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Pods/MJRefresh/MJRefresh/UIScrollView+MJExtension.m

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+//  代码地址: https://github.com/CoderMJLee/MJRefresh
+//  UIScrollView+Extension.m
+//  MJRefresh
+//
+//  Created by MJ Lee on 14-5-28.
+//  Copyright (c) 2014年 小码哥. All rights reserved.
+//
+
+#import "UIScrollView+MJExtension.h"
+#import <objc/runtime.h>
+
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunguarded-availability-new"
+
+@implementation UIScrollView (MJExtension)
+
+static BOOL respondsToAdjustedContentInset_;
+
++ (void)load
+{
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        respondsToAdjustedContentInset_ = [self instancesRespondToSelector:@selector(adjustedContentInset)];
+    });
+}
+
+- (UIEdgeInsets)mj_inset
+{
+#ifdef __IPHONE_11_0
+    if (respondsToAdjustedContentInset_) {
+        return self.adjustedContentInset;
+    }
+#endif
+    return self.contentInset;
+}
+
+- (void)setMj_insetT:(CGFloat)mj_insetT
+{
+    UIEdgeInsets inset = self.contentInset;
+    inset.top = mj_insetT;
+#ifdef __IPHONE_11_0
+    if (respondsToAdjustedContentInset_) {
+        inset.top -= (self.adjustedContentInset.top - self.contentInset.top);
+    }
+#endif
+    self.contentInset = inset;
+}
+
+- (CGFloat)mj_insetT
+{
+    return self.mj_inset.top;
+}
+
+- (void)setMj_insetB:(CGFloat)mj_insetB
+{
+    UIEdgeInsets inset = self.contentInset;
+    inset.bottom = mj_insetB;
+#ifdef __IPHONE_11_0
+    if (respondsToAdjustedContentInset_) {
+        inset.bottom -= (self.adjustedContentInset.bottom - self.contentInset.bottom);
+    }
+#endif
+    self.contentInset = inset;
+}
+
+- (CGFloat)mj_insetB
+{
+    return self.mj_inset.bottom;
+}
+
+- (void)setMj_insetL:(CGFloat)mj_insetL
+{
+    UIEdgeInsets inset = self.contentInset;
+    inset.left = mj_insetL;
+#ifdef __IPHONE_11_0
+    if (respondsToAdjustedContentInset_) {
+        inset.left -= (self.adjustedContentInset.left - self.contentInset.left);
+    }
+#endif
+    self.contentInset = inset;
+}
+
+- (CGFloat)mj_insetL
+{
+    return self.mj_inset.left;
+}
+
+- (void)setMj_insetR:(CGFloat)mj_insetR
+{
+    UIEdgeInsets inset = self.contentInset;
+    inset.right = mj_insetR;
+#ifdef __IPHONE_11_0
+    if (respondsToAdjustedContentInset_) {
+        inset.right -= (self.adjustedContentInset.right - self.contentInset.right);
+    }
+#endif
+    self.contentInset = inset;
+}
+
+- (CGFloat)mj_insetR
+{
+    return self.mj_inset.right;
+}
+
+- (void)setMj_offsetX:(CGFloat)mj_offsetX
+{
+    CGPoint offset = self.contentOffset;
+    offset.x = mj_offsetX;
+    self.contentOffset = offset;
+}
+
+- (CGFloat)mj_offsetX
+{
+    return self.contentOffset.x;
+}
+
+- (void)setMj_offsetY:(CGFloat)mj_offsetY
+{
+    CGPoint offset = self.contentOffset;
+    offset.y = mj_offsetY;
+    self.contentOffset = offset;
+}
+
+- (CGFloat)mj_offsetY
+{
+    return self.contentOffset.y;
+}
+
+- (void)setMj_contentW:(CGFloat)mj_contentW
+{
+    CGSize size = self.contentSize;
+    size.width = mj_contentW;
+    self.contentSize = size;
+}
+
+- (CGFloat)mj_contentW
+{
+    return self.contentSize.width;
+}
+
+- (void)setMj_contentH:(CGFloat)mj_contentH
+{
+    CGSize size = self.contentSize;
+    size.height = mj_contentH;
+    self.contentSize = size;
+}
+
+- (CGFloat)mj_contentH
+{
+    return self.contentSize.height;
+}
+@end
+#pragma clang diagnostic pop