Created
May 21, 2024 11:13
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#import <UIKit/UIKit.h> | |
#import <objc/message.h> | |
#import <objc/runtime.h> | |
#import <MultipeerConnectivity/MultipeerConnectivity.h> | |
namespace _MCAlertController { | |
namespace show { | |
void (*original)(id, SEL); | |
void custom(__kindof UIViewController *self, SEL _cmd) { | |
UIWindowScene *activeWindowScene = nil; | |
for (UIScene *scene in UIApplication.sharedApplication.connectedScenes) { | |
if ([scene isKindOfClass:UIWindowScene.class]) { | |
UIWindowScene *windowScene = (UIWindowScene *)scene; | |
if (windowScene.activationState == UISceneActivationStateForegroundActive) { | |
activeWindowScene = windowScene; | |
break; | |
} | |
} | |
} | |
UIWindow *window = [[UIWindow alloc] initWithWindowScene:activeWindowScene]; | |
((void (*)(id, SEL, id))objc_msgSend)(self, sel_registerName("setAlertWindow:"), window); | |
UIViewController *rootViewController = [UIViewController new]; | |
window.rootViewController = rootViewController; | |
window.windowLevel = UIWindowLevelAlert; | |
[window makeKeyAndVisible]; | |
[rootViewController presentViewController:self animated:YES completion:nil]; | |
} | |
} | |
} | |
@interface MyObject : NSObject | |
@end | |
@implementation MyObject | |
+ (void)load { | |
using namespace _MCAlertController::show; | |
Method method = class_getInstanceMethod(objc_lookUpClass("MCAlertController"), sel_registerName("show")); | |
original = (decltype(original))method_getImplementation(method); | |
method_setImplementation(method, (IMP)custom); | |
} | |
@end |
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