更改UISearchBar TextField的帧大小？

Question

我无法设置UISearchBarTextField的框架....我应该创建自己的搜索栏还是有办法执行上述操作？

https://github.com/nst/iOS-Runtime-Headers/blob/master/Frameworks/UIKit.framework/UISearchBarTextField.h

Answer 1

在iOS 7中

访问文本字段，你必须在更多级别上重申。像这样改变你的代码

for (UIView *subView in self.searchBar.subViews){
    for (UIView *2ndLeveSubView in subView.subViews){
    if ([2ndLeveSubView isKindOfClass:[UITextField class]])
        {
            searchBarTextField = (UITextField *)2ndLeveSubView;

            break;
        }
    }
   }

但是，清除UISearchBar的后台并在文本字段中设置搜索栏图标的最佳方法是：

[searchBar setBackgroundImage:[[UIImage alloc] init] ];//if you want to remove background of uisearchbar
UIImage *image = [UIImage imageNamed: @"search_icon.png"];
[searchBar setImage:image forSearchBarIcon:UISearchBarIconSearch state:UIControlStateNormal];

Answer 2

你试过吗？

 [searchBarObj setFrame:CGRectMake(44, 0, 320 - 44, 43)];