Android代码-RxJava封装的ViewStub。使用方式与RxBinding相似。

README.md RxViewStub Sketch Sometimes your layout might require complex views that are rarely used. "Gone" or "Invisible" is not a good idea fot that, because these properties can't prevent view add to the view hierarchy and also hurt performance. But the ViewStub is an invisible and zero-sized view that can be used to lazy loading on demand. Similarly, with reduce memory usage, use ViewStub can also speed up rendering by loading the views only when they are real needed. RxViewStub is s