//
//  CustomTableView.m
//  HD wallpaper


#import "CustomTableView.h"

@interface CustomTableView () <UITableViewDataSource, UITableViewDelegate>

@property (nonatomic, strong) UIView *loadMoreFooterView;
@property (nonatomic, assign) BOOL isLoadingMore;

@end

@implementation CustomTableView

- (instancetype)initWithFrame:(CGRect)frame style:(UITableViewStyle)style {
    self = [super initWithFrame:frame style:style];
    if (self) {
        [self commonInit];
    }
    return self;
}

- (void)awakeFromNib {
    [super awakeFromNib];
    [self commonInit];
}

- (void)commonInit {
    self.dataSource = self;
    self.delegate = self;

    // 添加刷新控制
    self.refreshControl = [[UIRefreshControl alloc] init];
    [self.refreshControl addTarget:self action:@selector(refreshTable) forControlEvents:UIControlEventValueChanged];
    [self addSubview:self.refreshControl];

    // 添加加载更多视图
    self.loadMoreFooterView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.bounds.size.width, 44)];
    UIActivityIndicatorView *activityIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleMedium];
    activityIndicator.center = self.loadMoreFooterView.center;
    [activityIndicator startAnimating];
    [self.loadMoreFooterView addSubview:activityIndicator];
    self.tableFooterView = self.loadMoreFooterView;
    self.isLoadingMore = NO;
}

- (void)refreshTable {
    if (self.onRefresh) {
        self.onRefresh();
    }
}

- (void)endRefreshing {
    [self.refreshControl endRefreshing];
}

- (void)endLoadingMore {
    self.isLoadingMore = NO;
    self.tableFooterView.hidden = YES;
}

#pragma mark - UITableViewDataSource & UITableViewDelegate

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    // 你需要实现的数据源方法
    return 0;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    // 你需要实现的数据源方法
    return [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"Cell"];
}

- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
    if (scrollView.contentOffset.y + scrollView.frame.size.height > scrollView.contentSize.height - 100) {
        if (!self.isLoadingMore && self.onLoadMore) {
            self.isLoadingMore = YES;
            self.tableFooterView.hidden = NO;
            self.onLoadMore();
        }
    }
}

@end


//#import "CustomTableView.h"
//
//@interface ViewController ()
//
//@property (nonatomic, strong) CustomTableView *tableView;
//@property (nonatomic, strong) NSMutableArray *data;
//
//@end
//
//@implementation ViewController
//
//- (void)viewDidLoad {
//    [super viewDidLoad];
//
//    self.data = [NSMutableArray array];
//    [self loadData];
//
//    self.tableView = [[CustomTableView alloc] initWithFrame:self.view.bounds style:UITableViewStylePlain];
//    [self.view addSubview:self.tableView];
//
//    __weak typeof(self) weakSelf = self;
//    self.tableView.onRefresh = ^{
//        [weakSelf refreshData];
//    };
//    self.tableView.onLoadMore = ^{
//        [weakSelf loadMoreData];
//    };
//}
//
//- (void)loadData {
//    // 加载数据
//    for (int i = 0; i < 20; i++) {
//        [self.data addObject:[NSString stringWithFormat:@"Item %d", i]];
//    }
//    [self.tableView reloadData];
//}
//
//- (void)refreshData {
//    // 模拟刷新
//    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
//        [self.data removeAllObjects];
//        [self loadData];
//        [self.tableView endRefreshing];
//    });
//}
//
//- (void)loadMoreData {
//    // 模拟加载更多
//    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
//        NSInteger currentCount = self.data.count;
//        for (int i = 0; i < 20; i++) {
//            [self.data addObject:[NSString stringWithFormat:@"Item %ld", currentCount + i]];
//        }
//        [self.tableView reloadData];
//        [self.tableView endLoadingMore];
//    });
//}
//
//@end