Question

我知道如何在搜索字段周围删除/更改UISearchBar背景颜色：

[[self.searchBar.subviews objectAtIndex:0] removeFromSuperview];
self.searchBar.backgroundColor = [UIColor grayColor];

achieved UISearchBar customization

但不知道如何在其中做到这一点：

desired UISearchBar customization

这需要与iOS 4.3 +兼容。

Answer 1

只需自定义文本字段。

我只是这样做，它对我来说很好（iOS 7）。

UITextField *txfSearchField = [_searchBar valueForKey:@"_searchField"];
txfSearchField.backgroundColor = [UIColor redColor];

这样您就不需要创建图像，调整大小等等......

Answer 2

不涉及任何私有API的解决方案！：）

目前（probably since iOS 5）您可以这样做，只需一种颜色案例，就这样：

[[UITextField appearanceWhenContainedIn:[UISearchBar class], nil] setBackgroundColor:[UIColor redColor]];

但请记住，因为它基于外观，应用程序的全局变化（它可能是解决方案的优势或劣势）。

对于Swift，您可以使用（适用于iOS 9及更高版本）：

if #available(iOS 9.0, *) { UITextField.appearanceWhenContainedInInstancesOfClasses([UISearchBar.self]).backgroundColor = UIColor.darkGrayColor() }

如果您的项目支持iOS 9及更高版本，则不需要#available。

如果您需要支持早期版本的iOS并希望使用Swift，请查看this问题。

Answer 3

使用此代码更改searchBar的UITextField backgroundImage：

UITextField *searchField;
NSUInteger numViews = [searchBar.subviews count];
for (int i = 0; i < numViews; i++) {
    if ([[searchBar.subviews objectAtIndex:i] isKindOfClass:[UITextField class]]) { //conform?
        searchField = [searchBar.subviews objectAtIndex:i];
    }
}
if (searchField) {
    searchField.textColor = [UIColor whiteColor];
    [searchField setBackground: [UIImage imageNamed:@"yourImage"]]; //set your gray background image here
    [searchField setBorderStyle:UITextBorderStyleNone];
}

使用以下代码更改UISearchBarIcon：

 UIImageView *searchIcon = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"yourSearchBarIconImage"]];
searchIcon.frame = CGRectMake(10, 10, 24, 24);
[searchBar addSubview:searchIcon];
[searchIcon release];

此外，要更改searchBar图标，您可以在UISearchBar上使用以下内置方法（可从 iOS 5 + 获得）：

- (void)setImage:(UIImage *)iconImage forSearchBarIcon:(UISearchBarIcon)icon state:(UIControlState)state

在这里你可以设置4种UISearchBarIcon，即：

UISearchBarIconBookmark
UISearchBarIconClear
UISearchBarIconResultsList
UISearchBarIconSearch

我希望这可以帮助你...

Answer 4

详细

Xcode 10.2（10E125）
Swift 5

UISearchBar customising sample

解决方案

extension UISearchBar {

    private func getViewElement<T>(type: T.Type) -> T? {

        let svs = subviews.flatMap { $0.subviews }
        guard let element = (svs.filter { $0 is T }).first as? T else { return nil }
        return element
    }

    func setTextFieldColor(color: UIColor) {

        if let textField = getViewElement(type: UITextField.self) {
            switch searchBarStyle {
                case .minimal:
                    textField.layer.backgroundColor = color.cgColor
                    textField.layer.cornerRadius = 6

                case .prominent, .default:
                    textField.backgroundColor = color
            }
        }
    }
}

用法

let searchBar = UISearchBar(frame: CGRect(x: 0, y: 20, width: UIScreen.main.bounds.width, height: 44))
//searchBar.searchBarStyle = .prominent
view.addSubview(searchBar)
searchBar.placeholder = "placeholder"
searchBar.setTextFieldColor(color: UIColor.green.withAlphaComponent(0.3))

结果1

 searchBar.searchBarStyle = .prominent // or default

结果2

 searchBar.searchBarStyle = .minimal

完整样本

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        let searchBar = UISearchBar(frame: CGRect(x: 0, y: 20, width: UIScreen.main.bounds.width, height: 44))
        //searchBar.searchBarStyle = .minimal
        //searchBar.searchBarStyle = .prominent
        view.addSubview(searchBar)
        searchBar.placeholder = "placeholder"
        searchBar.setTextFieldColor(color: UIColor.green.withAlphaComponent(0.3))
    }
}

