I've been checking some Material Theming examples recently and I found the usage of ?colorPrimary instead of ?attr/colorPrimary is there any difference between them?
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Dawid Hyży
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1See this: https://stackoverflow.com/a/38165203/1631967 – aminography Jul 29 '20 at 09:20
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This doesn't answer my question. I'm not asking about the difference between `?android:attr/colorPrimary` and `?attr/colorPrimary` – Dawid Hyży Jul 29 '20 at 09:33
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You can check the [doc](https://developer.android.com/guide/topics/resources/providing-resources#ReferencesToThemeAttributes): *Because the system resource tool knows that an attribute resource is expected in this context, you do not need to explicitly state the type—you can exclude the attr type* – Gabriele Mariotti Jul 29 '20 at 09:49