AnnotationDemo

编译期注解使用demo
坑：
1.报错：Annotation processors must be explicitly declared now. The following dependencies on the compile classpath are found to contain annotation processor. Please add them to the annotationProcessor configuration.
- MyAnnotation.jar (project :MyAnnotation)
解决方案：app的defaultConfig{...}增加javaCompileOptions { annotationProcessorOptions { includeCompileClasspath = true } }
2.报错：Failed to find byte code for javax/annotation/processing/AbstractProcessor
解决方案：File -> Settings -> Instant Run -> 取消勾选Enable instant...