如何自定义 UISearchBar 的外观

Question

我想自定义搜索栏，我的意思是白色框。我可以做吗？ 有关于这方面的一些文档吗？ 有没有办法隐藏白框，但不隐藏字母。 我至少可以把盒子弄小一点吗？我的意思是身高较低

Answer 1

到IOS 5.0你就有机会使用

  [[UISearchBar appearance] setSearchFieldBackgroundImage:[UIImage imageNamed:@"searchbar.png"]forState:UIControlStateNormal];

Answer 2

这是我一直在寻找的解决方案：
子类化 UISearchBar，&覆盖方法layoutSubviews

- (void)layoutSubviews {
   UITextField *searchField;
   NSUInteger numViews = [self.subviews count];
   for(int i = 0; i < numViews; i++) {
      if([[self.subviews objectAtIndex:i] isKindOfClass:[UITextField class]]) { //conform?
        searchField = [self.subviews objectAtIndex:i];
      }
   }
   if(!(searchField == nil)) {
       searchField.textColor = [UIColor whiteColor];
       [searchField setBackground: [UIImage imageNamed:@"buscador.png"] ];
       [searchField setBorderStyle:UITextBorderStyleNone];
   }

   [super layoutSubviews];
}

Answer 3

您可以更改以下一些常见属性来自定义 UISearchBar：

Answer 4

// Search Bar Customization
// Background Image
[self.searchDisplayController.searchBar setBackgroundImage:[[UIImage alloc]init]];

// Backgroud Color
[self.searchDisplayController.searchBar setBackgroundColor:[UIColor redColor]];

// Search Bar Cancel Button Color
[[UIBarButtonItem appearanceWhenContainedIn: [UISearchBar class], nil] setTintColor:[UIColor whiteColor]];

// set Search Bar Search icon
[self.searchDisplayController.searchBar setImage:[UIImage imageNamed:@"search_ico.png"]
                                forSearchBarIcon:UISearchBarIconSearch
                                           state:UIControlStateNormal];

// set Search Bar textfield background image
 [[UISearchBar appearance] setSearchFieldBackgroundImage:[UIImage imageNamed:@"search_box.png"]
                                                forState:UIControlStateNormal];

// set Search Bar texfield corder radius
UITextField *txfSearchField = [self.searchDisplayController.searchBar valueForKey:@"_searchField"];
txfSearchField.layer.cornerRadius = 10.8f;

Answer 5

您可以更改 UISearchBar 的背景

自定义 UISearchBar 背景

如何控制 UISearchBar 背景颜色

Answer 6

Swift 中的一些示例

UITextField.appearanceWhenContainedInInstancesOfClasses([UISearchBar.self]).defaultTextAttributes = [NSForegroundColorAttributeName : UIColor.whiteColor()]
        UITextField.appearanceWhenContainedInInstancesOfClasses([UISearchBar.self]).attributedPlaceholder = NSAttributedString(string: "", attributes: [NSForegroundColorAttributeName : UIColor.whiteColor()])
        UITextField.appearanceWhenContainedInInstancesOfClasses([UISearchBar.self]).tintColor = UIColor.whiteColor()

  UISearchBar.appearance().setImage(UIImage(named: "searchBarSearchIcon"), forSearchBarIcon: UISearchBarIcon.Search, state: UIControlState.Normal)
        UISearchBar.appearance().setImage(UIImage(), forSearchBarIcon: UISearchBarIcon.Clear, state: UIControlState.Normal)

Answer 7

很少有尝试，包括子类 UISearchBar 并破解它的 layoutSubviews 或 drawLayer:。 iOS 5之后，最好的方法是使用UIAppearance。

// Configure your images
UIImage *backgroundImage = [UIImage imageNamed:@"searchbar"];
UIImage *searchFieldImage = [[UIImage imageNamed:@"searchfield"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 5, 0, 5)];

// Set it to your UISearchBar appearance
[[UISearchBar appearance] setBackgroundImage:backgroundImage];
[[UISearchBar appearance] setSearchFieldBackgroundImage:searchFieldImage forState:UIControlStateNormal];

Answer 8

使用下面的代码来透明您的搜索栏

// Set it to your UISearchBar appearance

[[UISearchBar appearance] setBackgroundColor:[UIColor clearColor]];
[[UISearchBar appearance] setBackgroundImage:backgroundImage];
[[UISearchBar appearance] setSearchFieldBackgroundImage:searchFieldImage 
                                                forState:UIControlStateNormal];

Answer 9

(UITextField.appearance(whenContainedInInstancesOf: [UISearchBar.self]) ).defaultTextAttributes = [NSForegroundColorAttributeName: UIColor.white]