CODEWITHSUNDEEP
javaandroidnullpointerexception
remy boys
remy boys

Reputation: 2948

Cant trace out cause of error java.lang.NullPointerException

why sometimes this code is throwing errors and sometime not ??

 if ( getActivity().getApplicationContext() != null ){
    File file = new File(getActivity().getApplicationContext().getFilesDir() + "/img.jpg"); }

the above code is inside my fragment

my Error:

java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.Context android.support.v4.app.FragmentActivity.getApplicationContext()' on a null object reference

Upvotes: 0

Views: 77

Answers (1)

Ramesh
Ramesh

Reputation: 1287

If you are running this in seperate AsyncTask or thread and activity that has started this no longer exists or active. getActivity() might return null.

So solution is to add null check for getActivity() too along with getActivity().getApplicationContext().

Upvotes: 3

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