self.navigationController!.navigationBar.setBackgroundImage(image, for: .default)
self.navigationController!.navigationBar.titleTextAttributes= [NSForegroundColorAttributeName:UIColor.white,NSFontAttributeName:UIFont.systemFont(ofSize:20)]
self.navigationController!.navigationBar.setBackgroundImage(image, for: .default)
self.navigationController!.navigationBar.titleTextAttributes= [NSForegroundColorAttributeName:UIColor.white,NSFontAttributeName:UIFont.systemFont(ofSize:20)]
本文标题：swift设置导航栏背景颜色和文字的属性
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