Update Shared Preferences From Asynctask Onpostexecute

AsyncTask onPostExecute crashes (reports nullpointerexecption) when I try to use the value I received from doInBackground to update SharedPreferences. My handle to the calling acti

Solution 1:

So problem is most likely related to Context that is assigned to NULL. I suggest you pass Context variable via constructor of AsyncTask e.q

private Context c;

publicMyTask(Context c){
   this.c = c;
}

And call it like:

new MyTask(YourCallerActivity.this).execute();

Note: I recently worked on similar issue(saving SharedPreferences in onPostExecute) and everything worked fine since i passed Context via constructor.