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Android Build a Self-Destructing Message Android App Retrieving and Viewing Messages Using Picasso to View Images from the Web

Ilya Liverts
Ilya Liverts
9,677 Points
Posted by Ilya Liverts
Ilya Liverts
9,677 Points

Null Pointer Exception in onListItemClick()

When I try to click on item ,Ribbit crashes with runtime exception:

04-17 10:53:31.691 1261-1261/com.teamtreehouse.ribbit E/AndroidRuntime? FATAL EXCEPTION: main java.lang.NullPointerException at com.teamtreehouse.ribbit.InboxFragment.onListItemClick(InboxFragment.java:70) at android.support.v4.app.ListFragment$2.onItemClick(ListFragment.java:58) at android.widget.AdapterView.performItemClick(AdapterView.java:298) at android.widget.AbsListView.performItemClick(AbsListView.java:1100) at android.widget.AbsListView$PerformClick.run(AbsListView.java:2788) at android.widget.AbsListView$1.run(AbsListView.java:3463) at android.os.Handler.handleCallback(Handler.java:730) at android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:5103) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:525) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) at dalvik.system.NativeStart.main(Native Method)

1 Answer

william parrish
william parrish
13,774 Points
william parrish
william parrish
13,774 Points

Well, the error is giving you this information : NullPointerException at com.teamtreehouse.ribbit.InboxFragment.onListItemClick(InboxFragment.java:70) at android.support.v4.app.ListFragment$2.onItemClick(ListFragment.java:58)

That means on line 70 of your InboxFragment, and Line 58 of your ListFragment, you are referencing something that doesnt exist or cannot be found. Start at those lines, and make sure your variables are correct. If that doesnt work, post your code from those two Fragments so we can compare them.