搜索栏中的iOS更改图标

Question

我正在尝试自定义搜索栏.我已经想出如何更改搜索栏中的背景和文本框,但我找不到更改栏中默认图标的方法(放大玻璃图标).

有没有办法做到这一点？

Answer 1

开源是你的朋友(就像可可一样,呵呵):

- (void)setSearchIconToFavicon {
  // Really a UISearchBarTextField, but the header is private.
  UITextField *searchField = nil;
  for (UIView *subview in searchBar.subviews) {
    if ([subview isKindOfClass:[UITextField class]]) {
      searchField = (UITextField *)subview;
      break;
    }
  }

  if (searchField) {  
    UIImage *image = [UIImage imageNamed: @"favicon.png"];
    UIImageView *iView = [[UIImageView alloc] initWithImage:image];
    searchField.leftView = iView;
    [iView release];
  }  
}

自iOS 5.0起:

[self.testSearchBar setImage:[UIImage imageNamed: @"favicon.png"]
            forSearchBarIcon:UISearchBarIconSearch
                       state:UIControlStateNormal];