Android代码RxJava3 预览版 Demo

RxJava3-preview Discontinued.Version3developmentwillbebranchedoffof2.xsometimeafter2.2hasbeenfinalizedinthemainRxJavarepository. Previewforversion3ofRxJava,themodernReactiveXstylelibraryforcomposing(a)synchronoussequencesofdataandevents. Dependency //share