Android support library wrong version

Question

I have a problem while building my android project due to some missing android-support-library (ie: android-support-v7.jar) so to fix it I had to add an Android Support Library from eclipse wizard. However I was surprised that my $android_sdk_home/extras/andoird/support/v7/appcompact/libs contains android-support-v4.jar and android-support-v7-appcompat.jar . Is that normal?

Answer 1

If I understood you correctly, you're wondering if having both v4 and v7 support libraries is normal. It is perfectly normal as they have different purposes. Basically they provide you with widgets and APIs to be used respectively in API levels 4 and 7 and beyond. They also provide different interfaces.

You can read about it here in more detail: https://developer.android.com/topic/libraries/support-library/features.html