Answer 5

根据UISearchBar documentation：

您应该将此功能用于iOS 5.0 +。

- (void)setSearchFieldBackgroundImage:(UIImage *)backgroundImage forState:(UIControlState)state

用法示例：

[mySearchBar setSearchFieldBackgroundImage:myImage forState:UIControlStateNormal];

可悲的是，在iOS 4中，您需要恢复不太复杂的方法。请参阅其他答案。

Answer 6

正如Accatyyc所说，iOS5 +使用setSearchFieldBackgroundImage，但你需要创建一个图形，或者执行以下操作：

CGSize size = CGSizeMake(30, 30);
// create context with transparent background
UIGraphicsBeginImageContextWithOptions(size, NO, [UIScreen mainScreen].scale);

// Add a clip before drawing anything, in the shape of an rounded rect
[[UIBezierPath bezierPathWithRoundedRect:CGRectMake(0,0,30,30)
                            cornerRadius:5.0] addClip];
[[UIColor grayColor] setFill];

UIRectFill(CGRectMake(0, 0, size.width, size.height));
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

[self.searchBar setSearchFieldBackgroundImage:image forState:UIControlStateNormal];

Answer 7

苹果方式怎么样？

UISearchBar.appearance().setSearchFieldBackgroundImage(myImage, for: .normal)

您可以在设计中设置任何图像！

但是如果你想创建所有的程序，你可以这样做

我的解决方案 Swift 3

let searchFieldBackgroundImage = UIImage(color: .searchBarBackground, size: CGSize(width: 44, height: 30))?.withRoundCorners(4)
UISearchBar.appearance().setSearchFieldBackgroundImage(searchFieldBackgroundImage, for: .normal)

我使用帮助扩展名

public extension UIImage {

    public convenience init?(color: UIColor, size: CGSize = CGSize(width: 1, height: 1)) {
        let rect = CGRect(origin: .zero, size: size)
        UIGraphicsBeginImageContextWithOptions(rect.size, false, 0.0)
        color.setFill()
        UIRectFill(rect)
        let image = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()

        guard let cgImage = image?.cgImage else { return nil }
        self.init(cgImage: cgImage)
    }

    public func withRoundCorners(_ cornerRadius: CGFloat) -> UIImage? {
        UIGraphicsBeginImageContextWithOptions(size, false, scale)
        let rect = CGRect(origin: CGPoint.zero, size: size)
        let context = UIGraphicsGetCurrentContext()
        let path = UIBezierPath(roundedRect: rect, cornerRadius: cornerRadius)

        context?.beginPath()
        context?.addPath(path.cgPath)
        context?.closePath()
        context?.clip()

        draw(at: CGPoint.zero)

        let image = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext();

        return image;
    }

}

Answer 8

我发现这是使用UISearchBarStyle.Minimal

自定义Swift 2.2和iOS 8+中各种搜索栏属性外观的最佳方式

searchBar = UISearchBar(frame: CGRectZero)
searchBar.tintColor = UIColor.whiteColor() // color of bar button items
searchBar.barTintColor = UIColor.fadedBlueColor() // color of text field background
searchBar.backgroundColor = UIColor.clearColor() // color of box surrounding text field
searchBar.searchBarStyle = UISearchBarStyle.Minimal

// Edit search field properties
if let searchField = searchBar.valueForKey("_searchField") as? UITextField  {
  if searchField.respondsToSelector(Selector("setAttributedPlaceholder:")) {
    let placeholder = "Search"
    let attributedString = NSMutableAttributedString(string: placeholder)
    let range = NSRange(location: 0, length: placeholder.characters.count)
    let color = UIColor(white: 1.0, alpha: 0.7)
    attributedString.addAttribute(NSForegroundColorAttributeName, value: color, range: range)
    attributedString.addAttribute(NSFontAttributeName, value: UIFont(name: "AvenirNext-Medium", size: 15)!, range: range)
    searchField.attributedPlaceholder = attributedString

    searchField.clearButtonMode = UITextFieldViewMode.WhileEditing
    searchField.textColor = .whiteColor()
  }
}

