Getting "null object reference" error while trying to send an int with Intent

Question

Code on sender Activity

Intent intent = new Intent(this, ScrollingActivity.class);
    intent.putExtra("KEY", 1);
    startActivity(intent);

Code on receiver Activity

int a = getIntent().getExtras().getInt("KEY");

While trying this getting this error log

java.lang.NullPointerException: Attempt to invoke virtual method 'android.os.Bundle android.content.Intent.getExtras()' on a null object reference

Can you help for fix it?

Possible duplicate of What is a NullReferenceException and how do I fix it? — krivtom
– krivtom, Commented Jan 20, 2016 at 20:16
The error message is telling you that the int is not being sent. Instead a null object is being picked up. — Nathan
– Nathan, Commented Jan 20, 2016 at 20:39
@MsYvette The possible duplicate has an excellent answer with 1000+ votes, which is valid for both Java and C#. The language and syntax might be different but the reason for exception and ways to debug it are very similar. — krivtom
– krivtom, Commented Jan 21, 2016 at 4:41

marcinj · Accepted Answer · 2016-01-20 19:52:45Z

2

Your error indicates that getIntent returns null reference, you should check where you are calling getIntent - it should be called inside or after Actvity.onCreate in Activity life cycle.

edited Jan 20, 2016 at 19:52

answered Jan 20, 2016 at 19:19

marcinj

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