自定义searchBar 的一些设置

//自定义 searchBar的搜索按钮

 for(UIView *view in  [[[self.searchBar subviews] objectAtIndex:0] subviews]) {

        if([view isKindOfClass:[NSClassFromString(@"UINavigationButton") class]]) {

            UIButton * cancel =(UIButton *)view;

            [cancel setTitle:@"搜索" forState:UIControlStateNormal];

            [cancel setTitleColor:RGBColor(51, 51, 51) forState:UIControlStateNormal];

            [cancel addTarget:self action:@selector(seatchAction) forControlEvents:UIControlEventTouchUpInside];

        }

    }

  

//自定义 searchBar的搜索框的背景亚颜色

 for (UIView* subview in [[self.searchBar.subviews lastObject] subviews]) {

        

        if ([subview isKindOfClass:[UITextField class]]) {

            UITextField *textField = (UITextField*)subview;

            textField.textColor = [UIColor blackColor];  //修改输入字体的颜色

            [textField setBackgroundColor:RGBColor(238, 238, 238)];      //修改输入框的颜色

            [textField setValue:RGBColor(174, 174, 174) forKeyPath:@"_placeholderLabel.textColor"];   //修改placeholder的颜色

        } else if ([subview isKindOfClass:NSClassFromString(@"UISearchBarBackground")])

        {

            [subview removeFromSuperview];

        }

    }