UISearchBar：更改输入字段的背景颜色

问题描述

我正在尝试更改UISearchBar输入字段的背景颜色。这是您输入要搜索的文本的圆角视图，默认颜色为白色。我想将其更改为灰色

I'm trying to change the background color of input field of UISearchBar.It's the rounded view where you input text to search, the default color is white. I would like to change it to gray

我试过：

for (UIView *subView in searchBar.subviews) {
    if ([subView isKindOfClass:NSClassFromString(@"UITextField")]) {
        UITextField *textField = (UITextField *)subView;
        [textField setBackgroundColor:[UIColor grayColor]];
    }

但它不起作用：（

我还试图将图像视图插入到TextField中，但看起来圆角视图与TextField是分开的。那么，任何线索？

I also tried to insert an image view to TextField but it seems the rounded view is separate from TextField. So, any clues?

推荐答案

=）

for (UIView *subView in _searchBar.subviews) {
    for(id field in subView.subviews){
        if ([field isKindOfClass:[UITextField class]]) {
            UITextField *textField = (UITextField *)field;
            [textField setBackgroundColor:[UIColor grayColor]];
        }
    }
}

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