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Pull-up refresh control

Last Updated: Mar 04, 2022

AUDragLoadingView and Aupullloadingview provide the loading style when the page is pulled up or down.

The following controls are not customized for businesses and must be switched to the AUPullLoadingView or AUDragLoadingView control:

CommonUI: ODRefreshControl, APCircleRefreshControl, EGORefreshTableHeaderView, and APNextPagePullView

Sample image

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API description

  • AUDragLoadingView.h

      //
      //  AUDragLoadingView.h
      //  AntUI
      //
    
      #import <AntUI/AntUI.h>
    
      @interface AUDragLoadingView : AUPullLoadingView
    
      @end
  • AUPullLoadingView.h

    For more information, see Pull loading view control.

Sample code

//
//  APRefreshTableViewController.m
//  UIDemo
//

#import "APRefreshTableViewController.h"
@interface APRefreshTableViewController ()
{
    BOOL _headerReloading;
    BOOL _footerReloading;
    BOOL _isHeader;
}
@property(nonatomic,strong)AUPullLoadingView *refreshHeaderView;
@property(nonatomic,strong)AUDragLoadingView *refreshFooterView;
@property(nonatomic, strong) UITableView *tableView;
@property(nonatomic, strong) NSMutableArray* listArray;


@end

@implementation APRefreshTableViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
        NSArray *array = @[@"0",
                           @"1",
                           @"2",
                           @"3",
                           @"4",
                           @"5",
                           @"6",
                           @"7",
                           @"8",
                           @"9",
                           @"10",
                           @"11",
                           @"12",
                           @"13",
                           @"14",
                           @"15",
                           @"16",
                           @"17",
                           @"18",
                           @"19"];
        self.listArray = [NSMutableArray arrayWithArray:array];
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    self.edgesForExtendedLayout = UIRectEdgeNone;
//    self.navigationItem.rightBarButtonItem = [APUtil getBarButtonWithTitle:RightBarButtonTitle target:self];

    self.tableView = [[UITableView alloc]initWithFrame:self.view.bounds style:UITableViewStylePlain];
    self.tableView.dataSource = self;
    self.tableView.delegate = self;
    self.tableView.backgroundColor = [UIColor colorWithRGB:0xf5f5f9];
    self.tableView.separatorColor = [UIColor colorWithRGB:0xdddddd];
    [self.view addSubview:self.tableView];

    if (_refreshHeaderView == nil) {

        AUPullLoadingView *view = [[AUPullLoadingView alloc] initWithFrame:CGRectMake(0.0f, 0.0f - self.tableView.bounds.size.height, self.view.frame.size.width, self.tableView.bounds.size.height)];
        view.delegate = self;
        [view ShowLastPullDate:YES];
        [view ShowStatusLabel:NO];

        [self.tableView addSubview:view];
        _refreshHeaderView = view;
    }
    [_refreshHeaderView refreshLastUpdatedDate];

    if (_refreshFooterView == nil) {
        AUDragLoadingView *view = [[AUDragLoadingView alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, 48)];
        view.delegate = self;
        [view setPullUp:@"release to load more"];
        [view setRelease:@"Relax"];
        self.tableView.tableFooterView = view;
        _refreshFooterView = view;
    }

    _isHeader = YES;
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

#pragma tableview datasource
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return _listArray.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"RefreshCell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (nil == cell)
    {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
                                      reuseIdentifier:CellIdentifier];
    }
    cell.textLabel.text = _listArray[indexPath.row];
    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;

    return cell;
}

#pragma mark -
#pragma mark Data Source Loading / Reloading Methods

- (void)reloadHeaderTableViewDataSource{

    //  should be calling your tableviews data source model to reload
    //  put here just for demo
    NSInteger first = [_listArray[0] integerValue] - 1;
    [_listArray insertObject:[NSString stringWithFormat:@"%li",(long)first] atIndex:0];

    _headerReloading = YES;
}

- (void)doneLoadingHeaderTableViewData{

    //  model should call this when its done loading
    _headerReloading = NO;
    [_refreshHeaderView egoRefreshScrollViewDataSourceDidFinishedLoading:self.tableView];
    [self.tableView reloadData];

}

- (void)reloadFooterTableViewDataSource{

    //  should be calling your tableviews data source model to reload
    //  put here just for demo
    NSInteger count = [_listArray count];
    NSInteger last = [_listArray[count-1] integerValue] + 1;
    [_listArray addObject:[NSString stringWithFormat:@"%li",(long)last]];

    _footerReloading = YES;
}

- (void)doneLoadingFooterTableViewData{

    //  model should call this when its done loading
    _footerReloading = NO;
    [_refreshFooterView egoRefreshScrollViewDataSourceDidFinishedLoading:self.tableView];
    [self.tableView reloadData];

}

#pragma mark -
#pragma mark UIScrollViewDelegate Methods

- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    if (scrollView.contentInset.top + scrollView.contentOffset.y < 0) {
        _isHeader = YES;
    } else {
        _isHeader = NO;
    }

    if (_isHeader) {
        [_refreshHeaderView egoRefreshScrollViewDidScroll:scrollView];
    } else {
        [_refreshFooterView egoRefreshScrollViewDidScroll:scrollView];
    }
}

- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
{
    if (_isHeader) {
        [_refreshHeaderView egoRefreshScrollViewDidEndDragging:scrollView];
    } else {
        [_refreshFooterView egoRefreshScrollViewDidEndDragging:scrollView];
    }
}

#pragma mark -
#pragma mark EGORefreshTableHeaderDelegate Methods

- (void)egoRefreshTableHeaderDidTriggerRefresh:(AUPullLoadingView*)view
{
    if (_isHeader) {
        [self reloadHeaderTableViewDataSource];
        [self performSelector:@selector(doneLoadingHeaderTableViewData) withObject:nil afterDelay:2.0];
    } else {
        [self reloadFooterTableViewDataSource];
        [self performSelector:@selector(doneLoadingFooterTableViewData) withObject:nil afterDelay:2.0];
    }

}

- (BOOL)egoRefreshTableHeaderDataSourceIsLoading:(AUPullLoadingView*)view
{
    if (_isHeader) {
        return _headerReloading;
    } else {
        return _footerReloading; // should return if data source model is reloading
    }

}

- (NSDate*)egoRefreshTableHeaderDataSourceLastUpdated:(AUPullLoadingView*)view{

    return [NSDate date]; // should return date data source was last changed

}

@end