更改枚舉類型值

Question

你好我正在使用一個庫。 它有一些嵌入在枚舉中的選項，但我無法弄清楚如何配置它們。 該庫名為PPRevealSideViewController 。 它有一個屬性：

@property (nonatomic, assign) PPRevealSideOptions options;

這是枚舉代碼：

enum {
    PPRevealSideOptionsNone = 0,
    PPRevealSideOptionsShowShadows = 2 << 1, /// Disable or enable the shadows. Enabled by default
    PPRevealSideOptionsBounceAnimations = 1 << 2, /// Decide if the animations are boucing or not. By default, they are
    PPRevealSideOptionsCloseCompletlyBeforeOpeningNewDirection = 1 << 3, /// Decide if we close completely the old direction, for the new one or not. Set to YES by default
    PPRevealSideOptionsKeepOffsetOnRotation = 1 << 4, /// Keep the same offset when rotating. By default, set to no
    PPRevealSideOptionsResizeSideView = 1 << 5, /// Resize the side view. If set to yes, this disabled the bouncing stuff since the view behind is not large enough to show bouncing correctly. Set to NO by default
};
typedef NSUInteger PPRevealSideOptions;

非常感謝你！

Answer 1

obj.options = opt0 | opt1 | ... etc

例如： obj.options = PPRevealSideOptionsBounceAnimations | PPRevealSideOptionsResizeSideView; obj.options = PPRevealSideOptionsBounceAnimations | PPRevealSideOptionsResizeSideView;

Answer 2

我為此目的制作了這個控制器的文檔。 好吧，我的不好，這個方法不是很突出，但確實存在：您可以使用- (void) resetOption:(PPRevealSideOptions)option; （后面是低級別： _options ^= option; ）或者使用- (void) setOption:(PPRevealSideOptions)option 。 甚至有一個setOptionS方法;）