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SweetParty/常用工具/刷新封装/UIScrollView+MJRefreshEX.h

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+//
+//  UIScrollView+MJRefreshEX.h
+//  MJRefreshEX
+//
+//  Created by Destiny on 2018/5/16.
+//  Copyright © 2018年 Destiny. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface UIScrollView (MJRefreshEX)
+
+/**
+ 下拉刷新
+
+ @param beginRefresh 是否自动刷新
+ @param animation 是否需要动画
+ @param refreshBlock 刷新回调
+ */
+- (void)addHeaderWithHeaderWithBeginRefresh:(BOOL)beginRefresh animation:(BOOL)animation refreshBlock:(void(^)(NSInteger pageIndex))refreshBlock;
+
+
+/**
+ 上啦加载
+
+ @param automaticallyRefresh 是否自动加载
+ @param loadMoreBlock 加载回调
+ */
+- (void)addFooterWithWithHeaderWithAutomaticallyRefresh:(BOOL)automaticallyRefresh loadMoreBlock:(void(^)(NSInteger pageIndex))loadMoreBlock;
+
+
+/**
+ 普通请求结束刷新
+ */
+- (void)endFooterRefresh;
+
+
+/**
+ 没有数据结束刷新
+ */
+- (void)endFooterNoMoreData;
+
+@end

SweetParty/常用工具/刷新封装/UIScrollView+MJRefreshEX.m

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+//
+//  UIScrollView+MJRefreshEX.m
+//  MJRefreshEX
+//
+//  Created by Destiny on 2018/5/16.
+//  Copyright © 2018年 Destiny. All rights reserved.
+//
+
+#import "UIScrollView+MJRefreshEX.h"
+#import "MJRefresh.h"
+#import <objc/runtime.h>
+
+typedef void(^RefreshBlock)(NSInteger pageIndex);
+typedef void(^LoadMoreBlock)(NSInteger pageIndex);
+
+@interface UIScrollView()
+
+/**页码*/
+@property (assign, nonatomic) NSInteger pageIndex;
+/**下拉时候触发的block*/
+@property (nonatomic, copy) RefreshBlock refreshBlock;
+/**上拉时候触发的block*/
+@property (nonatomic, copy) LoadMoreBlock loadMoreBlock;
+
+@end
+
+@implementation UIScrollView (MJRefreshEX)
+
+- (void)addHeaderWithHeaderWithBeginRefresh:(BOOL)beginRefresh animation:(BOOL)animation refreshBlock:(void(^)(NSInteger pageIndex))refreshBlock{
+
+    __weak typeof(self) weakSelf = self;
+    self.refreshBlock = refreshBlock;
+    
+    MJRefreshNormalHeader * header = [MJRefreshNormalHeader headerWithRefreshingBlock:^{
+        [weakSelf resetPageNum];
+    
+        if (weakSelf.refreshBlock) {
+            weakSelf.refreshBlock(weakSelf.pageIndex);
+        }
+        [weakSelf endHeaderRefresh];
+    }];
+    
+    if (beginRefresh && animation) {
+        //有动画的刷新
+        [self beginHeaderRefresh];
+    }else if (beginRefresh && !animation){
+        //刷新，但是没有动画
+        [self.mj_header executeRefreshingCallback];
+    }
+    
+    header.mj_h = 70.0;
+    self.mj_header = header;
+}
+
+- (void)addFooterWithWithHeaderWithAutomaticallyRefresh:(BOOL)automaticallyRefresh loadMoreBlock:(void(^)(NSInteger pageIndex))loadMoreBlock{
+    
+    self.loadMoreBlock = loadMoreBlock;
+    
+    if (automaticallyRefresh) {
+        MJRefreshAutoNormalFooter * footer = [MJRefreshAutoNormalFooter footerWithRefreshingBlock:^{
+             self.pageIndex += 1;
+            if (self.loadMoreBlock) {
+                self.loadMoreBlock(self.pageIndex);
+            }
+//            [self endFooterRefresh]
+        }];
+        
+        footer.automaticallyRefresh = automaticallyRefresh;
+        
+        footer.stateLabel.font = [UIFont systemFontOfSize:13.0];
+        footer.stateLabel.textColor = [UIColor colorWithWhite:0.400 alpha:1.000];
+        [footer setTitle:@"加载中…" forState:MJRefreshStateRefreshing];
+        [footer setTitle:@"~~这是我的底线啦~~" forState:MJRefreshStateNoMoreData];
+        
+        self.mj_footer = footer;
+    }
+    else{
+        MJRefreshBackNormalFooter * footer = [MJRefreshBackNormalFooter footerWithRefreshingBlock:^{
+             self.pageIndex += 1;
+            if (self.loadMoreBlock) {
+                self.loadMoreBlock(self.pageIndex);
+            }
+//            [self endFooterRefresh]
+        }];
+        
+        footer.stateLabel.font = [UIFont systemFontOfSize:13.0];
+        footer.stateLabel.textColor = [UIColor colorWithWhite:0.400 alpha:1.000];
+        [footer setTitle:@"加载中…" forState:MJRefreshStateRefreshing];
+        [footer setTitle:@"~~这是我的底线啦~~" forState:MJRefreshStateNoMoreData];
+        
+        self.mj_footer = footer;
+    }
+   
+}
+
+-(void)beginHeaderRefresh {
+    
+    [self resetPageNum];
+    [self.mj_header beginRefreshing];
+}
+
+- (void)resetPageNum {
+    self.pageIndex = 1;
+}
+
+- (void)resetNoMoreData {
+    
+    [self.mj_footer resetNoMoreData];
+}
+
+-(void)endHeaderRefresh {
+    
+    [self.mj_header endRefreshing];
+    [self resetNoMoreData];
+}
+
+-(void)endFooterRefresh {
+    [self.mj_footer endRefreshing];
+}
+
+- (void)endFooterNoMoreData
+{
+    dispatch_async(dispatch_get_main_queue(), ^{
+        [self.mj_footer endRefreshingWithNoMoreData];
+    });
+}
+
+
+static void *pagaIndexKey = &pagaIndexKey;
+- (void)setPageIndex:(NSInteger)pageIndex{
+    objc_setAssociatedObject(self, &pagaIndexKey, @(pageIndex), OBJC_ASSOCIATION_ASSIGN);
+}
+
+- (NSInteger)pageIndex
+{
+    return [objc_getAssociatedObject(self, &pagaIndexKey) integerValue];
+}
+
+static void *RefreshBlockKey = &RefreshBlockKey;
+- (void)setRefreshBlock:(void (^)(void))RefreshBlock{
+    objc_setAssociatedObject(self, &RefreshBlockKey, RefreshBlock, OBJC_ASSOCIATION_COPY);
+}
+
+- (RefreshBlock)refreshBlock
+{
+    return objc_getAssociatedObject(self, &RefreshBlockKey);
+}
+
+static void *LoadMoreBlockKey = &LoadMoreBlockKey;
+- (void)setLoadMoreBlock:(LoadMoreBlock)loadMoreBlock{
+    objc_setAssociatedObject(self, &LoadMoreBlockKey, loadMoreBlock, OBJC_ASSOCIATION_COPY);
+}
+
+- (LoadMoreBlock)loadMoreBlock
+{
+    return objc_getAssociatedObject(self, &LoadMoreBlockKey);
+}
+
+@end