应用程序在 iOS 16 上崩溃，但不在 iOS 17 上崩溃。-

问：

我有一个应用程序，可让您使用设备相机拍照 - 拍摄后，它会进入下一个屏幕进行编辑 - 但是，在 iOS 16 设备上，只要我从相机视图中按下“使用照片”按钮，它就会崩溃 - 由于某种原因，它不会发生在 iOS 17 设备上， 它对他们工作正常。 我尝试调试但没有成功。

#define IMAGE_FRAME_SIZE 5
#define FRAME_COLOR_R 1.0
#define FRAME_COLOR_G 1.0
#define FRAME_COLOR_B 1.0
#define FRAME_COLOR_ALPHA 1

//#define VIEW_AREA_WIDTH 320
//#define VIEW_AREA_HEIGHT 368
//#define IMAGEVIEW_MARGIN 20

#define VIEW_AREA_WIDTH         ((UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) ? 768 : 320)
#define VIEW_AREA_HEIGHT        ((UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) ? 800 : 368)
#define IMAGEVIEW_MARGIN        ((UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) ? 40 : 20)
#define SHADOW_WIDTH            ((UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) ? 16 : 8)


@interface PhotoSelectViewController ()

@end

@implementation PhotoSelectViewController

@synthesize popoverController;
@synthesize cameraPicker;
@synthesize backgroundImageView;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}
- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.
      
    if ([UIScreen mainScreen].bounds.size.height == 568)
        self.view.backgroundColor = [UIColor colorWithPatternImage: [UIImage imageNamed: @"[email protected]"]];
    else
        self.view.backgroundColor = [UIColor colorWithPatternImage: [UIImage imageNamed: @"background.png"]];

}

- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}

- (void)viewWillAppear:(BOOL)animated
{
    [[UIApplication sharedApplication] setStatusBarHidden:YES];
    
    [self.view setBounds:self.view.frame];
    
    backgroundImageView.image = [[[GlobalData compressImage:[GlobalData sharedData].backgroundImage withSize:CGSizeMake((VIEW_AREA_WIDTH - IMAGEVIEW_MARGIN * 2), (VIEW_AREA_HEIGHT - IMAGEVIEW_MARGIN * 2))] imageAddFrame:IMAGE_FRAME_SIZE withColor:[UIColor colorWithRed:FRAME_COLOR_R green:FRAME_COLOR_G blue:FRAME_COLOR_B alpha:FRAME_COLOR_ALPHA].CGColor] imageWithShadow:SHADOW_WIDTH];

    [backgroundImageView setFrame:CGRectMake(([UIScreen mainScreen].bounds.size.width - backgroundImageView.image.size.width) / 2, ([UIScreen mainScreen].bounds.size.height - backgroundImageView.image.size.height) / 2, backgroundImageView.image.size.width, backgroundImageView.image.size.height)];
    
}

该部分是崩溃发生的地方，如果我将一些代码移动到，那么应用程序会继续通过照片阶段并继续，但是当您返回再次尝试时，应用程序将崩溃，因此它几乎就像一次性修复，但下次崩溃，但它提供了一些可能出错的想法。viewWillAppearviewdidLoad

我意识到它是硬编码的值，这是一个非常旧的应用程序，我只是想在改进其他部分之前修复错误

- (UIImage*)imageWithShadow:(int)shadowSize {
    CGColorSpaceRef colourSpace = CGColorSpaceCreateDeviceRGB();
    CGContextRef shadowContext = CGBitmapContextCreate(NULL, self.size.width + shadowSize, self.size.height + shadowSize, CGImageGetBitsPerComponent(self.CGImage), 0,
                                                       colourSpace, kCGImageAlphaPremultipliedLast);
    CGColorSpaceRelease(colourSpace);
    
    CGContextSetShadowWithColor(shadowContext, CGSizeMake(shadowSize / 2, -shadowSize / 2), 6, [UIColor blackColor].CGColor);
    CGContextDrawImage(shadowContext, CGRectMake(0, 10, self.size.width, self.size.height), self.CGImage);
    
    CGImageRef shadowedCGImage = CGBitmapContextCreateImage(shadowContext);
    CGContextRelease(shadowContext);
    
    UIImage * shadowedImage = [UIImage imageWithCGImage:shadowedCGImage];
    CGImageRelease(shadowedCGImage);
    
    return shadowedImage;
}

编辑 - 下面的堆栈跟踪

* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x8)
    frame #0: 0x00000001ad11f4dc libobjc.A.dylib`objc_retain_x2 + 8
    frame #1: 0x00000001e2f2088c TelephonyUI`-[UIImage(TelephonyUI) imageWithShadow:] + 40
  * frame #2: 0x0000000104dea7cc Cut me in`-[PhotoSelectViewController viewWillAppear:](self=0x000000010637ed20, _cmd="viewWillAppear:", animated=YES) at PhotoSelectViewController.m:76:33
    frame #3: 0x00000001b5df2880 UIKitCore`-[UIViewController _setViewAppearState:isAnimating:] + 612
    frame #4: 0x00000001b5e8c6a8 UIKitCore`-[UIViewController __viewWillAppear:] + 100
    frame #5: 0x00000001b5df4114 UIKitCore`-[UINavigationController viewWillAppear:] + 280
    frame #6: 0x00000001b5df2880 UIKitCore`-[UIViewController _setViewAppearState:isAnimating:] + 612
    frame #7: 0x00000001b5e8c6a8 UIKitCore`-[UIViewController __viewWillAppear:] + 100
    frame #8: 0x00000001b64e4888 UIKitCore`__56-[UIPresentationController runTransitionForCurrentState]_block_invoke_3 + 740
    frame #9: 0x00000001b5f7391c UIKitCore`-[_UIAfterCACommitBlock run] + 64
    frame #10: 0x00000001b5f73858 UIKitCore`-[_UIAfterCACommitQueue flush] + 184
    frame #11: 0x0000000105c87f08 libdispatch.dylib`_dispatch_call_block_and_release + 24
    frame #12: 0x0000000105c897a0 libdispatch.dylib`_dispatch_client_callout + 16
    frame #13: 0x0000000105c9834c libdispatch.dylib`_dispatch_main_queue_drain + 920
    frame #14: 0x0000000105c97fa4 libdispatch.dylib`_dispatch_main_queue_callback_4CF + 40
    frame #15: 0x00000001b3edd9ac CoreFoundation`__CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
    frame #16: 0x00000001b3ec1648 CoreFoundation`__CFRunLoopRun + 2080
    frame #17: 0x00000001b3ec5d20 CoreFoundation`CFRunLoopRunSpecific + 584
    frame #18: 0x00000001eb23c998 GraphicsServices`GSEventRunModal + 160
    frame #19: 0x00000001b615780c UIKitCore`-[UIApplication _run] + 868
    frame #20: 0x00000001b6157484 UIKitCore`UIApplicationMain + 312
    frame #21: 0x0000000104de4054 Cut me in`main(argc=1, argv=0x000000016b023670) at main.m:16:16
    frame #22: 0x00000001d167c344 dyld`start + 1860