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// 代码地址: https://github.com/CoderMJLee/MJRefresh
// 代码地址: http://code4app.com/ios/%E5%BF%AB%E9%80%9F%E9%9B%86%E6%88%90%E4%B8%8B%E6%8B%89%E4%B8%8A%E6%8B%89%E5%88%B7%E6%96%B0/52326ce26803fabc46000000
#import <UIKit/UIKit.h>
#import <objc/message.h>
// 弱引用
#define MJWeakSelf __weak typeof(self) weakSelf = self;
// 日志输出
#ifdef DEBUG
#define MJRefreshLog(...) NSLog(__VA_ARGS__)
#else
#define MJRefreshLog(...)
#endif
// 过期提醒
#define MJRefreshDeprecated(instead) NS_DEPRECATED(2_0, 2_0, 2_0, 2_0, instead)
// 运行时objc_msgSend
#define MJRefreshMsgSend(...) ((void (*)(void *, SEL, UIView *))objc_msgSend)(__VA_ARGS__)
#define MJRefreshMsgTarget(target) (__bridge void *)(target)
// RGB颜色
#define MJRefreshColor(r, g, b) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:1.0]
// 文字颜色
#define MJRefreshLabelTextColor MJRefreshColor(90, 90, 90)
// 字体大小
#define MJRefreshLabelFont [UIFont boldSystemFontOfSize:14]
// 常量
UIKIT_EXTERN const CGFloat MJRefreshLabelLeftInset;
UIKIT_EXTERN const CGFloat MJRefreshHeaderHeight;
UIKIT_EXTERN const CGFloat MJRefreshFooterHeight;
UIKIT_EXTERN const CGFloat MJRefreshFastAnimationDuration;
UIKIT_EXTERN const CGFloat MJRefreshSlowAnimationDuration;
UIKIT_EXTERN NSString *const MJRefreshKeyPathContentOffset;
UIKIT_EXTERN NSString *const MJRefreshKeyPathContentSize;
UIKIT_EXTERN NSString *const MJRefreshKeyPathContentInset;
UIKIT_EXTERN NSString *const MJRefreshKeyPathPanState;
UIKIT_EXTERN NSString *const MJRefreshHeaderLastUpdatedTimeKey;
UIKIT_EXTERN NSString *const MJRefreshHeaderIdleText;
UIKIT_EXTERN NSString *const MJRefreshHeaderPullingText;
UIKIT_EXTERN NSString *const MJRefreshHeaderRefreshingText;
UIKIT_EXTERN NSString *const MJRefreshAutoFooterIdleText;
UIKIT_EXTERN NSString *const MJRefreshAutoFooterRefreshingText;
UIKIT_EXTERN NSString *const MJRefreshAutoFooterNoMoreDataText;
UIKIT_EXTERN NSString *const MJRefreshBackFooterIdleText;
UIKIT_EXTERN NSString *const MJRefreshBackFooterPullingText;
UIKIT_EXTERN NSString *const MJRefreshBackFooterRefreshingText;
UIKIT_EXTERN NSString *const MJRefreshBackFooterNoMoreDataText;
UIKIT_EXTERN NSString *const MJRefreshHeaderLastTimeText;
UIKIT_EXTERN NSString *const MJRefreshHeaderDateTodayText;
UIKIT_EXTERN NSString *const MJRefreshHeaderNoneLastDateText;
// 状态检查
#define MJRefreshCheckState \
MJRefreshState oldState = self.state; \
if (state == oldState) return; \
[super setState:state];