不推荐使用 XCodeGLKit 的警告考虑迁移到 Metal 而不是 Apple email 不推荐使用 API 使用，使用 WKWebView 而不是 UIWebView

Question

我已经使用 Buildbox 2.3.3 完成了我的游戏，并尽可能多地清理了 Xcode 上的警告。 但是，我已经在这几个星期了，因为我从 OpenGL 迁移到 Metal，我认为这是我在 Xcode 中出现错误说 GLKit 已弃用的原因，请考虑迁移到金属。

我试图在没有解决此错误的情况下将游戏上传到 App Store 连接，但随后我立即收到一条 email 说

ITMS-90809：已弃用 API 用法，新应用不再使用 UIWebView，改用 WKWebView。

我不知道如何 go 关于转换我的代码以满足这一点我真的很感激一些指导，或者如果有人可以为我重写我的代码，将 OpenGL 转换为金属。

我将在下面附上我正在使用的代码，如果有人可以帮助我，我将不胜感激。 我已经被困在这个最后阶段好几个星期了，这非常令人沮丧。

AppDelegate.h

#import <UIKit/UIKit.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate>{
}

@property (strong, nonatomic) UIWindow *window;


@end

AppDelegate.mm

#import "AppDelegate.h"
#import <GLKit/GLKit.h>
#include "PTPSettingsController.h"
#include "libs/cocos2dx/include/audio/include/SimpleAudioEngine.h"

@interface AppDelegate ()

@end

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    return YES;
}


- (void)applicationWillResignActive:(UIApplication *)application {
    cocos2d::CCDirector::sharedDirector()->pause();
}

- (void)applicationDidEnterBackground:(UIApplication *)application {
    cocos2d::CCApplication::sharedApplication()->applicationDidEnterBackground();
}

- (void)applicationWillEnterForeground:(UIApplication *)application {
    cocos2d::CCApplication::sharedApplication()->applicationWillEnterForeground();
}

- (void)applicationDidBecomeActive:(UIApplication *)application {
    cocos2d::CCDirector::sharedDirector()->resume();
}

- (void)applicationWillTerminate:(UIApplication *)application {
}

- (void)loadingDidComplete{
}

-(void)showCustomFullscreenAd{
}

- (void)screenOnEnter:(const char*) name{
}

- (void)screenOnExit:(const char*) name{
}

@end

游戏视图控制器.h

#import <UIKit/UIKit.h>
#import <GLKit/GLKit.h>

@interface GameViewController : GLKViewController

@end

游戏视图控制器.mm

#import "GameViewController.h"
#import <OpenGLES/ES2/glext.h>
#import "PTModelController.h"
#import "PTModelGeneralSettings.h"
#import "PTPAppDelegate.h"
#import "cocos2d.h"
#import "PTPConfig.h"
#include "PTPSettingsController.h"


#define IOS_MAX_TOUCHES_COUNT     10

static PTPAppDelegate s_sharedApplication;

@interface GameViewController () {
    NSString* shareMessage;
    bool sheduledForShareWidget;
}
@property (strong, nonatomic) EAGLContext *context;

@end

@implementation GameViewController

- (void)viewDidLoad{
    [super viewDidLoad];

    sheduledForShareWidget = false;
    self.context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];

    if (!self.context) {
        NSLog(@"Failed to create ES context");
    }

    GLKView *view = (GLKView *)self.view;
    view.context = self.context;
    view.drawableDepthFormat = GLKViewDrawableDepthFormat24;
    [view setMultipleTouchEnabled: YES];

    [self setPreferredFramesPerSecond:60];
    [EAGLContext setCurrentContext:self.context];

    PTModelController *mc = PTModelController::shared();
    mc->clean();

    unsigned long size = 0;
    char* pBuffer = (char*)CCFileUtils::sharedFileUtils()->getFileData("data/data.pkg", "rb", &size);
    if (pBuffer != NULL && size > 0){
        mc->setUsingDataEncryption( true );
    }

    mc->loadDataForSplashScreen("data/data.pkg", processor().c_str());

    s_sharedApplication.setDataArchiveProcessor(processor());


    cocos2d::CCApplication::sharedApplication()->run();
}

- (void)dealloc{
    if ([EAGLContext currentContext] == self.context) {
        [EAGLContext setCurrentContext:nil];
    }
}

- (void)didReceiveMemoryWarning{
    [super didReceiveMemoryWarning];

    if ([self isViewLoaded] && ([[self view] window] == nil)) {
        self.view = nil;

        if ([EAGLContext currentContext] == self.context) {
            [EAGLContext setCurrentContext:nil];
        }
        self.context = nil;
    }

    // Dispose of any resources that can be recreated.
}

- (BOOL)prefersStatusBarHidden {
    return YES;
}

- (void)glkView:(GLKView *)view drawInRect:(CGRect)rect{
    glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    cocos2d::CCDirector::sharedDirector()->setViewport();
    cocos2d::CCDirector::sharedDirector()->mainLoop();
}


- (void)update{
    if(sheduledForShareWidget == true){
        sheduledForShareWidget = false;

        GLKView *view  = (GLKView *)self.view;
        UIImage* screenshot = view.snapshot;

        PTLog("Opens Share Widget: screenshot was taken");

        UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:@[shareMessage, screenshot] applicationActivities:nil];

