如何将背景颜色设置为搜索栏的清晰颜色

Question

我想将搜索栏的背景设为清晰或外观的导航栏颜色

目前正在显示

如何使背景清除serach bar？

Answer 1

因为UI SearchBar有自己的背景视图，它是黑色的，如果我们删除该视图，那么UISearchbar的背景将变得清晰：

for (UIView *subview in mySearchBar.subviews) {
    if ([subview isKindOfClass:NSClassFromString(@"UISearchBarBackground")]) {
        [subview removeFromSuperview];
        break;
    }
} 

Answer 2

//搜索栏（使用背景图片）

  UISearchBar* bar = [[UISearchBar alloc] initWithFrame:CGRectMake(568, 30, 200, 44)];
     UIImageView* iview = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"blue.png"]];
    iview.frame = CGRectMake(0, 0, 200, 44);

    [bar insertSubview:iview atIndex:1];
    [iview release];
    [self.view addSubview:bar];
    [bar release];

或（使用颜色）

//搜索栏

UISearchBar* bar = [[UISearchBar alloc] initWithFrame:CGRectMake(568, 30, 200, 44)];

[[[bar subviews] objectAtIndex:0] setAlpha:0.0];

bar.tintColor = [UIColor colorWithRed:.376f green:.386f blue:.452f alpha:1.0];
    bar.clipsToBounds = YES;
[self.view addSubview:bar];
[bar release];

Answer 3

按如下方式设置UISearchBar的背景图像。

[searchBar setBackgroundImage:[UIImage new]];

现在UISearchBar背景颜色将消失。也适用于iOS 7.1

Answer 4

清除背景颜色（如果要设置图像，请使用注释代码）

for (UIView *subview in searchBar.subviews) 
{
    if ([subview isKindOfClass:NSClassFromString(@"UISearchBarBackground")]) 
    {   
       // if You want set iamge then use comment code
      /*  UIView *backgroundView = [[UIView alloc] initWithFrame:subview.frame];
        bg.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"searchBar"]];
        [self.searchBar insertSubview:backgroundView aboveSubview:subview];*/

        [subview removeFromSuperview];
    }
}

Answer 5

清除搜索栏的背景视图：

[[[self.searchBar subviews] objectAtIndex:0] setHidden:YES];
    for (id subview in self.searchBar.subviews) {
        if ([subview isKindOfClass:NSClassFromString(@"UISearchBarBackground")]) {
            [subview removeFromSuperview];
        }

    }

Answer 6

我在iOS8中发现，这可以更好地将UISearchBar简化为文本字段。这将允许您摆脱背景颜色。

for (UIView *subView in self.searchBar.subviews) {
    for (UIView *secondLevelSubview in subView.subviews) {
        if (![secondLevelSubview isKindOfClass:NSClassFromString(@"UISearchBarTextField")]) {
            [secondLevelSubview removeFromSuperview];
        }
    }
}

Answer 7

尝试使用此行：

[[ [searchBar subviews] objectAtIndex:0] removeFromSuperview];
[[ [searchBar subviews] objectAtIndex:0] setBackgroundColor:[UIColor yellowColor]];

当然可以帮助你。