Question

我真的想更改键盘上“搜索”按钮的颜色以匹配我的应用主题。但如果这是不可能的，至少我想做

self.searchBar.keyboardAppearance = UIKeyboardAppearanceDark;

但这不起作用，因为我猜，searchBar不是UITextField。那么我怎么能成功呢？我的意思是，改变键盘上“搜索”的颜色：是完全还是只是黑暗主题。

Answer 1

对于iOS 8，请使用

self.searchBar.keyboardAppearance = UIKeyboardAppearance.Dark

Answer 2

试试这个，它适用于IOS 6，IOS 7和IOS 8：

[self setKeyboardOnSearchBar:self.searchBar];

功能：

-(void)setKeyboardOnSearchBar:(UISearchBar *)searchBar
{
    for(UIView *subView in searchBar.subviews) {
        if([subView conformsToProtocol:@protocol(UITextInputTraits)]) {
            [(UITextField *)subView setKeyboardAppearance:UIKeyboardAppearanceAlert];
            [(UITextField *)subView setReturnKeyType:UIReturnKeySearch];
        } else {
            for(UIView *subSubView in [subView subviews]) {
                if([subSubView conformsToProtocol:@protocol(UITextInputTraits)]) {
                    [(UITextField *)subSubView setReturnKeyType:UIReturnKeySearch];
                    [(UITextField *)subSubView setKeyboardAppearance:UIKeyboardAppearanceAlert];
                }
            }
        }
    }
}

Answer 3

尝试以下

for(UIView *subView in self.searchBar.subviews) {
        if([subView conformsToProtocol:@protocol(UITextInputTraits)]) {
            [(UITextField *)subView setKeyboardAppearance: UIKeyboardAppearanceDark];
        }
    }

Answer 4

Swift 4更新，iOS 11+：

    searchBar.keyboardAppearance = .dark
    searchBar.keyboardAppearance = .light
    searchBar.keyboardAppearance = .default

Answer 5

iOS 5的Swift 5：

如果特定视图（例如SearchBarView）中存在搜索栏，

UITextField.appearance(whenContainedInInstancesOf: [SearchBarView.self]).keyboardAppearance = .dark

仅会导致SearchBarView内的特定搜索栏发生变化。

否则，如果您想对所有搜索栏进行操作，

UITextField.appearance(whenContainedInInstancesOf: [UISearchBar.self]).keyboardAppearance = .dark

更改UISearchBar的键盘颜色

5 个答案: