iOS7键盘返回/完成/搜索色调颜色

Question

使用新的iOS7 UIView色调，可以快速主题化整个应用程序。它甚至在编辑UITextFields时会改变文本插入符的颜色。

但是，键盘的右下方“关闭”按钮（可以是“完成”，“搜索”等）始终为蓝色。有没有办法改变这个？如果它与应用程序其余部分的色调相匹配，那将会非常好看。

Answer 1

通过一点点黑客，你可以达到你想要的效果。但它可能无法通过应用审核。

-(NSArray*)subviewsOfView:(UIView*)view withType:(NSString*)type{
    NSString *prefix = [NSString stringWithFormat:@"<%@",type];
    NSMutableArray *subviewArray = [NSMutableArray array];
    for (UIView *subview in view.subviews) {
        NSArray *tempArray = [self subviewsOfView:subview withType:type];
        for (UIView *view in tempArray) {
            [subviewArray addObject:view];
        }
    }
    if ([[view description]hasPrefix:prefix]) {
        [subviewArray addObject:view];
    }
    return [NSArray arrayWithArray:subviewArray];
}

-(void)addColorToUIKeyboardButton{
    for (UIWindow *keyboardWindow in [[UIApplication sharedApplication] windows]) {
        for (UIView *keyboard in [keyboardWindow subviews]) {
            for (UIView *view in [self subviewsOfView:keyboard withType:@"UIKBKeyplaneView"]) {
                UIView *newView = [[UIView alloc] initWithFrame:[(UIView *)[[self subviewsOfView:keyboard withType:@"UIKBKeyView"] lastObject] frame]];
                newView.frame = CGRectMake(newView.frame.origin.x + 2, newView.frame.origin.y + 1, newView.frame.size.width - 4, newView.frame.size.height -3);
                [newView setBackgroundColor:[UIColor greenColor]];
                newView.layer.cornerRadius = 4;
                [view insertSubview:newView belowSubview:((UIView *)[[self subviewsOfView:keyboard withType:@"UIKBKeyView"] lastObject])];

            }
        }
    }
}

我用来解码视图层次结构的应用是：http://revealapp.com/

最终结果如下：

Answer 2

您无法更改按钮色调颜色，但可以使用keyboard

设置UIKeyboardAppearance色调颜色

示例：yourTextField.keyboardAppearance = UIKeyboardAppearanceDark;

这是Apple提供的一个非常好的文档，请看这里：

Managing the Keyboard

Answer 3

let colors: [UIColor] = [.red, .blue, .green, .purple, .yellow, .orange, .brown]

if let window = UIApplication.shared.windows.first(where: { 
    $0.isType(string: "UIRemoteKeyboardWindow") 
}) {
    if let keyplaneView = window.subview(ofType: "UIKBKeyplaneView") {
        for (i, keyView) in keyplaneView.subviews.filter({
            $0.isType(string: "UIKBKeyView") 
        }).enumerated() {
            let view = UIView(frame: keyView.bounds)
            view.backgroundColor = colors[i].withAlphaComponent(0.5)
            keyView.addSubview(view)
        }
    }
}

以下是UIKBKeyplaneView：

中按键的颜色图