Android-将数据从片段传递到新的Java类

Question

I am trying to pass an integer from a fragment to another java class however I keep getting an error: Attempt to invoke virtual method 'int android.os.Bundle.getInt(java.lang.String, int)' on a null object reference

Bundle b = new Bundle();
b.putInt("id", position);
Intent passInt = new Intent(view.getContext(), displayAccount.class);
passInt.putExtras(b);

startActivity(passInt);
startActivity(new Intent(view.getContext(), displayAccount.class));

Then in displayAccount.java:

 int id = (getIntent().getExtras().getInt("id",0));

Answer 1

You called double times startActivity . It will be work when you delete this line startActivity(new Intent(view.getContext(), displayAccount.class)); . Because you didn't put bundle on this line, you just starting the activity. You already give intent with startActivity(passInt);