iOS 7 中的 UISearchBar 外观问题

Posted 2023-03-16

【中文标题】iOS 7 中的 UISearchBar 外观问题

【英文标题】：UISearchBar appearance issues in iOS 7

【发布时间】：2013-10-14 08:09:30

【问题描述】：

我在 UISearchBar 中遇到了 ios 问题。我正在使用以下代码来自定义 UISearchBar ：

- (void)showSearchBarCustomColorAndDesignWithTargetForiOS7:(id)target
    UIView * subview;
    NSArray * subviews = [self subviews];

    for (subview in subviews)
        for (UIView *level2SubView in subview.subviews)
            if ([level2SubView isKindOfClass:[UITextField class]])
            
                [((UITextField*)level2SubView) setEnablesReturnKeyAutomatically:NO];
                ((UITextField*)level2SubView).delegate=target;
                [((UITextField*)level2SubView) setEnabled:TRUE];
                ((UITextField*)level2SubView).borderStyle = UITextBorderStyleLine;
                ((UITextField*)level2SubView).textColor = [UIColor whiteColor];
                ((UITextField*)level2SubView).font =[UIFont fontWithName:@"ProximaNova-Light" size:24.0];
                ((UITextField*)level2SubView).autocorrectionType = UITextAutocorrectionTypeNo;

                ((UITextField*)level2SubView).layer.borderWidth = 1.0;
                ((UITextField*)level2SubView).layer.borderColor = UIColorFromRGB(0x2774A7).CGColor;
                [[((UITextField*)level2SubView) valueForKey:@"textInputTraits"] setValue:[UIColor whiteColor] forKey:@"insertionPointColor"];
                ((UITextField*)level2SubView).autocapitalizationType = UITextAutocapitalizationTypeNone;
                break;

            
            if ([level2SubView isKindOfClass:NSClassFromString(@"UISearchBarBackground")])
            
                [level2SubView removeFromSuperview];
            
        
    

    self.delegate = target;
    [self setImage:[UIImage imageNamed:@"search_white.png"] forSearchBarIcon:UISearchBarIconSearch state:UIControlStateNormal];
    [self setImage:[UIImage imageNamed:@"delete_white.png"] forSearchBarIcon:UISearchBarIconClear state:UIControlStateNormal];
    [self setBackgroundColor:UIColorFromRGB(0x2774A7)];

每当我第一次点击 UISearchBar 时，它都不会调用 searchBarShouldBeginEditing。它也没有显示我输入的文本。但是，当我第二次单击时，它的行为正常。此外，它显示了一些黑色补丁。我的搜索栏是这样的：

【参考方案1】：

This issue may be by adding this code 

[[searchBar.subviews objectAtIndex:0] removeFromSuperview]; or

if ([level2SubView isKindOfClass:NSClassFromString(@"UISearchBarBackground")])
            
                [level2SubView removeFromSuperview];
            

Please remove this and see.