app.AppCompatActivity as my BaseActivity and androidx.fragment.app.DialogFragment for the DialogFragment;

Code:

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    super.onCreateDialog(savedInstanceState);

    DatePickerDialog picker = new DatePickerDialog(getActivity(),this,year,month,day);
    **picker.setCanceledOnTouchOutside(true);**
    return picker;

This is the Activity code that creates the Fragment:

DatePickerFragment newFragment = new DatePickerFragment();
// tried the below also, with no luck
**newFragment.setCancelable(true);**
newFragment.show(getSupportFragmentManager(), "datePicker");

I also tried the below in the DialogFragment, also with no luck:

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
   ...
   getDialog().setCanceledOnTouchOutside(true);
   ... 
   }

and:

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    if (getDialog() != null) {
        getDialog().setCanceledOnTouchOutside(true);
    }
    return super.onCreateView(inflater, container, savedInstanceState);
}    

I referenced this post for possible answers: How to dismiss a DialogFragment when pressing outside the dialog?. What am I missing here?

回答1:

if you want to dismiss Dialog that extends DialogFragment, write

setCancelable(true);

inside onCreateView. The dialog will dismiss when you touching outside.

example code :

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
     setCancelable(true);
     return super.onCreateView(inflater, container, savedInstanceState);
}

回答2:

did you try to set the dialog to cancelable

picker.setCancelable(true);

回答3:

I thought I have similar problem, but it seems in my case that dialog has some shadow padding around it and I had to click outside of it very close to the edge of the screen to cancel it.

This is how i create my dialog:

val calendar = Calendar.getInstance()
val year = calendar.get(Calendar.YEAR)
val month = calendar.get(Calendar.MONTH)
val day = calendar.get(Calendar.DAY_OF_MONTH)

val dpd = context?.let {
    DatePickerDialog(it, DatePickerDialog.OnDateSetListener { _, pickedYear, pickedMonth, pickedDay ->

         //do something with picked date.

    }, year, month, day)
}

dpd?.setCanceledOnTouchOutside(true)
dpd?.show()

Try to set setCanceledOnTouchOutside(true) in your implementation and try to dismiss it on tap very close to the edge of the screen, maybe test it on some big screen emulator like Pixel 3 XL. Now i know that this is not a solution and you need to handle all kind of devices and screen sizes, but I want you to verify that you might have same problem as me: that dialog will be canceled on touch outside, but this "outside" is not so obvious and it might be a real problem.

回答4:

Just add setCancelable(true) in your Dialog onCreate method or in constructor

回答5:

Try to use the default DatePickerDialog from android which is default close when selecting out side the dialog.

Try this is still issue let me know will send the proper code for same