// Set Search Icon
let searchIcon = UIImage(named: "search-bar-icon")
searchBar.setImage(searchIcon, forSearchBarIcon: .Search, state: .Normal)

// Set Clear Icon
let clearIcon = UIImage(named: "clear-icon")
searchBar.setImage(clearIcon, forSearchBarIcon: .Clear, state: .Normal)

// Add to nav bar
searchBar.sizeToFit()
navigationItem.titleView = searchBar

Answer 9

更好的解决方案是在UITextField

中设置UISearchBar的外观

[[UITextField appearanceWhenContainedIn:[UISearchBar class], nil] setBackgroundColor:[UIColor grayColor]];

Answer 10

不使用私有API：

for (UIView* subview in [[self.searchBar.subviews lastObject] subviews]) {
    if ([subview isKindOfClass:[UITextField class]]) {
        UITextField *textField = (UITextField*)subview;
        [textField setBackgroundColor:[UIColor redColor]];
    }
}

Answer 11

使用类别方法遍历所有视图（在iOS 7中验证，不使用私有API）：

@implementation UISearchBar (MyAdditions)

- (void)changeDefaultBackgroundColor:(UIColor *)color {
  for (UIView *subview in self.subviews) {
    for (UIView *subSubview in subview.subviews) {
      if ([subSubview isKindOfClass:[UITextField class]]) {
        UITextField *searchField = (UITextField *)subSubview;
        searchField.backgroundColor = color;
        break;
      }
    }
  }
}

@end

因此，在将类别导入您的课程后，只需使用它：

[self.searchBar changeDefaultBackgroundColor:[UIColor grayColor]];

请注意，如果您在[[UISearchBar alloc] init]行之后立即，那么它将无法使用，因为搜索栏的子视图仍在创建中。在设置搜索栏的其余部分后，将它放下几行。

Answer 12

迅速在iOS13中尝试

@IBOutlet weak var searchBar: UISearchBar!
searchBar.barTintColor = .systemIndigo
searchBar.searchTextField.backgroundColor = .white

Answer 13

仅更改颜色：

searchBar.tintColor = [UIColor redColor];

用于应用背景图像：

[self.searchBar setSearchFieldBackgroundImage:
                          [UIImage imageNamed:@"Searchbox.png"]
                                     forState:UIControlStateNormal];

Answer 14

这是Swift版本（swift 2.1 / IOS 9）

for view in searchBar.subviews {
    for subview in view.subviews {
        if subview .isKindOfClass(UITextField) {
            let textField: UITextField = subview as! UITextField
            textField.backgroundColor = UIColor.lightGrayColor()
        }
    }
}

Answer 15

要在iOS 13+上执行此操作，

searchController.searchBar.searchTextField.backgroundColor = // your color here

请注意，默认情况下，searchTextField.borderStyle设置为roundedRect，这将在您要设置的颜色上应用一点灰色叠加层。如果不希望这样做，

searchController.searchBar.searchTextField.borderStyle = .none

这将消除灰色的覆盖层，但也消除圆角。

Answer 16

- (void)viewDidLoad
{
    [super viewDidLoad];
    [[self searchSubviewsForTextFieldIn:self.searchBar] setBackgroundColor:[UIColor redColor]];
}

- (UITextField*)searchSubviewsForTextFieldIn:(UIView*)view
{
    if ([view isKindOfClass:[UITextField class]]) {
        return (UITextField*)view;
    }
    UITextField *searchedTextField;
    for (UIView *subview in view.subviews) {
        searchedTextField = [self searchSubviewsForTextFieldIn:subview];
        if (searchedTextField) {
            break;
        }
    }
    return searchedTextField;
}

Answer 17

Swift 3

for subview in searchBar.subviews {
    for innerSubview in subview.subviews {
        if innerSubview is UITextField {
            innerSubview.backgroundColor = UIColor.YOUR_COLOR_HERE
        }
    }
}

Answer 18

对于iOS 9，请使用：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.

