paramvir-b / androidgridviewcompatlib Goto Github PK

Many thanks for the efforts, all seems to work well as far as supporting multi-selection and single selection as it were, but unable to get items to appear selected, which forces you to use a manual drawing approach, which pretty much forces you to write it from scratch anyway, If I'm missing something I'd appreciate knowing what needs to be done as far as the selector to show a checked item.

Many thanks.

I added a check for mCheckStatesC being not null for that whole block, hopefully to prevent the crash.

 boolean newValue = !mCheckStatesC.get(position, false);

java.lang.NullPointerException at com.rokoder.android.lib.support.v4.widget.GridViewCompat.performItemClick(GridViewCom at.java:1062)
at android.widget.AbsListView$PerformClick.run(AbsListView.java:1877)
at android.os.Handler.handleCallback(Handler.java:587)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3835)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:864)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
at dalvik.system.NativeStart.main(Native Method)

If your item views implements Checkable, in the framework version of the class, it will be automatically checked/unchecked.
With this compat version this needs to be done manually in the Adapter (as is shown in your sample).
I think unfortunately this cannot be fixed as the code to do that is in private methods.

However you should indicate this in the Caveats section of the readme because this may come as a surprise :) (I just spent an hour understanding what the problem was).

Thanks a lot for this lib!

First off, great work on this lib. Seems to work just as I need it to.

Just curious though, if I don't want to use checkboxes in each grid, but rather would like the entire box to highlight (just like it would in the modal_multi_select), how would I go about doing so?