Ben*_*ard 87 uinavigationbar uitoolbar uinavigationcontroller ios ios7
我想完全透明UIToolbar和/或UINavigationBar.我已经尝试过为iOS 5之前和之后建议的各种咒语,但似乎没有任何工作.
如何在iOS 7中实现这一目标?
Gab*_*lla 301
UIToolbarself.toolbar.setBackgroundImage(UIImage(),
forToolbarPosition: .any,
barMetrics: .default)
self.toolbar.setShadowImage(UIImage(), forToolbarPosition: .any)
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UINavigationBarself.navigationBar.setBackgroundImage(UIImage(), for: .default)
self.navigationBar.shadowImage = UIImage()
self.navigationBar.isTranslucent = true
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UIToolbarself.toolbar.setBackgroundImage(UIImage(),
forToolbarPosition: UIBarPosition.Any,
barMetrics: UIBarMetrics.Default)
self.toolbar.setShadowImage(UIImage(),
forToolbarPosition: UIBarPosition.Any)
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UINavigationBarself.navigationBar.setBackgroundImage(UIImage(), forBarMetrics: UIBarMetrics.Default)
self.navigationBar.shadowImage = UIImage()
self.navigationBar.translucent = true
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UIToolbar[self.toolbar setBackgroundImage:[UIImage new]
forToolbarPosition:UIBarPositionAny
barMetrics:UIBarMetricsDefault];
[self.toolbar setShadowImage:[UIImage new]
forToolbarPosition:UIBarPositionAny];
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UINavigationBar[self.navigationBar setBackgroundImage:[UIImage new]
forBarMetrics:UIBarMetricsDefault];
self.navigationBar.shadowImage = [UIImage new];
self.navigationBar.translucent = YES;
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由于文档中讨论的行为,导航栏上的设置translucent可以YES解决问题UINavigationBar.我将在这里报告相关的片段:
如果将此属性设置为
YES具有不透明自定义背景图像的导航栏,则导航栏将对图像应用小于1.0的系统不透明度.

如果您想通过整个应用程序执行此操作,则应使用UIAppearance代理(iOS5 +):
UINavigationBar *navigationBarAppearance = [UINavigationBar appearance];
navigationBarAppearance.backgroundColor = [UIColor clearColor];
[navigationBarAppearance setBackgroundImage:[[UIImage alloc] init] forBarMetrics:UIBarMetricsDefault];
navigationBarAppearance.shadowImage = [[UIImage alloc] init];
文档:https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIAppearance_Protocol/Reference/Reference.html
文章:http://nshipster.com/uiappearance/
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