code Error in DatePickerDialog

Question

I think I is just a small mistake but I cant find it. In the following code my whole @Override method is marked as "false".

        inputBill.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                final Calendar calendar = Calendar.getInstance();
                mDay = calendar.get(Calendar.DAY_OF_MONTH);
                mMonth = calendar.get(Calendar.MONTH);
                mYear = calendar.get(Calendar.YEAR);

                DatePickerDialog dpd = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
                    @Override
                    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                        inputBill.setText(dayOfMonth + "." + monthOfYear + "." + year);
                    }
                }, mYear, mMonth, mDay);
            dpd.show();
            }
        });

Error:(162, 61) error: incompatible types: cannot be converted to Context — Rod Kimble, Oct 30 '15 at 09:56

Pankaj Kumar · Accepted Answer · 2015-10-30T10:10:14.840

2

You can not use instance of View.OnFocusChangeListener to show dialog. For Alerts you always need Activity context, So you need to use current activity instance there.

Problem is

DatePickerDialog dpd = new DatePickerDialog(**this**, new DatePickerDialog.OnDateSetListener() {

use

DatePickerDialog dpd = new DatePickerDialog(ACTIVITY_NAME.this, new DatePickerDialog.OnDateSetListener() {

edited Oct 30 '15 at 10:10

answered Oct 30 '15 at 09:56

Pankaj Kumar

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"You can accept this answer in 3 minutes" be patient :P – Rod Kimble Oct 30 '15 at 10:04

IntelliJ Amiya · Answer 2 · 2015-10-30T10:09:25.400

1

Edited

You can use getContext()

 DatePickerDialog dpd = new DatePickerDialog(getContext(), new DatePickerDialog.OnDateSetListener()

edited Oct 30 '15 at 10:09

answered Oct 30 '15 at 09:59

IntelliJ Amiya

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AFAIK, `getApplicationContext()` is not suitable here. – frogatto Oct 30 '15 at 10:04
getApplicationContext().this ?? – IntelliJ Amiya Oct 30 '15 at 10:04
1

http://stackoverflow.com/questions/9122627/should-i-use-getapplicationcontext-or-activity-this-in-a-long-running-asynctask – frogatto Oct 30 '15 at 10:06
1

This is inside a Fragment. I use `getContext()`now – Rod Kimble Oct 30 '15 at 10:06
1

Generally, for in-activity UI stuff, application context is not suitable. – frogatto Oct 30 '15 at 10:07

score 1 · Answer 3 · answered Oct 30 '15 at 10:03

As a side note to @Pankaj Kumar's answer:

Whenever you instantiate an anonymous class, inside that class this refers to the instantiating class not your main class.

public class MainClass{
    public method(){
        new AnotherClass(){
            public someMethod(){
                Object o1 = this;
                Object o2 = MainClass.this;
            }
        }
    }
}

In this example:

o1: Points to current instance of AnotherClass.
o2: Points to current instance of MainClass.

code Error in DatePickerDialog

3 Answers3

Edited