What’sinThisBook?Chapter1takesyouthroughthestepsofsettinguptheAndroiddevelopmentenvi‐ronmentandbuildingseveralsimpleapplicationsofthewell-known“Hello,World”typepioneeredbyBrianKernighan.Chapter2coverssomeofthedifferencesinmobilecomputingthatwillhitdeveloperscomingfromdesktopandente