UIPickerView无法正确显示图像

Question

我只在图像上实现自定义选取器视图。问题是，图像重叠在对方喜欢的是：

这是代码在选择器视图配置图片：

func pickerView(pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusingView view: UIView!) -> UIView { 
    let chosenImage: UIImageView = UIImageView(image: UIImage(named: iconArray[row])) 
    NSLog("choosen image \(iconArray[row])") 
    let workaroundImageView: UIImageView = UIImageView(frame: chosenImage.frame) 
    workaroundImageView.backgroundColor = UIColor(patternImage: chosenImage.image!) 
    return workaroundImageView 
} 

我缺少什么？有什么建议么？

Answer 1

在UIPickerView的委托中使用rowHeightForComponent。

pickerView:rowHeightForComponent: 

为组件给出所需的行高度。

func pickerView(pickerView: UIPickerView!, rowHeightForComponent component: Int) -> CGFloat