// Remove lag on oppening the keyboard for the first time
UITextField *lagFreeField = [[UITextField alloc] init];
[self.window addSubview:lagFreeField];
[lagFreeField becomeFirstResponder];
[lagFreeField resignFirstResponder];
[lagFreeField removeFromSuperview];

//searchBar background color change
[[UITextField appearanceWhenContainedInInstancesOfClasses:@[[UISearchBar class]]] setBackgroundColor:[UIColor greenColor]];
[[UITextField appearanceWhenContainedInInstancesOfClasses:@[[UISearchBar class]]] setTextColor:[UIColor blackColor];

return YES;
}

Answer 19

对于Swift 3+，请使用：

{{1}}

Answer 20

对于Swift 4，我建议您仅执行此操作，而无需其他代码：

self.searchBar.searchBarStyle = .prominent
self.searchBar.barStyle = .black

如果您不希望外部背景为灰色，也可以将.prominent更改为.minimal。

Answer 21

Searchbar现在具有从iOS 13开始的新实例属性SearchTextField。 https://developer.apple.com/documentation/uikit/uisearchbar/3175433-searchtextfield

if(@available(iOS 13, *))
    searchBar.searchTextField.backgroundColor = [UIColor whiteColor];
    searchBar.searchTextField.textColor = [UIColor blackColor];
else{
    //API that supports below iOS 13
    //This will set it for all the UISearchBars in your application
    [[UITextField appearanceWhenContainedInInstancesOfClasses:@[[UISearchBar class]]] setBackgroundColor:[UIColor whiteColor]];
    [[UITextField appearanceWhenContainedInInstancesOfClasses:@[[UISearchBar class]]] setTextColor:[UIColor blackColor]];
}

Answer 22

@EvGeniy Ilyin EvGeniy Ilyin的解决方案是最好的。我根据此解决方案编写了 Objective-C 版本。

创建一个UIImage类别，并在 UIImage + YourCategory.h

中宣传两个类方法

+ (UIImage *)imageWithColor:(UIColor *)color withSize:(CGRect)imageRect;
+ (UIImage *)roundImage:(UIImage *)image withRadius:(CGFloat)radius;

在 UIImage + YourCategory.m

中实施方法

// create image with your color
+ (UIImage *)imageWithColor:(UIColor *)color withSize:(CGRect)imageRect
{
    UIGraphicsBeginImageContext(imageRect.size);
    CGContextRef context = UIGraphicsGetCurrentContext();

    CGContextSetFillColorWithColor(context, [color CGColor]);
    CGContextFillRect(context, imageRect);

    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    return image;
}

// get a rounded-corner image from UIImage instance with your radius
+ (UIImage *)roundImage:(UIImage *)image withRadius:(CGFloat)radius
{
    CGRect rect = CGRectMake(0.0, 0.0, 0.0, 0.0);
    rect.size = image.size;
    UIGraphicsBeginImageContextWithOptions(image.size, NO, [UIScreen mainScreen].scale);
    UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:rect
                                                cornerRadius:radius];
    [path addClip];
    [image drawInRect:rect];

    image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    return image;
}

在UISearchBar

中制作自己的ViewController

CGRect rect = CGRectMake(0.0, 0.0, 44.0, 30.0);
UIImage *colorImage = [UIImage imageWithColor:[UIColor yourColor] withSize:rect];
UIImage *finalImage = [UIImage roundImage:colorImage withRadius:4.0];
[yourSearchBar setSearchFieldBackgroundImage:finalImage forState:UIControlStateNormal];

Answer 23

这对我有用。

- (void)setupSearchBar
{
    [self.searchBar setReturnKeyType:UIReturnKeySearch];
    [self.searchBar setEnablesReturnKeyAutomatically:NO];
    [self.searchBar setPlaceholder:FOLocalizedString(@"search", nil)];
    [self.searchBar setBackgroundImage:[UIImage new]];
    [self.searchBar setBackgroundColor:[UIColor myGreyBGColor]];
    [self.searchBar setBarTintColor:[UIColor myGreyBGColor]];
    [self.searchBar setTintColor:[UIColor blueColor]];
}

Answer 24

这帮助我更改了搜索栏中textField的背景颜色。

UITextField.appearance(whenContainedInInstancesOf: [UISearchBar.self]).backgroundColor = .white

Answer 25

iOS 13，Swift 5

searchBar.searchTextField.backgroundColor = .gray
 searchBar.searchTextField.tintColor = .white
 searchBar.searchTextField.textColor = .white

如何在iOS上更改UISearchBar组件的内部背景颜色

25 个答案:

详细

解决方案

用法

结果1

结果2

完整样本

您可以在设计中设置任何图像！