Question

我正在Unity 2018.1中使用Vuforia插件，并且对UnityAppController有自己的替代项。当我这样做时，Vuforia会消灭我的，所以它永远不会被召唤。

我发现了许多可能的解决方案，但我设法解决的唯一方法是用也能调用我自己的代码的Vuforia手动替换。这是一个完全的hack，而不是一个好的方法。我找到了可能的解决方案/// Can you have more than one subclass of UnityAppController?

但是我不明白。

#import "UnityAppController.h"

namespace {

typedef BOOL (*ApplicationDidFinishLaunchingWithOptionsImp)(UnityAppController *appController,
                                                            SEL selector,
                                                            UIApplication *application,
                                                            NSDictionary *launchOptions);

ApplicationDidFinishLaunchingWithOptionsImp OriginalApplicationDidFinishLaunchingWithOptions;

BOOL ApplicationDidFinishLaunchingWithOptions(UnityAppController *appController,
                          SEL selector,
                          UIApplication *application,
                          NSDictionary *launchOptions) {
    // Initialize Google Play Games, etc
    return OriginalApplicationDidFinishLaunchingWithOptions(appController, selector, application, launchOptions);
}

IMP SwizzleMethod(SEL selector, Class klass, IMP newImp) {
    Method method = class_getInstanceMethod(klass, selector);
    if (method != nil) {
        return class_replaceMethod(klass, selector, newImp, method_getTypeEncoding(method));
    }
    return nil;
}

} // anonymous namespace

@interface AppController : UnityAppController

@end

@implementation AppController

+ (void)load {
    OriginalApplicationDidFinishLaunchingWithOptions = (ApplicationDidFinishLaunchingWithOptionsImp)
        SwizzleMethod(@selector(application:didFinishLaunchingWithOptions:),
                      [UnityAppController class],
                      (IMP)&ApplicationDidFinishLaunchingWithOptions);
}


@end

一旦将原始代码淹没，您将在哪里添加自己的代码？

这是我用来替换Vuforia版本的代码：

 @implementation VuforiaNativeRendererController

 - (BOOL)application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions
 {
     //printf_console("Did Finish Launching with options\n");
     NSURL *URL = [launchOptions valueForKey:UIApplicationLaunchOptionsURLKey];
     if (URL)
     {
         const char *URLString = [URL.absoluteString UTF8String];
         //printf_console("Application started with URL:\n");
         //printf_console("%s\n", URLString);
         UnitySendMessage("Scripts", "openURLComplete", URLString);
     }
     BOOL ret = [super application:application didFinishLaunchingWithOptions:launchOptions];
     if (ret)
     {
         _unityView.backgroundColor = UIColor.clearColor;
     }
     return ret;
 }

但是我将如何使用上面的“转换”方法来引入它呢？

您如何有多个UnityAppController覆盖？

0 个答案: