What is the difference between the Android Development Tools and the Android SDK Tools and the Android SDK Platform-tools and the Android SDK Build-tools?
And why not merge some of them into fewer groups? The 4 tools confused me when I downgrading/upgrading them.
Well, the Android Development Tools(ADT) is a plugin that is used in combination with Eclipse to develop apps.There is an ADT bundle that is a package that contains everything you need to start creating apps.
However the SDK Tools is a downloadable component for the Android SDK. It includes the complete set of development and debugging tools for the Android SDK.
What I'd recommend is that you download the ADT Bundle. It contains everything you need. At last Google I/O Android Studio was introduced but It's still in its beta version. It basically does what ADT does and allows you to view how your app will appear on many different devices.