Ios cellForRowAtIndexPath动画在滚动/重画时再次触发

“我的单元格”中的某些标签具有下面的动画外观代码

然而，一旦屏幕上的单元格多于房间，滚动之前插入的单元格就会被重新绘制，并再次触发其动画

如何防止这种行为

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"results"];

    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"results"];
    }
   ...
    // Animations
    nameLabel.alpha = 0;
    nameLabel.transform = CGAffineTransformMakeTranslation(-80, 0);
    priceLabel.alpha = 0;
    priceLabel.transform = CGAffineTransformMakeTranslation(+100, 0);
    cell.imageView.alpha = 0;
    cell.imageView.transform = CGAffineTransformMakeTranslation(-300, 0);

    [UIView animateWithDuration:1 delay:0 options:UIViewAnimationOptionCurveEaseOut animations:^{
        nameLabel.alpha = 1;
        nameLabel.transform = CGAffineTransformMakeTranslation(0, 0);
        priceLabel.alpha = 0.6;
        priceLabel.transform = CGAffineTransformMakeTranslation(0, 0);
        cell.imageView.alpha = 1;
        cell.imageView.transform = CGAffineTransformMakeTranslation(0, 0);
    }completion:^(BOOL Finished){}];

    return cell;
}

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也许您可以在collectionView:willDisplayCell:forItemAtIndexPath:中设置单元格的动画，当单元格出现时，将调用该动画，而不是CellForRowtIndexPath: