iOS开发-UITableView表格优化

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

@interface Dress : NSObject
 
@property (strong,nonatomic) NSString *dressName;
 
@property (strong,nonatomic) NSString *dressDetial;
 
@property (strong,nonatomic) NSString  *dressImage;
 
@end

@interface ViewController ()
{
    NSArray *imageArr;
    NSArray *dressArr;
    NSMutableArray *dressList;
}
@end

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    imageArr=[[NSArray alloc]initWithObjects:@"dress1.jpeg",@"dress2.jpg",@"dress3.jpg",nil];
    dressArr=[[NSArray alloc]initWithObjects:@"七匹狼",@"森马",@"杰克琼斯",@"美特斯邦威",@"以纯",@"真维斯",@"海南之家",nil];
    dressList=[NSMutableArray arrayWithCapacity:30];
    for (NSInteger i=0; i<30; i++) {
        Dress *dress=[[Dress alloc]init];
        NSInteger imageRandom=arc4random_uniform(3);
        NSInteger dressRandom=arc4random_uniform(7);
    
        NSInteger price=arc4random_uniform(1000)+100;
        
        dress.dressImage=imageArr[imageRandom];
        dress.dressName=dressArr[dressRandom];
        dress.dressDetial=[NSString stringWithFormat:@"促销价:%ld",(long)price];
        [dressList addObject:dress];
    }
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    return [dressList count];
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
    return 1;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    static NSString *flag=@"cacheCell";
    //生成唯一的标记
    UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:flag];
    if (cell==nil) {
        //设置需要显示详情的样式
        cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:flag];
    }
    Dress *dress=dressList[indexPath.row];
    
    UIImage *image=[UIImage imageNamed:dress.dressImage];
    [cell.imageView setImage:image];
    [cell.imageView setFrame:CGRectMake(0, 0, 80, 50)];
    [cell.textLabel setText:dress.dressName];
    //设置展示小箭头
    [cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator];
    //设置Tag
//    [cell setTag:indexPath.row];
    
    [cell.detailTextLabel setText:dress.dressDetial];
    
    NSLog(@"获取更新之后的行:%ld",indexPath.row);
    return cell;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    UIAlertView *alterView=[[UIAlertView alloc] initWithTitle:@"服装价格:" message:nil delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"修改", nil];
    [alterView setAlertViewStyle:UIAlertViewStylePlainTextInput];
    //选中的Cell
    UITableViewCell *cell=[tableView cellForRowAtIndexPath:indexPath];
    
    UITextField *textField=[alterView textFieldAtIndex:0];
    
    //设置修改的服装信息
    [textField setText:cell.detailTextLabel.text];
    
    [textField setTag:indexPath.row];
    [alterView  show];
}

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
    if (buttonIndex==1) {
        
        UITextField *textField=[alertView textFieldAtIndex:0];
        
        NSArray *selectedRow=[self.tableView indexPathsForSelectedRows];
        
        NSIndexPath *indexPath=selectedRow[0];
        
        Dress *dress=dressList[indexPath.row];
        
        dress.dressDetial=textField.text;
        
        
        NSLog(@"%@---%ld",textField.text,(long)indexPath.row);
        
        [self.tableView reloadRowsAtIndexPaths:selectedRow withRowAnimation:UITableViewRowAnimationRight];
    
    }
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
    return 50;
}