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得到当前活动的controller

2024-07-15 16:02:08   214人阅读

UIWindow+PazLabs.h (header file)

#import <UIKit/UIKit.h>@interface UIWindow (PazLabs)- (UIViewController *) visibleViewController;@end

　　

UIWindow+PazLabs.m (implementation file)

#import "UIWindow+PazLabs.h"@implementation UIWindow (PazLabs)- (UIViewController *)visibleViewController {    UIViewController *rootViewController = self.rootViewController;    return [UIWindow getVisibleViewControllerFrom:rootViewController];}+ (UIViewController *) getVisibleViewControllerFrom:(UIViewController *) vc {    if ([vc isKindOfClass:[UINavigationController class]]) {        return [UIWindow getVisibleViewControllerFrom:[((UINavigationController *) vc) visibleViewController]];    } else if ([vc isKindOfClass:[UITabBarController class]]) {        return [UIWindow getVisibleViewControllerFrom:[((UITabBarController *) vc) selectedViewController]];    } else {        if (vc.presentedViewController) {            return [UIWindow getVisibleViewControllerFrom:vc.presentedViewController];        } else {            return vc;        }    }}@end

　　


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