8-7 Flutter通信机制&Dart端讲解 
8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 BasicMessageChannel
8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 都需要先到导入services.dart这个包
8-7 Flutter通信机制&Dart端讲解 MethodChannel
比如dart调用native的相册，相机拍照。就可以通过MethodChannel来完成。
8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 codec是消息的编解码器。
8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 EventChannel
8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 8-7 Flutter通信机制&Dart端讲解 消息通信的机制，消息通信的三种方式。以及三个channel的不同实现。
每个channel都有自己的特点。
8-7 Flutter通信机制&Dart端讲解 结束
