iOS UILabel.appearance().textColor 不可用
iOS UILabel.appearance().textColor is not available
我正在尝试更改我应用中所有标签的默认文本颜色。我曾尝试使用 UILabel.appearance().textColor
,但它对我不可用。有人可以建议我做错了什么吗?查了很多关于SO的问题,最新的是。根据描述,它是可用的。
如果我改变了背景颜色 - 就可以了。试图改变 tintColor
- 没有效果。为什么?它是否已从 UIAppearance 协议中删除?
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate {
var window: UIWindow?
var smStore: SMStore?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// UIAppearance configuring
let tintColor = UIColor.white
//let backgroundColor = UIColor(red: 5, green: 72, blue: 149, alpha: 1)
let backgroundColor = UIColor.black
// Global tintColor
window?.tintColor = tintColor
// UIViews
UIView.appearance().tintColor = tintColor
UIView.appearance().backgroundColor = backgroundColor
// UINavigationBars
UINavigationBar.appearance().tintColor = tintColor
UINavigationBar.appearance().backgroundColor = tintColor
// UITableViews
UITableView.appearance().backgroundColor = backgroundColor
UITableViewCell.appearance().backgroundColor = backgroundColor
UITableViewCell.appearance().tintColor = tintColor
// UILabels
UILabel.appearance().backgroundColor = UIColor.green
...
}
Xcode9,Swift4.
只需输入即可编译。
UILabel.appearance().textColor = .red
我正在尝试更改我应用中所有标签的默认文本颜色。我曾尝试使用 UILabel.appearance().textColor
,但它对我不可用。有人可以建议我做错了什么吗?查了很多关于SO的问题,最新的是
如果我改变了背景颜色 - 就可以了。试图改变 tintColor
- 没有效果。为什么?它是否已从 UIAppearance 协议中删除?
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate {
var window: UIWindow?
var smStore: SMStore?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// UIAppearance configuring
let tintColor = UIColor.white
//let backgroundColor = UIColor(red: 5, green: 72, blue: 149, alpha: 1)
let backgroundColor = UIColor.black
// Global tintColor
window?.tintColor = tintColor
// UIViews
UIView.appearance().tintColor = tintColor
UIView.appearance().backgroundColor = backgroundColor
// UINavigationBars
UINavigationBar.appearance().tintColor = tintColor
UINavigationBar.appearance().backgroundColor = tintColor
// UITableViews
UITableView.appearance().backgroundColor = backgroundColor
UITableViewCell.appearance().backgroundColor = backgroundColor
UITableViewCell.appearance().tintColor = tintColor
// UILabels
UILabel.appearance().backgroundColor = UIColor.green
...
}
Xcode9,Swift4.
只需输入即可编译。
UILabel.appearance().textColor = .red