IOS 5 MB浏览器HUD在加载数据时禁用标签栏按钮.(用户交互启用 = 否)

Question

我在加载数据时使用MBProgressHUD，用户可以在此过程中按另一个选项卡按钮。 MBProgressHUD仅禁用视图内容。我检查了其他帖子，但没有看到任何帮助我禁用选项卡按钮的内容。

我试图将tabbaritem.userInteractionEnabled设置为 NO，但我找不到访问它的方法。我可以在故事板中执行此操作，但无法将其切换回YES.

我的问题是;从我的角度来看控制器有什么方法可以访问tabbarcontroller.tabbaritem.userInteractionEnabled吗？

Answer 1

我使用类别：

UIViewController+MBProgressHUD.h

#import <UIKit/UIKit.h>
@class MBProgressHUD;
@interface UIViewController (MBProgressHUD)
- (MBProgressHUD *)showHUD;
- (MBProgressHUD *)showHUDFromTitle:(NSString *)title;
- (MBProgressHUD *)showHUDFromTitle:(NSString *)title completedImage:(BOOL)completedImage;
- (void)hideHUD;
@end

和UIViewController+MBProgressHUD.m

#import "UIViewController+MBProgressHUD.h"
#import <MBProgressHUD/MBProgressHUD.h>
@implementation UIViewController (MBProgressHUD)
- (MBProgressHUD *)showHUDFromTitle:(NSString *)title {
    UIView *view;
    if (self.tabBarController.view != nil) {
        view = self.tabBarController.view;
    } else if (self.navigationController.view != nil) {
        view = self.navigationController.view;
    } else {
        view = self.view;
    }
    MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:view animated:NO];
    hud.labelText = title;
    return hud;
}
- (MBProgressHUD *)showHUD {
    return [self showHUDFromTitle:NSLocalizedString(@"Loading", @"Loading")];
}
- (MBProgressHUD *)showHUDFromTitle:(NSString *)title completedImage:(BOOL)completedImage {
    MBProgressHUD *hud = [self showHUDFromTitle:title];
    if (completedImage) {
        UIImage *checkmarkImage = [UIImage imageNamed:@"37x-Checkmark"];
        UIImageView *checkmarkImageView = [[UIImageView alloc] initWithImage:checkmarkImage];
        hud.customView = checkmarkImageView;
        hud.mode = MBProgressHUDModeCustomView;
    } else {
        hud.mode = MBProgressHUDModeText;
    }
    return hud;
}
- (void)hideHUD {
    [MBProgressHUD hideAllHUDsForView:self.tabBarController.view animated:NO];
    [MBProgressHUD hideAllHUDsForView:self.navigationController.view animated:NO];
    [MBProgressHUD hideAllHUDsForView:self.view animated:NO];
}

例：

[self showHUD];
[self hideHUD];

Answer 2

这是一种简单的方法

 [[[self tabBarController] tabBar] setUserInteractionEnabled:NO];

如此链接中所述：如何在加载视图时隐藏选项卡栏操作？

与MBProgressHUD配合使用效果很好

Answer 3

更

优雅地显示 UITabBarController 的 HUD ，因为用户交互将完全由MBProgressHUD控制，直到调用hideAnimated:：

// Show HUD from Tab Bar, to disable the tab bar items:
MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.tabBarController.view
                                          animated:YES];
// Do some time-consuming stuff:
...
// Hide HUD and enable tab bar items:
[hud hideAnimated:YES];