        NSArray *excludeActivities = @[UIActivityTypeSaveToCameraRoll,
                                       UIActivityTypeAssignToContact];
        activityVC.excludedActivityTypes = excludeActivities;


        float iOSVersion = [[UIDevice currentDevice].systemVersion floatValue];
        if(iOSVersion > 8.0){
            activityVC.popoverPresentationController.sourceView = self.view;
        }

        [self presentViewController:activityVC animated:YES completion:nil];
        PTLog("opens Share Widget: view controller presented");
    }
}

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event{
    int ids[IOS_MAX_TOUCHES_COUNT] = {0};
    float xs[IOS_MAX_TOUCHES_COUNT] = {0.0f};
    float ys[IOS_MAX_TOUCHES_COUNT] = {0.0f};

    int i = 0;
    for (UITouch *touch in touches) {
        ids[i] = (intptr_t)touch;
        xs[i] = [touch locationInView: [touch view]].x * self.view.contentScaleFactor;
        ys[i] = [touch locationInView: [touch view]].y * self.view.contentScaleFactor;
        ++i;
    }
    cocos2d::CCEGLView::sharedOpenGLView()->handleTouchesBegin(i, ids, xs, ys);
}

- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event{
    int ids[IOS_MAX_TOUCHES_COUNT] = {0};
    float xs[IOS_MAX_TOUCHES_COUNT] = {0.0f};
    float ys[IOS_MAX_TOUCHES_COUNT] = {0.0f};

    int i = 0;
    for (UITouch *touch in touches) {
        ids[i] = (intptr_t)touch;
        xs[i] = [touch locationInView: [touch view]].x * self.view.contentScaleFactor;;
        ys[i] = [touch locationInView: [touch view]].y * self.view.contentScaleFactor;;
        ++i;
    }
    cocos2d::CCEGLView::sharedOpenGLView()->handleTouchesMove(i, ids, xs, ys);
}

- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event{
    int ids[IOS_MAX_TOUCHES_COUNT] = {0};
    float xs[IOS_MAX_TOUCHES_COUNT] = {0.0f};
    float ys[IOS_MAX_TOUCHES_COUNT] = {0.0f};

    int i = 0;
    for (UITouch *touch in touches) {
        ids[i] = (intptr_t)touch;
        xs[i] = [touch locationInView: [touch view]].x * self.view.contentScaleFactor;;
        ys[i] = [touch locationInView: [touch view]].y * self.view.contentScaleFactor;;
        ++i;
    }
    cocos2d::CCEGLView::sharedOpenGLView()->handleTouchesEnd(i, ids, xs, ys);
}

- (void)touchesCancelled:(NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event{
    int ids[IOS_MAX_TOUCHES_COUNT] = {0};
    float xs[IOS_MAX_TOUCHES_COUNT] = {0.0f};
    float ys[IOS_MAX_TOUCHES_COUNT] = {0.0f};

    int i = 0;
    for (UITouch *touch in touches) {
        ids[i] = (intptr_t)touch;
        xs[i] = [touch locationInView: [touch view]].x * self.view.contentScaleFactor;;
        ys[i] = [touch locationInView: [touch view]].y * self.view.contentScaleFactor;;
        ++i;
    }
    cocos2d::CCEGLView::sharedOpenGLView()->handleTouchesCancel(i, ids, xs, ys);
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    PTModelGeneralSettingsPtr generalSettings = PTModelGeneralSettings::shared();
    if(generalSettings->orientation() == PTModelGeneralSettings::LandscapeOrientation){
        return UIInterfaceOrientationIsLandscape( interfaceOrientation );
    }
    else if(generalSettings->orientation() == PTModelGeneralSettings::PortraitOrientation){
        return UIInterfaceOrientationIsPortrait( interfaceOrientation );
    }

    return NO;
}

- (NSUInteger) supportedInterfaceOrientations{
    PTModelGeneralSettingsPtr generalSettings = PTModelGeneralSettings::shared();
    if(generalSettings->orientation() == PTModelGeneralSettings::LandscapeOrientation){
        return UIInterfaceOrientationMaskLandscape;

    }
    else if(generalSettings->orientation() == PTModelGeneralSettings::PortraitOrientation){
        return UIInterfaceOrientationMaskPortrait;
    }

    return NO;
}

- (BOOL) shouldAutorotate {
    return NO;
}

-(void) scheduleOpenShareWidget:(const char*) message{
    shareMessage = [NSString stringWithUTF8String:message];
    sheduledForShareWidget = true;
}

@end

Answer 1

正如您已经被告知的那样，您的问题有点不适合 Stack Overflow。 您可以开始将您的项目从OpenGL重写为Metal ，并在出现任何问题时提出问题。

Apple 文档是一个很好的起点：

• 将 OpenGL 代码迁移到金属

• 在视图中混合金属和 OpenGL 渲染

您还可以观看WWDC 2019 视频并了解将基于 OpenGL 的应用程序转换为 Metal API 的分步方法。

Answer 2

OpenGL 便携，支持广泛，所以不能用很可惜。 幸运的是， MetalANGLE框架几乎是 GLKit 的完美替代品。 我已经开始在我的 map 渲染库CartoType的开发分支中使用它，并且它工作正常：与 GLKit 相比，我看不到图形有任何区别，我只需要对我的代码做一点小改动就可以得到它起作用了——这种变化可能是由于对 GLKit 的不正确使用造成的。

所以我的建议是：继续使用 OpenGL 并使用 MetalANGLE。