return value after sending launchminiprogram request

ios/Classes/handler/FluwxLaunchMiniProgramHandler.m

 #import "FluwxLaunchMiniProgramHandler.h"
 #import "WXApiRequestHandler.h"
+#import "FluwxKeys.h"
 
 @implementation FluwxLaunchMiniProgramHandler
 
@@ -25,8 +26,9 @@
         miniProgramType = WXMiniProgramTypePreview;
     }
 
-    [WXApiRequestHandler launchMiniProgramWithUserName:userName
+    BOOL done =  [WXApiRequestHandler launchMiniProgramWithUserName:userName
                                         path:path
                                         type:miniProgramType];
+    result(@{fluwxKeyPlatform: fluwxKeyIOS, fluwxKeyResult: @(done)});
 }
 @end