Toast # Snackbar # Dialog
catch ex when dismiss Virtual Toast Dialog.
fix bug : view null when process in SafeHandler
solve problem : toast cannot show in some cases when page transition
fix bug : set bg
fix bugs on device 7.x
fix memory leaks
优化gradle文件
SmartToast模块所有png图片替换为svg图片，缩减库体积
重构smart-toast 适配android11 引入注解模块
修复android11 toast崩溃