iOS模态跳转的页面WebView中加载html调用本机相册会dismiss返回上一个页面解决办法

首先感谢作者，提供了完美的解决办法，讲解的非常的详细。原文地址 

我在这里只是为了帮助大家可以尽快的解决问题，稍微的总结下。

首先在页面中定义一个全局布尔值_flag，然后加入下面的代码，就能解决问题，html调用本地相册不再会调用dismiss返回上个页面。但是你点击返回按钮也失效了

- (UIViewController *)presentingViewController {    if (_flag) {        return nil;    } else {        return [super presentingViewController];    }}- (void)presentViewController:(UIViewController *)viewControllerToPresent animated:(BOOL)flag completion:(void (^)(void))completion {    if ([viewControllerToPresent isKindOfClass:[UIDocumentMenuViewController class]]        ||[viewControllerToPresent isKindOfClass:[UIImagePickerController class]]) {        _flag = YES;    }        [super presentViewController:viewControllerToPresent animated:flag completion:completion];}

解决模态跳转的页面WebView中加载html调用本地相册会dismiss和返回按钮dismiss失效办法（终极方案）

首先分别定义布尔值_flag和dismissBool 

-(void)clickHome//返回按钮的方法{    [self dismissViewControllerAnimated:YES completion:nil];    dismissBool = YES;}-(UIViewController *)presentingViewController {    if (!dismissBool) {        if (_flag) {            return nil;        } else {            return [super presentingViewController];        }    }else{        return [super presentingViewController];    }    }- (void)presentViewController:(UIViewController *)viewControllerToPresent animated:(BOOL)flag completion:(void (^)(void))completion {    if ([viewControllerToPresent isKindOfClass:[UIDocumentMenuViewController class]]        ||[viewControllerToPresent isKindOfClass:[UIImagePickerController class]]) {        _flag = YES;    }        [super presentViewController:viewControllerToPresent animated:flag completion:completion];}