js

_test() {
   
    NativeModules.ToastModule.myFunctionXXXX();
    
  }

Android

 @ReactMethod
    public void myFunctionXXXX() {
        // To Do Something
        // 字符串 params 即为 RN 传入的参数
        Toast.makeText(getReactApplicationContext(), "123", Toast.LENGTH_LONG).show();
    }


    @ReactMethod
    public void myFunctionXXXX(String parmas) {
        // To Do Something
        // 字符串 params 即为 RN 传入的参数
        Toast.makeText(getReactApplicationContext(), "-string-"+parmas, Toast.LENGTH_LONG).show();
    }

    @ReactMethod
    public void myFunctionXXXX(int parmas) {
        // To Do Something
        // 字符串 params 即为 RN 传入的参数
        Toast.makeText(getReactApplicationContext(), "-int-"+parmas, Toast.LENGTH_LONG).show();
    }