UIPickerView無法正確顯示圖像

Question

我只在圖像上實現自定義選取器視圖。問題是，圖像重疊在對方喜歡的是：

這是代碼在選擇器視圖配置圖片：

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 
} 

我缺少什麼？有什麼建議麼？

Answer 1

在UIPickerView的委託中使用rowHeightForComponent。

pickerView:rowHeightForComponent: 

爲組件給出所需的行高度。

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