Swift 更改UISearchBar取消按钮的字体样式

我正在尝试将UISearchBar取消按钮的字体更改为“OpenSAN”，但无法访问任何属性。我只能更改UISearchBar的色调，这会更改搜索栏“取消”按钮文本和搜索栏UITextField光标的颜色：

searchBar.tintColor = UIColor(red: 187.0/255.0, green: 187.0/255.0, blue: 187.0/255.0, alpha: 1.0)

---

有没有办法做到这一点

试试这样的东西，对我很管用

 UIBarButtonItem.appearanceWhenContainedInInstancesOfClasses([UISearchBar.self]).setTitleTextAttributes([NSFontAttributeName : UIFont(name: "OpenSans", size: 15)!], forState: .Normal)

如果还想更改颜色，请将其添加到属性数组中

 NSForegroundColorAttributeName : UIColor.whiteColor()

注意：iOS 9中提供了swift 2：

if #available(iOS 9.0, *) {
     UIBarButtonItem.appearanceWhenContainedInInstancesOfClasses([UISearchBar.self]).setTitleTextAttributes([NSFontAttributeName : UIFont.systemFontOfSize(15, weight: UIFontWeightLight)], forState: .Normal)
} else {
     // Fallback on earlier versions
}

迅捷3：

UIBarButtonItem.appearance(whenContainedInInstancesOf: [UISearchBar.self]).setTitleTextAttributes([NSFontAttributeName : UIFont(name: "OpenSans", size: 15)!], for: .normal)

目标C：

[[UIBarButtonItem appearanceWhenContainedIn:[UISearchBar class], nil] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
                                                  [UIColor blueColor], 
                                                  UITextAttributeTextColor, 
                                                  [UIColor darkGrayColor], 
                                                  UITextAttributeTextShadowColor, 
                                                  [NSValue valueWithUIOffset:UIOffsetMake(0, -1)], 
                                                  UITextAttributeTextShadowOffset,
                                                  nil] 
                                        forState:UIControlStateNormal];

这是Swift 3.0版的

UIBarButtonItem.appearance(whenContainedInInstancesOf: [UISearchBar.self]).setTitleTextAttributes([NSFontAttributeName : UIFont(name: "OpenSans", size: 15)!], for: .normal)

---

Swift 4.2

UIBarButtonItem.appearance(whenContainedInInstancesOf: [UISearchBar.self]).setTitleTextAttributes([NSAttributedString.Key.font : UIFont(name: "your_font_name", size: 16)!], for: .normal)

---

你不会碰巧有这样的斯威夫特吧？很漂亮，伙计。谢谢。您可能需要注意的是，“AppearanceWhenContainedInstancesofClass”仅适用于iOS 9.0>@JLO我不确定您的意思，这是swift。