Created
April 28, 2015 23:13
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A potential fix to a new crash in iOS 8.3 where UIAlertViews will crash because they expect a different auto rotation behavior than what they are getting.
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// | |
// UIAlertViewCrashFix.h | |
// | |
// Created by Josh Hudnall on 4/28/15. | |
// | |
// | |
#import <Foundation/Foundation.h> | |
@interface UIAlertController (CrashFix) | |
@end | |
@interface UIViewController (CrashFix) | |
@end |
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// | |
// UIAlertViewCrashFix.m | |
// | |
// Created by Josh Hudnall on 4/28/15. | |
// | |
// | |
#import <objc/runtime.h> | |
#import "UIAlertView+CrashFix.h" | |
@implementation UIAlertController (CrashFix) | |
+ (void)load { | |
static dispatch_once_t onceToken; | |
dispatch_once(&onceToken, ^{ | |
Class class = [self class]; | |
Method original, swizzle; | |
// Swizzle | |
original = class_getInstanceMethod(class, @selector(shouldAutorotate)); | |
swizzle = class_getInstanceMethod(class, @selector(jh_shouldAutorotate)); | |
method_exchangeImplementations(original, swizzle); | |
// Swizzle | |
original = class_getInstanceMethod(class, @selector(supportedInterfaceOrientations)); | |
swizzle = class_getInstanceMethod(class, @selector(jh_supportedInterfaceOrientations)); | |
method_exchangeImplementations(original, swizzle); | |
// Swizzle | |
original = class_getInstanceMethod(class, @selector(preferredInterfaceOrientationForPresentation)); | |
swizzle = class_getInstanceMethod(class, @selector(jh_preferredInterfaceOrientationForPresentation)); | |
method_exchangeImplementations(original, swizzle); | |
}); | |
} | |
- (BOOL)jh_shouldAutorotate { | |
return IS_IPAD; | |
} | |
- (NSUInteger)jh_supportedInterfaceOrientations { | |
return (IS_IPAD) ? UIInterfaceOrientationMaskAll : UIInterfaceOrientationPortrait; | |
} | |
- (UIInterfaceOrientation)jh_preferredInterfaceOrientationForPresentation { | |
UIDevice* device = [UIDevice currentDevice]; | |
if (device.orientation == UIInterfaceOrientationPortraitUpsideDown) { | |
return UIInterfaceOrientationPortraitUpsideDown; | |
} | |
return UIInterfaceOrientationPortrait; | |
} | |
@end | |
@implementation UIViewController (CrashFix) | |
+ (void)load { | |
static dispatch_once_t onceToken; | |
dispatch_once(&onceToken, ^{ | |
Class class = [self class]; | |
Method original, swizzle; | |
// Swizzle | |
original = class_getInstanceMethod(class, @selector(shouldAutorotate)); | |
swizzle = class_getInstanceMethod(class, @selector(jh_shouldAutorotate)); | |
method_exchangeImplementations(original, swizzle); | |
// Swizzle | |
original = class_getInstanceMethod(class, @selector(supportedInterfaceOrientations)); | |
swizzle = class_getInstanceMethod(class, @selector(jh_supportedInterfaceOrientations)); | |
method_exchangeImplementations(original, swizzle); | |
// Swizzle | |
original = class_getInstanceMethod(class, @selector(preferredInterfaceOrientationForPresentation)); | |
swizzle = class_getInstanceMethod(class, @selector(jh_preferredInterfaceOrientationForPresentation)); | |
method_exchangeImplementations(original, swizzle); | |
}); | |
} | |
- (BOOL)jh_shouldAutorotate { | |
return IS_IPAD; | |
} | |
- (NSUInteger)jh_supportedInterfaceOrientations { | |
return (IS_IPAD) ? UIInterfaceOrientationMaskAll : UIInterfaceOrientationPortrait; | |
} | |
- (UIInterfaceOrientation)jh_preferredInterfaceOrientationForPresentation { | |
UIDevice* device = [UIDevice currentDevice]; | |
if (device.orientation == UIInterfaceOrientationPortraitUpsideDown) { | |
return UIInterfaceOrientationPortraitUpsideDown; | |
} | |
return UIInterfaceOrientationPortrait; | |
} | |
@end |
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Naturally, you will need to update the supported interface orientation masks as is appropriate to your app.