导航在iOS 8上没有响应iPad

Question

想法非常简单。我在带有自定义控件的通用故事板中有导航栏。

UIButton *menu = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 35, 35)];
        [menu setImage:[UIImage imageNamed:@"menu"] forState:UIControlStateNormal];
        [menu addTarget:self.viewDeckController action:@selector(toggleLeftView) forControlEvents:UIControlEventTouchUpInside];

        UIButton *refresh = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 25, 25)];
        [refresh setImage:[UIImage imageNamed:@"refresh"] forState:UIControlStateNormal];
        [refresh addTarget:self action:@selector(reloadPosts) forControlEvents:UIControlEventTouchUpInside];

        UIButton *share = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 25, 25)];
        [share setImage:[UIImage imageNamed:@"share"] forState:UIControlStateNormal];
        [share addTarget:self action:@selector(showActionView) forControlEvents:UIControlEventTouchUpInside];

        UIBarButtonItem *menuBtn = [[UIBarButtonItem alloc] initWithCustomView:menu];
        UIBarButtonItem *refreshBtn = [[UIBarButtonItem alloc] initWithCustomView:refresh];
        UIBarButtonItem *shareBtn = [[UIBarButtonItem alloc] initWithCustomView:share];

        UIBarButtonItem *negativeSpacerLeft = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
        [negativeSpacerLeft setWidth:-10];

        UIBarButtonItem *negativeSpacerRight = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
        [negativeSpacerRight setWidth:-10];

        self.navigationItem.leftBarButtonItems = [NSArray arrayWithObjects:negativeSpacerLeft, menuBtn, nil];
        self.navigationItem.rightBarButtonItems = [NSArray arrayWithObjects:negativeSpacerRight, shareBtn, refreshBtn, nil];

一切正常 - 导航栏已实现样式和按钮/图标。但iPad和iOS 8存在问题（适用于iOS7）。当我点击任何按钮时，它没有响应。我做错了什么？它适用于iOS 7/8的iPhone。