删除UISearchbar左侧的图像

Question

我可以删除UISearchbar左侧的图像并添加新图像吗？

Answer 1

如果你的意思是放大镜，那么没有。没有公共API来更改或删除它。改为使用UITextField。

Answer 2

其实你可以。您需要浏览搜索栏的所有子视图，然后搜索搜索字段。

Answer 3

你不能轻易删除图像，但你可以轻松地插入一个UIImageView替换图像，像这样：

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

记住 - 寿命大约为作弊;）...

的图像具有要么像素完全对齐（与像素一起玩），要么新图像必须有白色背景，需要隐藏原始图像但不影响搜索栏的其余部分（如果您只是使用白色背景整个图像，左边的角落会干扰背景）。

Answer 4

你也可以继承的UISearchBar，然后用这个方法：

- (void)setTextFieldLeftView:(UIView *)view 
{ 
    UITextField *searchField = nil; 
    for (UIView *subview in self.subviews) 
    { 
     if ([subview isKindOfClass:[UITextField class]]) 
     { 
      searchField = (UITextField *)subview; 
      break; 
     } 
    } 

    if (searchField != nil) 
    { 
     searchField.leftView = view; 
    } 
} 

Answer 5

// hide magnifying glass 
    UITextField* searchField = nil; 
    for (UIView* subview in searchBar.subviews) { 
     if ([subview isKindOfClass:[UITextField class]]) { 
      searchField = (UITextField*)subview; 
      break; 
     } 
    } 
    if (searchField) { 
     searchField.leftViewMode = UITextFieldViewModeNever; 
    } 

这个隐藏放大镜。效果很好。

Answer 6

在iOS 5.0及，你可以自定义一个UISearchBar的特定实例或在使用UIAppearance代理一堆使用

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

搜索栏图像。

Answer 7

在iOS6的至少有一个[searchbar setImage:<#(UIImage *)#> forSearchBarIcon:<#(UISearchBarIcon)#> state:<#(UIControlState)#>]

属性ü可以设置:)

Answer 8

要完全删除的图标，你可以使用下面的代码行：

的Objective-C：

// Remove the icon, which is located in the left view 
[UITextField appearanceWhenContainedIn:[UISearchBar class], nil].leftView = nil; 

// Give some left padding between the edge of the search bar and the text the user enters 
[UISearchBar appearance].searchTextPositionAdjustment = UIOffsetMake(10, 0); 

斯威夫特：

// Remove the icon, which is located in the left view 
UITextField.appearanceWhenContainedInInstancesOfClasses([UISearchBar.self]).leftView = nil 

// Give some left padding between the edge of the search bar and the text the user enters 
UISearchBar.appearance().searchTextPositionAdjustment = UIOffsetMake(10, 0) 

Answer 9

替换一个1x1透明图像搜索栏图标和偏移的文本位置

UIImage *blank = [UIImage imageNamed:@"blank"]; 
[self.searchBar setImage:blank forSearchBarIcon:UISearchBarIconSearch state:UIControlStateNormal]; 
self.searchBar.searchTextPositionAdjustment = UIOffsetMake(-19, 0); 

Answer 10

How to change the position or hide magnifier icon in UISearchBar in IOS 7?

[[UITextField appearanceWhenContainedIn:[UISearchBar class], nil] setLeftViewMode:UITextFieldViewModeNever]; 

Answer 11

使用该代码来隐藏搜索栏的图标： -

[searchBarItems setImage:[UIImage imageNamed:@"searchIcon.jpg"] forSearchBarIcon:UISearchBarIconSearch state:UIControlStateNormal]; 

以searchIcon.jpg名称和图标隐藏 对我来说它的工作

Answer 12

在SWIFT 2.0做到这一点：

let textFieldInsideSearchBar = self.searchBar.valueForKey("searchField") as! UITextField 
textFieldInsideSearchBar.leftViewMode = UITextFieldViewMode.Never 

Answer 13

还是在斯威夫特4。0简单的一行：

UITextField.appearance(whenContainedInInstancesOf: [UISearchBar.self]).leftViewMode = .never 

注：这将从中包含内部UISearchBars ALL UITextFields取出左手图标。