[英]Can't set tab bar shadow image in iOS 13
在 iOS13 之前,我使用下面的代碼來移除標簽欄上邊框:
UITabBar.appearance().shadowImage = UIImage()
UITabBar.appearance().backgroundImage = UIImage()
但它不適用於 iOS13,我正在尋找解決方案。 你有什么想法嗎?
Swift 4+:
在您的 TabBarController class 中寫下:
if #available(iOS 13, *) {
let appearance = self.tabBar.standardAppearance.copy()
appearance.backgroundImage = UIImage()
appearance.shadowImage = UIImage()
appearance.shadowColor = .clear
self.tabBar.standardAppearance = appearance
} else {
self.tabBar.shadowImage = UIImage()
self.tabBar.backgroundImage = UIImage()
}
對於標題調整使用這個:
appearance.stackedLayoutAppearance.normal.titlePositionAdjustment = UIOffset(horizontal: 0, vertical: -12)
用於物鏡 C
if (@available(iOS 13.0, *)) {
UITabBarAppearance* appearance = self.tabBar.standardAppearance.copy;
appearance.backgroundImage = [UIImage new];
appearance.shadowImage = [UIImage new];
appearance.shadowColor = [UIColor clearColor];
// Title adjustment
appearance.stackedLayoutAppearance.normal.titlePositionAdjustment = UIOffsetMake(0, -12);
self.tabBar.standardAppearance = appearance;
} else {
self.tabBar.shadowImage = [UIImage new];
self.tabBar.backgroundImage = [UIImage new];
}
在 iOS 13 中,您可以使用基於外觀的方法以及用於配置透明度的內置方法:
if #available(iOS 13, *) {
let appearance = self.tabBar.standardAppearance.copy()
appearance.configureWithTransparentBackground()
tabBar.standardAppearance = appearance
} else {
tabBar.backgroundImage = UIImage()
tabBar.shadowImage = UIImage()
tabBar.barTintColor = UIColor.clear
}
要再次更改它,您可以使用 configureWithDefaultBackground() 執行相同操作:
if #available(iOS 13, *) {
let appearance = self.tabBar.standardAppearance.copy()
appearance.configureWithDefaultBackground()
tabBar.standardAppearance = appearance
} else {
tabBar.barTintColor = nil
tabBar.backgroundImage = nil
tabBar.shadowImage = nil
}
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