# XGPullup-and-down-the-refresh

**Repository Path**: xiao66guo/XGPullup-and-down-the-refresh

## Basic Information

- **Project Name**: XGPullup-and-down-the-refresh
- **Description**: 完全自定义的上下拉刷新整体源码，只需导入一个头文件即可使用
- **Primary Language**: Objective-C
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 9
- **Forks**: 0
- **Created**: 2016-09-30
- **Last Updated**: 2025-07-28

## Categories & Tags

**Categories**: ios-modules

**Tags**: None

## README

#XGPullup-and-down-the-refresh
项目简介：

1️⃣用完全自定的方式来实现上拉加载更多、下拉刷新的功能；

2️⃣对上拉加载更多和下拉刷新功能已各自单独分离，可以单独使用；

3️⃣用Runtime运行时机制来监听刷新的状态；

4️⃣对细节的处理：用一个没有大小的FootView来把刷新控件的后面的分割线去掉；

5️⃣利用KVO来监听ScrollView滚动的位置来改变刷新控件的一个状态；

为ScollView添加的分类的相关代码：

```
//
//  UIScrollView+XGRefresh.m
//  XGRefresh
//
//  Created by 小果 on 16/9/28.
//  Copyright © 2016年 小果. All rights reserved.
//

#import "UIScrollView+XGRefresh.h"
#import <objc/runtime.h>

static const char *upRefreshKey = "upRefreshKey";
static const char *downRefreshKey = "downRefreshKey";

@implementation UIScrollView (XGRefresh)

-(void)setUpRefreshView:(XGPullupRefreshView *)upRefreshView{
    objc_setAssociatedObject(self, upRefreshKey, upRefreshView, 1);
}

-(XGPullupRefreshView *)upRefreshView{
    XGPullupRefreshView *upRefreshView = objc_getAssociatedObject(self, upRefreshKey);
    if (nil == upRefreshView) {
        upRefreshView = [[XGPullupRefreshView alloc] init];
        [self addSubview:upRefreshView];
        self.upRefreshView = upRefreshView;
    }
    return upRefreshView;
}

-(void)setDownRefreshView:(XGPullDownRefreshView *)downRefreshView{
    objc_setAssociatedObject(self, downRefreshKey, downRefreshView, 1);
}

-(XGPullDownRefreshView *)downRefreshView{
    XGPullDownRefreshView *downRefreshView = objc_getAssociatedObject(self, downRefreshKey);
    if (nil == downRefreshView) {
        downRefreshView = [[XGPullDownRefreshView alloc] init];
        [self addSubview:downRefreshView];
        self.downRefreshView = downRefreshView;
    }
    return downRefreshView;
}
@end

```