自定义UISearchBar样式

UISearchBar默认样式：

image.png

自定义效果：

image.png

源码：

    UISearchBar *searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(50, 100, CGRectGetWidth(self.view.bounds) - 100, 50)];
    searchBar.placeholder = @"搜索";
    
    searchBar.backgroundImage = [[UIImage alloc] init];//去除灰色背景
    searchBar.tintColor =  [UIColor blueColor];//设置光标颜色
    
    UITextField *searchField = [searchBar valueForKey:@"_searchField"];
    searchField.backgroundColor = [UIColor colorWithRed:200/255.0 green:200/255.0 blue:200/255.0 alpha:1];//背景颜色
    
    //设置文字
    searchField.textColor = [UIColor blackColor];//文字颜色
    searchField.font = [UIFont systemFontOfSize:14];//文字Font
  
    //设置边框
    searchField.layer.borderWidth = 0.5;
    searchField.layer.borderColor = [UIColor grayColor].CGColor;
    
    //设置圆角
    searchField.layer.cornerRadius = 5;
    
    //设置placeholder颜色
    [searchField setValue:[UIColor lightGrayColor] forKeyPath:@"_placeholderLabel.textColor"];

    //设置clearButton样式
    [searchBar setImage:[UIImage imageNamed:@"searchClose"] forSearchBarIcon:UISearchBarIconClear state:UIControlStateNormal];
    [searchBar setImage:[UIImage imageNamed:@"searchClose"] forSearchBarIcon:UISearchBarIconClear state:UIControlStateSelected];

    //设置Search图标样式
    [searchBar setImage:[UIImage imageNamed:@"search_edit"] forSearchBarIcon:UISearchBarIconSearch state:UIControlStateNormal];
    [searchBar setImage:[UIImage imageNamed:@"search_edit"] forSearchBarIcon:UISearchBarIconSearch state:UIControlStateSelected];

    [self.view addSubview:searchBar];