CODEWITHSUNDEEP
javaandroidstringandroid-intentnullpointerexception
user5669913
user5669913

Reputation:

Null pointer exception on intent.getStringExtra. : Android

I have a fragment and activity. From fragment I am passing a string named day to activity by putExtra . But getting null pointer exception when I am retrieving in an activity.

Passing a String.

private Intent i;

imageButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            day = "Mon";
            i = new Intent(getActivity(), AddEventActivity.class);
            i.putExtra("aKey", day);
            startActivityForResult(i, 1);
        }
    });

Retrieving a String :

 i = new Intent();
    dayOfWeek = i.getStringExtra("aKey");
    weekDay.setText(dayOfWeek);

Whats going wrong?

Upvotes: 0

Views: 910

Answers (4)

Dalvinder Singh
Dalvinder Singh

Reputation: 1083

String dayOfWeek = getIntent().getExtras().getString("aKey");

hope this will work.

Upvotes: 2

Phuoc Huynh
Phuoc Huynh

Reputation: 692

In activity , if you want receive data 

i = getIntent();
dayOfWeek = i.getStringExtra("aKey");
weekDay.setText(dayOfWeek);

Upvotes: -1

Mohammad Rahchamani
Mohammad Rahchamani

Reputation: 5220

you are creating a new Intent so there is no extra in it. you should retrieve passed intent in your Activity try using 

i = getIntent();

instead.

Upvotes: 0

ρяσѕρєя K
ρяσѕρєя K

Reputation: 132992

Use getIntent() in onCreate method of AddEventActivity Activity instead of new Intent() :

i = getIntent();

Also add null check before accessing any method from i.

Upvotes: 0

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