b.getCharSequence is giving me a null pointer exception error

Question

I'm trying to display the login on the navigation drawer header , it worked fine when I used this piece if code

Bundle b = getIntent().getExtras();
name.setText(b.getCharSequence("username"));

But when I tried going back to the navigation drawer from another activity using the back arrow my app crashes my logcat says null pointer exception on this line

name.setText(b.getCharSequence("username"));

P.S the username is name of the variable on my php code.. help

score 1 · Answer 1 · answered Apr 24 '17 at 16:35

1

It might likely be that you might have finished yourActivity.class and starting other activity. Now when you press back button, you might have started the activity with contains the code. Here you might have missed to provide the username in the intent. Thus, in your activity - the null reference is pointed your textView resulting in NPE.

answered Apr 24 '17 at 16:35

Sanjog Shrestha

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the thing is, i used a basic activity with a hierarchical parent to go back to the previous one so there is no intent .. do you have a any suggestions ? – Akramqq Apr 24 '17 at 16:39
If there is no intent, what is your bundle (getIntent()) doing? – Sanjog Shrestha Apr 24 '17 at 16:40
i'm using the bundle getIntent to pass the login ( username) to my navigation drawer header .. – Akramqq Apr 24 '17 at 16:42
I suggest you to store those datas in the preference and use it from there. This way you will have no worry about the issue you have been facing. – Sanjog Shrestha Apr 24 '17 at 16:43
i don't how to do that exactly but i'll look it up.. thanks anyway – Akramqq Apr 24 '17 at 16:45

b.getCharSequence is giving me a null pointer exception error

1 Answers1