UITableView代理方法

#import "ViewController.h"

@interface ViewController ()<UITableViewDataSource,UITableViewDelegate>
@property (weak, nonatomic) IBOutlet UITableView *tableView;

@end

@implementation ViewController

NSString *ID=@"asda";
- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    [self.tableView registerClass:[UITableViewCell class ] forCellReuseIdentifier:ID];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}
#pragma mark-<UITableViewDataSource>
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return  50;
}

// Row display. Implementers should *always* try to reuse cells by setting each cell's reuseIdentifier and querying for available reusable cells with dequeueReusableCellWithIdentifier:
// Cell gets various attributes set automatically based on table (separators) and data source (accessory views, editing controls)

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:ID];
    cell.textLabel.text=[NSString stringWithFormat:@"TestData--%zd",indexPath.row];
    return cell;
}

#pragma mark-<UITableViewDelegate>
/**
 *  选中某一行的时候调用(点击某一行)
 *
 *  @param indexPath 被选中的那一行
 */
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSLog(@"selectRowAtIndexPath - %zd", indexPath.row);
}

/**
 *  取消选中某一行的时候调用
 *
 *  @param indexPath 被取消选中的那一行
 */
- (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSLog(@"deselectRowAtIndexPath - %zd", indexPath.row);
}

/**
 *  告诉tableView第indexPath行cell的高度
 *
 */
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (indexPath.row % 2 == 0) {
        return 100;
    }
    return 70;
}

- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
    return 44;
}

/**
 *  告诉tableView第section显示怎样的头部控件
 *
 */
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
    return [UIButton buttonWithType:UIButtonTypeContactAdd];
}

- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    NSLog(@"----%@", scrollView);
}



@end