Flutter 与 原生交互（Android），含 BATJM 大厂
public void reply(Object o) {
Log.d(TAG, "reply: "+0);
}
});
}
/**
Flutter 发起的通信
@param o
@param reply
*/
@Override
public void onMessage(Object o, BasicMessageChannel.Reply reply) {
Log.d(TAG, "onMessage: "+o);
reply.reply("ok");
}
}
2.注册
3.dart 调用
/**
发送
*/
Future<String> sendMessage() async{
String reply = await messageChannel.send("Flutter send");
print(reply);
return reply;
}
/**
接收
*/
void receiveMessage(){
messageChannel.setMessageHandler((message) async{
print(message);
return "is ok";
});
}
MethodChannel
=============
flutter 调用 原生
1.实现插件
public class FlutterPluginTest implements MethodChannel.MethodCallHandler {
private static final String TAG = "FlutterPluginTest";
/**
插件标识
*/
public static String CHANNEL = "com.mmd.flutterapp/plugin";
private static String ACTION_LOG = "log";
private static String LOG_ARGUMENT = "data";
static MethodChannel channel;
public static void registerWith(PluginRegistry.Registrar registrar) {
channel = new MethodChannel(registrar.messenger(), CHANNEL);
FlutterPluginTest instance = new FlutterPluginTest();
channel.setMethodCallHandler(instance);
}
@Override
public void onMethodCall(MethodCall methodCall, MethodChannel.Result result) {
/**
通过 method 判断调用方法
*/
if (methodCall.method.equals(ACTION_LOG)) {
/**
解析参数
*/
String text = methodCall.argument(LOG_ARGUMENT);
if (TextUtils.isEmpty(text)) {
/**
错误返回
*/
result.error("Data is Null",null,null);
}else {
Log.d(TAG, "onMethodCall: "+text);
/**
成功返回
*/
result.success("is ok");
}
}else {
result.notImplemented();
}
}
}
2.注册插件
public class MainActivity extends FlutterActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
/**
注册插件
*/
FlutterPluginTest.registerWith(this.registrarFor(FlutterPluginTest.CHANNEL));
}
}
3.Flutter 端调用
import 'package:flutter/services.dart';
/**
名称要和 Java 端一致
*/
const channelName = "com.mmd.flutterapp/plugin";
const methodName = "log";
const MethodChannel channel = MethodChannel(channelName);
Future<String> _testLog() async{
Map<String,String> map = {"data":"Flutter Hello !"};
String result = await channel.invokeMethod(methodName,map);
print(result);
}
EventChannel
============
原生发送数据到 Flutter
**1.
实现插件**
public class FlutterPluginEventTest implements EventChannel.StreamHandler {
private static final String TAG = "FlutterPluginEventTest";
public static String CHANNEL = "com.mmd.flutterapp/plugin";
还未添加个人签名 2021.10.31 加入
还未添加个人简介
评论