UISearchBar的自定义

来源：互联网发布：c 反射加特性封装sql 编辑：程序博客网时间：2024/04/27 14:44

UISearchBar是由两个subView组成的，一个是UISearchBarBackGround,另一个是UITextField.
代码中没有直接操作两个subView的属性，要想修改，需要去子控件中修改
一，修改UISearchBar的背景框
删除它的方法有两种：一种是直接将 UISearchBarBackGround移去；另一种是创建一个UIView设置其颜色加载到UISearchBarBaceGround上作为UISearchBar的背景颜色

//获取其子视图 UIView *subView = _searchBar.subviews[0];     //1，移除    for (UIView *view in subView.subviews)    {        //搜索背景框        if ([view isKindOfClass:NSClassFromString(@"UISearchBarBackground")])        {            [view removeFromSuperview];        }    }     //2，替换     UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"40-di.png"]];[subView insertSubview:imageView atIndex:1];

二，修改其TextField

//获取其子视图 UIView *subView = _searchBar.subviews[0];    for (UIView *view in subView.subviews)    {        //自定义textField        if ([view isKindOfClass:[UITextField class]])        {            _textField = (UITextField *)view;            _textField.layer.borderWidth = 0.5;            _textField.layer.borderColor = H_LINECOLOR.CGColor;            _textField.layer.cornerRadius = 2;            _textField.clipsToBounds = YES;        }    }

三，代理方法
//输入搜索文字时隐藏搜索按钮，清空时显示

- (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar {searchBar.showsScopeBar = YES;[searchBar sizeToFit];[searchBar setShowsCancelButton:YES animated:YES];return YES;}- (BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar {searchBar.showsScopeBar = NO;[searchBar sizeToFit];[searchBar setShowsCancelButton:NO animated:YES];return YES;}

//改变搜索按钮文字
//改变UISearchBar取消按钮字体

for(id cc in [searchBar subviews]){if([cc isKindOfClass:[UIButton class]]){UIButton *btn = (UIButton *)cc;[btn setTitle:@"搜索" forState:UIControlStateNormal];}

0 0