搜索栏背景颜色灰色ios7

Question

我目前正在开发一款在ios7出现之前工作正常的应用程序。搜索栏过去是透明的，并混合到导航栏的蓝色背景中。现在我在ios7中工作，导航栏是蓝色的，但搜索栏有灰色背景。如何将其设为蓝色或透明？

这是一张图片：

Answer 1

试试这个：

if(IOS_7)
{
    self.searchBar.searchBarStyle = UISearchBarStyleMinimal;
}

Answer 2

你可以设置＆＃34; Bar Tint＆＃34;到＆＃34;清除颜色＆＃34;在Interface Builder（.xib）中：

也可以在代码中完成：

self.searchBar.barTintColor = [UIColor clearColor];

Answer 3

要使其变为平面颜色，您只需删除UISearchBarBackground视图。

我创建了一个递归方法来正确清理搜索栏。

- (void) removeUISearchBarBackgroundInViewHierarchy:(UIView *)view
{
    for (UIView *subview in [view subviews]) {
        if ([subview isKindOfClass:NSClassFromString(@"UISearchBarBackground")]) {
            [subview removeFromSuperview];
            break; //To avoid an extra loop as there is only one UISearchBarBackground
        } else {
            [self removeUISearchBarBackgroundInViewHierarchy:subview];
        }
    }
}

您只需将搜索栏发送到该方法，然后再更改颜色。

[self removeUISearchBarBackgroundInViewHierarchy:self.searchDisplayController.searchBar];
self.searchDisplayController.searchBar.backgroundColor = yourUIColor;

Answer 4

Swift 4.2

您可以使用此扩展名来更改SearchBar的字体和背景颜色。

#include <string>
#include <iostream>
std::string &&f(std::string &&a) {
    return std::move(a);   
}

int main() {
    std::string &&a = f("lol");
    std::cout << a << std::endl;
    return 0;
}

Answer 5

**编辑 - 这在iOS 7中适用于我

// Set the color to whatever blue color that is in your screenshot
self.searchBar.backgroundImage = [UIImage imageWithColor:[UIColor redColor] cornerRadius:5.0f];

如果您希望所有搜索栏都是某种颜色，请执行以下操作：

// Put this in your app delegate's didFinishLaunchingWithOptions method
// Whatever color you want for searchBarColor
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7) { // For iOS 7
    UIColor *searchBarColor = [UIColor blueColor];
    [[UISearchBar appearance] setBackgroundColor:searchBarColor];
}

如果您只是希望特定搜索栏背景为颜色：

// Set it in your viewDidLoad method of your controller
// Replace the yourSearchBar property with whatever you're doing to instantiate the search bar
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7) { // For iOS 7
{
    UIColor *searchBarColor = [UIColor blueColor];
    self.yourSearchBar.backgroundColor = searchBarColor;
}