I am new to android developments. I am setting up my android development environment using Eclipse. I have a test smart phone with Android version 4.2.2. The automatic installation installed the latest Android SDK version, which is 5.1.1. My questions are: 1. Do I have to install the SDK version 4.2.2 to test on my test mobile with Android 4.2.2.? 2. What will happened if I do not install SDK version 4.2.2 and try to run app developed with SDK version 5.1.1? 3. If I have 3 or more Android units, each with different Android version, then do I have to install all the matching SDK versions?
Thank you for your help. regards, John