自定义Navigation Bar的Appearance的常用方法

Customizing the Bar Appearance

• backIndicatorImage Property
• backIndicatorTransitionMaskImage Property
• barStyle Property
• barTintColor Property
• shadowImage Property
• tintColor Property
• translucent Property
• - backgroundImageForBarMetrics:
• - setBackgroundImage:forBarMetrics:
• - backgroundImageForBarPosition:barMetrics:
• - setBackgroundImage:forBarPosition:barMetrics:
• - titleVerticalPositionAdjustmentForBarMetrics:
• - setTitleVerticalPositionAdjustment:forBarMetrics:
• titleTextAttributes Property

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