ios开发之--UITableView中的visibleCells的用法

#import "ViewController.h"

@interface ViewController ()<UITableViewDelegate,UITableViewDataSource>
@property(nonatomic,strong)UITableView *myTableV;
@property(nonatomic,strong)NSArray *contentAry;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    self.contentAry = [NSArray array];
    [self creatUI];
}
- (IBAction)leftAction:(id)sender {
    self.contentAry = self.myTableV.visibleCells;
    NSLog(@"----%@",self.contentAry);
    
    UIButton *button = (UIButton*)sender;
    button.selected = !button.selected;
    CGAffineTransform transform;
    double duration = 0.1;
    
    if (button.tag == 1) {
        transform = CGAffineTransformMakeTranslation(-[UIScreen mainScreen].bounds.size.width, 0);
    }else if (button.tag == 2)
    {
        for (UITableViewCell *cell in self.contentAry) {
            [UIView animateWithDuration:duration delay:0 options:0 animations:^{
                cell.transform = CGAffineTransformIdentity;
            } completion:^(BOOL finished) {
                
            }];
            duration += 0.1;
        }
        return;
    }else
    {
        transform = CGAffineTransformMakeTranslation([UIScreen mainScreen].bounds.size.width, 0);
    }
    
    for (UITableViewCell *cell in self.contentAry) {
        [UIView animateWithDuration:duration delay:0 options:0 animations:^{
            cell.transform = transform;
        } completion:^(BOOL finished) {
            
        }];
        duration += 0.1;
    }
    
}

-(void)creatUI
{
    self.myTableV = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.height - 100) style:UITableViewStylePlain];
    self.myTableV.delegate = self;
    self.myTableV.dataSource = self;
    self.myTableV.tableFooterView = [[UIView alloc]init];
    [self.view addSubview:self.myTableV];
}

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return 5;
}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *celliden = @"CELLS";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:celliden];
    if (!cell) {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:celliden];
    }
    cell.textLabel.text = [NSString stringWithFormat:@"%ld",(long)indexPath.row];
    cell.backgroundColor = [[UIColor blackColor]colorWithAlphaComponent:0.6];
    return cell;
}