Draw something first on the onDraw of a customized view
If I say setBackGroundResource(), onDraw doesn't work So I can't update my screen...
What should I do?
android
If the purpose is to call the onDraw() function, call the invalidate() function of the View class. For a detailed description of the function, search for the link below and related keywords.
https://developer.android.com/reference/android/view/View.html#invalidate()
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