iOS13系统UITabBar

Question

如何删除标签顶部的黑线，

[self.tabBar setShadowImage:[UIImage new]];
self.tabBar.backgroundImage = [UIImage new];

iOS13无效

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Answer 1

您需要使用iOS 13的新UITabBarAppareance

if #available(iOS 13.0, *) {
    let appareance = UITabBarAppearance(barAppearance: tabBarController.tabBar.standardAppearance)
    appareance.shadowImage = nil
    appareance.shadowColor = nil
    tabBarController.tabBar.standardAppearance = appareance
} else {
    // Fallback on earlier versions.
    tabBarController.tabBar.shadowImage = UIImage()
}