Android代码android里面的一个库能让java8把lambda带上java7和6一起玩

GradleRetrolambdaPluginThispluginwillautomaticallybuildyourjavaorandroidprojectwithretrolambda,givingyoulambdagoodnessonjava6or7.ItreliesonthewonderfulretrolambdabyEskoLuontola.Note:Theminimumandroidgradlepluginis1.5.0andtheminimumgradlepluginis2.5.UsageDownloadjdk8andsetitas