How to get context for BaseAdapter in Android

Question

I have a class named BinderData which extends BaseAdapter. I want to get the base class context. I tried to use getContext() but that doesn't work in case of BaseAdapter.

How can I get the Context of this class?

score 32 · Answer 1 · answered Feb 20 '14 at 08:39

32

One more solution-

If you have a parent, you can directly access the context like so-

 public class SampleAdapter extends BaseAdapter {

            LayoutInflater inflater;

            @Override
            public View getView(int position, View convertView, ViewGroup parent) {
                if(inflater == null){
                Context context = parent.getContext();
                inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                }
                ...
                ...

                return convertView;
            }

    }

answered Feb 20 '14 at 08:39

My God

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This should be the correct answer. @Karakuri's answer is inefficient. – The Hungry Androider Aug 29 '14 at 19:37
you saved my day god bless you. this worked like a charm – Vivek Jul 10 '19 at 14:04

score 14 · Answer 2 · answered May 16 '13 at 18:15

14

Make a constructor that takes a Context as one of its arguments and store it in a private variable.

public class SampleAdapter extends BaseAdapter {
    private Context context;

    public SampleAdapter(Context context) {
        this.context = context;
    }

    /* ... other methods ... */
}

answered May 16 '13 at 18:15

Karakuri

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I suggest you get a firm handle on Java basics before you start tackling Android specifically. – Karakuri May 16 '13 at 18:20
It is setting context as null. – Sid May 16 '13 at 18:40
Are you passing it null? You need to pass it a valid Context. – Karakuri May 16 '13 at 19:45
@Karakuri hey I also get context as a null :( – Rupesh Nerkar Jul 04 '13 at 05:58
For those getting Context null check how you are creating Adapter object. If you creating it from Activity's onCreate method you can simply pass `getApplicationContext()` or `this`. – Aniket Thakur Mar 17 '15 at 16:53

score 5 · Answer 3 · edited Jan 19 '16 at 13:46

5

Context context = parent.getContext();

edited Jan 19 '16 at 13:46

Rohit5k2

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answered Jun 14 '14 at 05:21

Ajay Pandya

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How to get context for BaseAdapter in Android

3 Answers3

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