Mobile Platform as a Service:Flutter project access guide

For more information about how to configure and initialize an mPaaS environment for a Flutter project, see Access a Flutter project.

Use mini program

1. Register the mini program in the configureFlutterEngine of FlutterActivity.

   val messenger = flutterEngine.dartExecutor.binaryMessenger
   // Create a Channel object
   val channel = MethodChannel(messenger, "mpaas_mini_app")
   
   // Set a callback for the channel
   channel.setMethodCallHandler { call, res ->
       // Distribute different processing based on the method name
       when(call.method) {
   
           "mpaas_mini_app" -> {
               // Obtain the passed parameters
               val msg = call.argument<String>("msg")
               MPNebula.startApp(msg)
               // Notify that the execution is successful
               res.success("This is the result of the execution.")
           }
   
           else -> {
               // If an unrecognized method name is found, the execution fails.
               res.error("error_code", "error_message", null)
           }
       }
   }  

2. Use mini program in Flutter.

   // Create a channel.
   const channel = const MethodChannel("mpaas_mini_app");
   
   
   Widget buttonView() {
     return  TextButton(
       child: Text("Open the mini program"),
       onPressed: () {
         callNativeMethod("2023072011111112");
       },
     );
   }
   
   void callNativeMethod(String msg) {
     try {
       // Call the native code method through the channel.
       Future future = channel.invokeMethod("mpaas_mini_app", {"msg": msg} );
       // Print the execution result.
       print(future.toString());
     } on PlatformException catch(e) {
       print(e.toString());
     }
   }