CODEWITHSUNDEEP
javaandroidandroid-recyclerviewandroid-cardview
Bin power93
Bin power93

Reputation: 127

Android RecyclerView LayoutManager Exception

Hi I'm having an issue with the new Android Lollipop RecyclerView

It keeps crashing with the following exception: 

Attempt to invoke virtual method 'void android.support.v7.widget.RecyclerView$LayoutManager.onMeasure(android.support.v7.widget.RecyclerView$Recycler, android.support.v7.widget.RecyclerView$State, int, int)' on a null object reference

Full stack trace can found here

The code used to initiate the RecyclerView is the same mostly the same as the tutorial, however for some reason this still complains. Any help would be greatly appreciated.

The code can be accessed at: gist here and layout: this gist

None of the views, or objects are null

Upvotes: 11

Views: 10250

Answers (2)

Muhammad Qasim
Muhammad Qasim

Reputation: 461

In the android Api level 22 it will not give the error. Instead it skips the layout if the Adapter is not found.

By showing the warning:

RecyclerView﹕ No adapter attached; skipping layout

But your app will not crash and runs, but recyclerView doesn't shown.

Upvotes: 2

Udi Oshi
Udi Oshi

Reputation: 6867

Add the following code:

    LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
    layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
    recyclerView.setLayoutManager(layoutManager);

Before adding adapter:

recyclerView.setAdapter(adapter);

Upvotes: 11

Related Questions