UISearchBarBackground Class

I am using the following piece of code to hide the background on a UISearchBar: [[searchView.subviews objectAtIndex:0] setHidden:YES]; Pretty simple, but I worry about hard coding a po开发者_如何学运维sition in a subview list. So I went looking for the UISearchBarBackground.h file and cannot find it. Does any know where the definition is hiding?

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Another way:

for (UIView* subview in searchControl.subviews) {
    if ([NSStringFromClass([subview class]) isEqualToString:@"UISearchBarBackground"]) {
        [subview removeFromSuperview];
    }
}

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To simply use in [subView isKindOfClass:[UISearchBarBackground class]] the following works just fine:

@interface UISearchBarBackground : NSObject { } @end

A more complete definition is available at github.

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For ios4 it didnt work, so I try this and it works

[[self.mySearchBar.subviews objectAtIndex:0] removeFromSuperview];

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You can use NSClassFromString() method this instead to avoid having to create a new class just for testing equallity

for (UIView *v in [self.searchbar subviews]) {
    if ([v isKindOfClass:NSClassFromString(@"UISearchBarBackground")]) {
        // whatever you want to do with the subview goes here...
    }
}