IOS 根据屏幕高度设置tableview中图片元素的大小

尝试该方法无法实现：

cell.bankbgImageView.contentMode = UIViewContentModeCenter; cell.bankbgImageView.frame = CGRectMake(0, 0, 50, 50);

直接在tableview中修改cell 元素的大小是无法实现的，只有通过下面的做法调整：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *cellid = @"BankCradCell"; BankCradCell * cell = [tableView dequeueReusableCellWithIdentifier:cellid]; if (!cell) { cell = [[[NSBundle mainBundle] loadNibNamed:@"BankCradCell" owner:self options:nil]firstObject]; } //imagview 赋值 cell.bankbgImageView.image = [UIImage imageNamed:@"bank_ny"]; //根据屏幕高度调整图片大小 CGFloat cellHeight = 100*__kRatio; //调整大小 CGSize itemSize = CGSizeMake(cellHeight*3.25, cellHeight); UIGraphicsBeginImageContextWithOptions(itemSize, NO, UIScreen.mainScreen.scale); CGRect imageRect = CGRectMake(0.0, 0.0, itemSize.width, itemSize.height); [cell.bankbgImageView.image drawInRect:imageRect]; cell.bankbgImageView.image = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return cell； }

赶紧试试吧!