自定義UISearchBar

Question

我是Objective-C的新手，我試圖刪除UISearchBar的背景以使用我的一張圖片作爲textfield，但是一旦我將其刪除，它會在後臺顯示UISegmentedControl。

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

     if ([subview isKindOfClass:NSClassFromString(@"UISearchBarTextField")]) { 
      [(UITextField *)subview setBackground:[UIImage imageNamed:@"pg-14-search-field.png"]]; 
     } 
    } 

如何防止UISegmentedControl出現後，我刪除了UISearchBar背景是什麼？

Answer 1

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

     if ([subview isKindOfClass:NSClassFromString(@"UISearchBarTextField")]) 
     { 

     } 
    } 
}