给TableView设置背景图片

UIImage *image = [UIImage imageNamed:@”1.jpg”];

UIImageView *imageView = [[UIImageView alloc] initWithFrame:[UIScreen mainScreen].bounds];

// 将图片视图加到视图上

[self addSubview:imageView];

imageView.userInteractionEnabled = YES;

self.myTabelView.alpha = 0.5;

// 将tableView加到图片视图上

[imageView addSubview:self.myTabelView];

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
// 在这个方法里面设置cell的透明度

cell.backgroundColor = [UIColor colorWithRed:123.0 / 255.0 green:23.0 / 255.0 blue:45 / 255.0 alpha:0.1];

return cell;

}