Android SDK Manager - Do you need to install all android platforms?

Question

I just recently downloaded the Android SDK. Downloading all the packages in the SDK Manager will take way too much time. So I\'m wondering whether I should deselect all the plat

Answer 1

No, You don't need to download everything for every platform. You need to download only for those you are going to develop your application. E.g. If you are going to develop an application for Android 2.3.3 (API 10) then you only need to download for specific that platform only. You can choose to download support libraries from extra (If you need that).

EDIT
You also don't need to download all build tools. It's better if you use the latest one. For more queries on build-tools you can look at this questions:
What are the Android SDK build-tools, platform-tools and tools? And which version should be used?