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  • How to change gridView child background at given position in android from another activity?

    @jagtapvivek127
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    Answer it

    I actually want to change particular background of grid view from another activity at user given position. But when i go to activity which contains grid view , add call gridView.getChildAt(position) i got an error .getGetChildAt() call on null object reference. NullPointerException. Thanks

    Java Android
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 1 Answer(s)

  • @tarun.joshi
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    over 7 years ago

    From your question, it seems that you want to make a change in gridview from the Activity/Fragment/Service which is not holding the gridview. 
    For changing in a view from different activity you can use following techniques:-
    • Dynamic BroadcastReceiver
    • Event Bus
    Note:- It would be good if you can provide some code so that we help you more accurately. 
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