问题
What is the minimum SDK version for the Android Support Library (also known as the compatibility library? Does it go all the way back to SDK 1?
回答1:
Most items in the Android Support package support back to API Level 4 (a.k.a., Android 1.6).
回答2:
The Minimum API level supported: 4
You can see more information over here:
http://developer.android.com/tools/extras/support-library.html
来源：https://stackoverflow.com/questions/11528500/android-support-library-minimum-sdk