demo_0519_eventchannel 1.0.0+1

A new Flutter project.

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demo_0519_eventchannel

A new Flutter project.

Getting Started

This project is a starting point for a Flutter application.

A few resources to get you started if this is your first Flutter project:

• Lab: Write your first Flutter app
• Cookbook: Useful Flutter samples

For help getting started with Flutter, view our online documentation, which offers tutorials, samples, guidance on mobile development, and a full API reference.

EventChannel

native 调 flutter

swift实现

1. 初始化FlutterViewController，FlutterEventChannel
2. 实现FlutterStreamHandler子类，实现onListen()，onCancel()方法
3. 调用eventChannel.setStreamHandler(XX)，XX是第2步创建的子类

Dart代码

1. 唤醒监听nativeMessageListener()，放在initState()里面，类似于一种声明
2. 定义监听处理nativeMessageListener()方法，里面调用eventChannel.receiveBroadcastStream().listen(evnet)，根据调过来的event（一般是字典，分别以方法名，参数等作为key）做相应处理。

没有flutter 调 native