CODEWITHSUNDEEP
androidandroid-studioandroid-asynctask
Bogdan Daniel
Bogdan Daniel

Reputation: 2759

How to get application's context in other method than onCreate in Android Studio?

I have an async task which eventually creates the parameters email,about. The async task is in the onCreate method, and so is this CustomListAdapter. I want to move the CustomListAdapter from onCreate in the asyncTask in onPostExecute.My problem is that this means the context of the application. When I move it in onPostExecute it doesn't get that context anymore. I tried to replace it with getApplicationContext() , activityName.this.getApplicationContext but it doesn't work because it's expecting the context of the application. I found this Static way to get 'Context' on Android? but I can't define a name in the manifest for some reason. What other method of getting the application's context can I use in the onPostExecute method of the asyncTask? Or should I just make an Asynck task with the context as a parameter ?

CustomListAdapter adapter=new CustomListAdapter(this, email,about);
                list=(ListView)findViewById(R.id.list);


 list.setAdapter(adapter);

            list.setOnItemClickListener(new AdapterView.OnItemClickListener() {

                @Override
                public void onItemClick(AdapterView<?> parent, View view,
                                        int position, long id) {
                    // TODO Auto-generated method stub
                    String Slecteditem= email.get(position);
                    Toast.makeText(getApplicationContext(), Slecteditem, Toast.LENGTH_SHORT).show();

                }
            });

Upvotes: 0

Views: 20363

Answers (2)

Mithun
Mithun

Reputation: 2075

You can pass context of your Activity component in constructor of your CustomAysncTasklike in below code snippet and use it. But always make proper check for null 

MyActivity activity
public CustomAsycTask(MyActivity activity) {
   this.activity=activity;
}

Update: As Tomer Shemesh pointed out

private WeakReference<MyActivity> activity = null;

public CustomAsycTask(MyActivity activity) {
    activity= new WeakReference<MyActivity>(activity);
}

and for accessing it:

final MyActivity iActivity = activity.get();

Upvotes: 1

Tomer Shemesh
Tomer Shemesh

Reputation: 13405

If your activities name is MyActivity, you can always just use MyActivity.this to get its context

Upvotes: 7

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