What can use as the first argument for the context?

Question

Here is my code for a TimePicker class I have created

picker.java

package com.example.abhijeet.todo;

import android.app.Dialog;
import android.app.DialogFragment;
import android.app.TimePickerDialog;
import android.content.Context;
import android.os.Bundle;
import android.text.format.DateFormat;
import android.view.View;
import android.widget.EditText;
import android.widget.TimePicker;

import java.util.Calendar;

/**
 * Created by Abhijeet on 9/6/2017.
 */

public class Picker extends DialogFragment implements TimePickerDialog.OnTimeSetListener {

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {

        // Use the current time as the default values for the picker
        final Calendar c = Calendar.getInstance();
        int hour = c.get(Calendar.HOUR_OF_DAY);
        int minute = c.get(Calendar.MINUTE);

        // Create a new instance of TimePickerDialog and return it
        return new TimePickerDialog(getActivity(), this, hour, minute,
                DateFormat.is24HourFormat(getActivity()));
    }



    @Override
    public void onTimeSet(TimePicker timePicker, int i, int i1) {
        //Creating a View object because this class do not extend from activity class so no findviewbyid() method is present
       View v =View.inflate(*  ?   *,R.layout.activity_editor,null);  //HERE
        //Displaying the user selected time on the Edit Text view
        EditText edittime = (EditText) v.findViewById(R.id.time_editext_field);


    }
}

I am trying to show the time selected via the picker in a edit text box. I am not able to find the right context for the argument.

I have read the answer here which explains about the different usages of the context, but that does not seem to help me.

Thank for the help in Advance.

create constructor for Picker class having Context parameter — Bapusaheb Shinde, Sep 06 '17 at 11:40
Hi, thanks for the help but I'm afraid I've tried that already. It says " Avoid non-default constructors in fragments: use a default constructor plus Fragment#setArguments(Bundle)" Does it makes sense to you @BapusahebShinde — Abhijeet Rathore, Sep 06 '17 at 11:50

Sergey Pekar · Accepted Answer · 2017-09-06T12:05:07.867

Just call getContext()

As DialogFragment is child of Fragment. So all the Fragment class method could be called in DialogFragment.

Like this

@Override
    public void onTimeSet(TimePicker timePicker, int i, int i1) {
        //Creating a View object because this class do not extend from activity class so no findviewbyid() method is present
       View v =View.inflate(getContext() ,R.layout.activity_editor,null);  //HERE
        //Displaying the user selected time on the Edit Text view
        EditText edittime = (EditText) v.findViewById(R.id.time_editext_field);
    }

You can also call getActivity() method. If you are targeting to older API than 23:

@Override
    public void onTimeSet(TimePicker timePicker, int i, int i1) {
        //Creating a View object because this class do not extend from activity class so no findviewbyid() method is present
       View v =View.inflate(getActivity() ,R.layout.activity_editor,null);  //HERE
        //Displaying the user selected time on the Edit Text view
        EditText edittime = (EditText) v.findViewById(R.id.time_editext_field);
    }

Thank you It works but shows a warning " Call requires API level 23 (current min is 21)". How can i make it supported on lower API devices while still maintaining this implementation ? — Abhijeet Rathore, Sep 06 '17 at 12:02
Wow, I have been struck at this for about an hour or so. I did try to read the documentation, what is the correct procedure for searching issues like this as i am quite sure this won't be the last and I am likely to get banned once again from asking questions Meh. — Abhijeet Rathore, Sep 06 '17 at 12:11
you should use appcompat fragments, then you could use getContext everywhere — Zharf, Sep 06 '17 at 12:12

score 0 · Answer 2 · edited Sep 06 '17 at 12:39

0

Whenever you are used. Activity -> getApplicationContext(), Fragment -> getActivity(), Adapter -> getContext()

edited Sep 06 '17 at 12:39

Leonardo Alves Machado

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answered Sep 06 '17 at 11:50

Arjun Solanki

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What can use as the first argument for the context?

2 Answers2