設定tabBarAppearance使得UITabBarItem不尊重`imageInsets`-有解無憂

當我設定 UITabBar 的外觀時，它使它成為 UITabBarItemimageInsets并且titlePositionAdjustment在 iOS 15 上不再受尊重。洗掉該[UITabBar appearance].standardAppearance = tabBarAppearance;行使其成為影像和標簽陣容，但無法設定背景顏色。有沒有人遇到過這樣的事情并解決了它？

代碼：

UITabBarAppearance *tabBarAppearance = [[UITabBarAppearance alloc] init];
[tabBarAppearance configureWithOpaqueBackground];
[UITabBar appearance].standardAppearance = tabBarAppearance;
[UITabBar appearance].scrollEdgeAppearance = tabBarAppearance;

static let tabBarImageInsets: UIEdgeInsets = UIEdgeInsets(top: 4.0, left: 0, bottom: -4.0, right: 0)
static let titlePositionAdjustmentValue: UIOffset = UIOffset(horizontal: 0.0, vertical: -8.0)
tabBarItem.imageInsets = tabBarImageInsets
tabBarItem.titlePositionAdjustment = titlePositionAdjustmentValue

圖片：

帶有外觀和未對齊標簽的標簽欄

沒有外觀的標簽欄，標簽和影像正確對齊，沒有背景

uj5u.com熱心網友回復：

我在實際閱讀 Apple 檔案后解決了這個問題：

if (@available(iOS 15.0, *)) {
        UINavigationBarAppearance *navBarAppearance = [[UINavigationBarAppearance alloc] init];
        [navBarAppearance configureWithOpaqueBackground];
        [UINavigationBar appearance].standardAppearance = navBarAppearance;
        [UINavigationBar appearance].compactAppearance = navBarAppearance;
        [UINavigationBar appearance].scrollEdgeAppearance = navBarAppearance;

        UITabBarAppearance *tabBarAppearance = [[UITabBarAppearance alloc] init];
        [tabBarAppearance configureWithOpaqueBackground];
        [UITabBar appearance].standardAppearance = tabBarAppearance;
        [UITabBar appearance].scrollEdgeAppearance = tabBarAppearance;

        UITabBarItemAppearance *tabBarItemAppearance = [[UITabBarItemAppearance alloc] init];

        tabBarItemAppearance.normal.titleTextAttributes = [[RRUIDesignToken.font nav] makeTextAttributes];
        if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) {
            tabBarItemAppearance.normal.titlePositionAdjustment = UIOffsetMake(0.0, -[RRUIDesignToken.size paddingXsmall]);
        } else {
            tabBarItemAppearance.normal.titlePositionAdjustment = UIOffsetMake(0.0, -[RRUIDesignToken.size paddingXxsmall]);
        }

        tabBarAppearance.stackedLayoutAppearance = tabBarItemAppearance;
        tabBarAppearance.compactInlineLayoutAppearance = tabBarItemAppearance;
        tabBarAppearance.inlineLayoutAppearance = tabBarItemAppearance;
    }

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標籤：ios 迅速目标-c 尤塔巴

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