I want to build a Calculator App, in which I want to format all the required buttons in such a way that, they all appears in a Grid form to me.... The one which I've made is only running on Android 4.0 & above devices...But I want that my calculator app should run on maximum Android devices(Android 2.2 & above) & which have a GridLayout in it..!
Please help me by suggesting me some code or anything else... Thanx!