Android: Error when scrolling down to the bottom of an ListView

Question

I found a error that I didn't know about, I am using a List, when I am scrolling down to the bottom of the list it throws an error, why does this occur? I am getting the items from a service, and everything looks fine in ListView .

this is the error that it trows out.

09-25 16:58:01.865: ERROR/AndroidRuntime(609): FATAL EXCEPTION: main
09-25 16:58:01.865: ERROR/AndroidRuntime(609): java.lang.NullPointerException
09-25 16:58:01.865: ERROR/AndroidRuntime(609):     at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:355)
09-25 16:58:01.865: ERROR/AndroidRuntime(609):     at android.widget.ArrayAdapter.getView(ArrayAdapter.java:323)
....
....

Answer 1

似乎ArrayAdapter中的一项为空-因此，如果向下滚动到该项，则会得到NullPointerException。