Initial commit

2017-08-15 16:59:01 +08:00
commit bdc83e07ef
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+//
+//  UIScrollView+JHRefresh.m
+//  JHRefresh
+//
+//  Created by Jiahai on 14-9-15.
+//  Copyright (c) 2014年 Jiahai. All rights reserved.
+//
+
+#import "UIScrollView+JHRefresh.h"
+#import "JHRefreshHeaderView.h"
+#import "JHRefreshFooterView.h"
+#import "AnimationView/JHRefreshCommonAniView.h"
+#import "AnimationView/JHRefreshAmazingAniView.h"
+#import "objc/runtime.h"
+
+@interface UIScrollView()
+@property (nonatomic, weak) JHRefreshHeaderView *header;
+@property (nonatomic, weak) JHRefreshFooterView *footer;
+@end
+
+@implementation UIScrollView (JHRefresh)
+
+#pragma mark - 关联属性
+static char JHRefreshHeaderViewKey;
+static char JHRefreshFooterViewKey;
+
+- (void)setHeader:(JHRefreshHeaderView *)header {
+    [self willChangeValueForKey:@"JHRefreshHeaderViewKey"];
+    objc_setAssociatedObject(self, &JHRefreshHeaderViewKey,
+                             header,
+                             OBJC_ASSOCIATION_ASSIGN);
+    [self didChangeValueForKey:@"JHRefreshHeaderViewKey"];
+}
+
+- (JHRefreshHeaderView *)header {
+    return objc_getAssociatedObject(self, &JHRefreshHeaderViewKey);
+}
+
+- (void)setFooter:(JHRefreshFooterView *)footer {
+    [self willChangeValueForKey:@"JHRefreshFooterViewKey"];
+    objc_setAssociatedObject(self, &JHRefreshFooterViewKey,
+                             footer,
+                             OBJC_ASSOCIATION_ASSIGN);
+    [self didChangeValueForKey:@"JHRefreshFooterViewKey"];
+}
+
+- (JHRefreshFooterView *)footer {
+    return objc_getAssociatedObject(self, &JHRefreshFooterViewKey);
+}
+
+#pragma mark -
+- (void)addRefreshHeaderViewWithAniViewClass:(Class)aniViewClass beginRefresh:(void (^)())beginRefresh
+{
+    assert([aniViewClass isSubclassOfClass:[JHRefreshAniBaseView class]]);
+    
+    if(!self.header)
+    {
+        JHRefreshHeaderView *headerView = [JHRefreshHeaderView createView];
+        headerView.beginRefreshingBlock = beginRefresh;
+        [self addSubview:headerView];
+        self.header = headerView;
+        headerView.aniView = [[aniViewClass alloc] init];
+    }
+}
+
+- (void)addRefreshFooterViewWithAniViewClass:(Class)aniViewClass beginRefresh:(void (^)())beginRefresh
+{
+    assert([aniViewClass isSubclassOfClass:[JHRefreshAniBaseView class]]);
+    
+    if(!self.footer)
+    {
+        JHRefreshFooterView *footerView = [JHRefreshFooterView createView];
+        footerView.beginRefreshingBlock = beginRefresh;
+        [self addSubview:footerView];
+        self.footer = footerView;
+        footerView.aniView = [[aniViewClass alloc] init];
+    }
+}
+
+- (void)headerStartRefresh
+{
+    self.header.state = JHRefreshStatePulling;
+    self.contentOffset = CGPointMake(self.contentOffset.x, -JHRefreshViewHeight);
+}
+
+- (void)headerEndRefreshingWithResult:(JHRefreshResult)result
+{
+    [self.header endRefreshingWithResult:result];
+}
+
+- (void)footerEndRefreshing
+{
+    [self.footer endRefreshingWithResult:JHRefreshResultNone];
+}
+@end