CODEWITHSUNDEEP
androidgridview
Vanik
Vanik

Reputation: 41

Android:GridView

I am beginner in Android development. At the moment, I am working a calculator. I want to use GridView in button part, but i have one error: 

Caused by:java.lang.IllegalArgumentException: can't have a viewTypeCount < 1

First i make class ButtonAdapter and implements ListAdapter. But i cant understand this error.

Please help me

Upvotes: 3

Views: 1752

Answers (2)

azelez
azelez

Reputation: 2529

Maybe you are missing some data in the Gridview:

check this tutorial it can help you understand what you missed.

http://www.firstdroid.com/2011/02/06/android-tutorial-gridview-with-icon-and-text/

BR, Adrian.

Upvotes: 1

uaraven
uaraven

Reputation: 1107

getViewTypeCount should return the number of different views your GridView will be using. This number is used internally by Android to optimize view creation.

If all of items in your grid view are the same type, you should return 1. 

@Override
public int getViewTypeCount() {
    return 1;
}

There should be at least one type of the view, and your implementation probably returns 0. That's why you're getting the exception.

Upvotes: 4

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