为啥 MPMoviePlayerController 全屏按钮图标在 iOS 10 中更改为标题图标？

Posted 2023-03-08

【中文标题】为啥 MPMoviePlayerController 全屏按钮图标在 iOS 10 中更改为标题图标？

【英文标题】：Why MPMoviePlayerController fullscreen button icon change to caption icon in iOS 10?为什么 MPMoviePlayerController 全屏按钮图标在 iOS 10 中更改为标题图标？

【发布时间】：2016-10-13 04:10:10

【问题描述】：

我尝试将 MPMoviePlayerController 用作嵌入式视频播放器，但我发现在 ios 10 中更改了全屏图标的问题？

有没有办法把它改回原来的全屏按钮？

谢谢，

这就是它在 iOS 8 和 iOS 9 中的样子：

这就是它在 iOS 10 中的样子：

【问题讨论】：

你找到解决这个问题的办法了吗？

不，我最终将目标更新到 ios 9 并改用 AVPlayer。

【参考方案1】：

这里有一些解决 iOS 10 错误的代码，您可以在 WorkaroundInlinePlayerFullScreenButtonBug.m 文件中编写：

@import MediaPlayer;
@import ObjectiveC;

static void (*configureAuxiliaryButtonsIMP)(id, SEL, BOOL);

static void ConfigureAuxiliaryButtons(id self, SEL _cmd, BOOL flag)

    configureAuxiliaryButtonsIMP(self, _cmd, flag);
    @try
    
        id delegate = [self delegate]; // Either nil or MPInlineVideoController (responds to `isFullscreen`) or MPInlineVideoFullscreenViewController (does not respond to `isFullscreen`)
        BOOL isFullscreen = [delegate respondsToSelector:@selector(isFullscreen)] ? [delegate isFullscreen] : YES;
        NSString *imageName = [@[ @"Video", @"Player", @"_", isFullscreen ? @"Exit" : @"Enter", @"Fullscreen" ] componentsJoinedByString:@""];
        SEL imageNamedForControlState = NSSelectorFromString([@[ @"_", @"image", @"Named", @":", @"for", @"Control", @"State", @":" ] componentsJoinedByString:@""]);
        UIImage *normalImage = ((UIImage *(*)(id, SEL, NSString *, UIControlState))objc_msgSend)(self, imageNamedForControlState, imageName, UIControlStateNormal);
        UIImage *highlightedImage = ((UIImage *(*)(id, SEL, NSString *, UIControlState))objc_msgSend)(self, imageNamedForControlState, imageName, UIControlStateHighlighted);
        UIButton *fullscreenButton = [self valueForKey:[@[ @"fullscreen", @"Button" ] componentsJoinedByString:@""]];
        [fullscreenButton setImage:normalImage forState:UIControlStateNormal];
        [fullscreenButton setImage:highlightedImage forState:UIControlStateHighlighted];
    
    @catch (NSException *exception)
    
        NSLog(@"Failed to workaround inline player fullscreen button bug: %@", exception);
    


void WorkaroundInlinePlayerFullScreenButtonBug(void)

    if (![NSProcessInfo.processInfo isOperatingSystemAtLeastVersion:(NSOperatingSystemVersion)10, 0, 0])
        return;

    Class MPVideoPlaybackOverlayView = NSClassFromString([@[ @"M", @"P", @"Video", @"Playback", @"Overlay", @"View" ] componentsJoinedByString:@""]);
    SEL configureAuxiliaryButtonsSEL = NSSelectorFromString([@[ @"_", @"configure", @"Auxiliary", @"Buttons", @":" ] componentsJoinedByString:@""]);
    NSMethodSignature *methodSignature = [MPVideoPlaybackOverlayView instanceMethodSignatureForSelector:configureAuxiliaryButtonsSEL];
    if (methodSignature.numberOfArguments != 3)
    
        NSLog(@"Failed to workaround inline player fullscreen button bug (method not found)");
        return;
    

    const char *returnType = methodSignature.methodReturnType;
    const char *argType = [methodSignature getArgumentTypeAtIndex:2];
    if (strcmp(returnType, @encode(void)) != 0 || strcmp(argType, @encode(BOOL)) != 0)
    
        NSLog(@"Failed to workaround inline player fullscreen button bug (type mismatch)");
        return;
    

    Method configureAuxiliaryButtons = class_getInstanceMethod(MPVideoPlaybackOverlayView, configureAuxiliaryButtonsSEL);
    configureAuxiliaryButtonsIMP = (__typeof__(configureAuxiliaryButtonsIMP))method_getImplementation(configureAuxiliaryButtons);
    method_setImplementation(configureAuxiliaryButtons, (IMP)ConfigureAuxiliaryButtons);

然后更新您的main.m 文件以在运行UIApplicationMain 函数之前调用WorkaroundInlinePlayerFullScreenButtonBug 函数：

#import "AppDelegate.h"

extern void WorkaroundInlinePlayerFullScreenButtonBug(void);

int main(int argc, char *argv[])

    @autoreleasepool
    
        WorkaroundInlinePlayerFullScreenButtonBug();
        return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
    

【讨论】：

你能告诉我如何在没有 main.m 文件的 Swift 项目中实现这个解决方案吗？我的图标也有同样的问题，而你的问题是我找到的唯一解决方案。

Apple 是否会通过此更改批准我的应用程序？