如何在Swift的UI PickerView组件中显示图像？

您将需要为UIPickerViewDelegate协议实现更多的委托方法。特别是rowHeight委托方法和viewForRow委托方法。

就像是：

// MARK: UIPickerViewDataSourcefunc numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {    return 1}func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {    return 2} func pickerView(pickerView: UIPickerView, rowHeightForComponent component: Int) -> CGFloat {    return 60}// MARK: UIPickerViewDelegatefunc pickerView(pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusingView view: UIView!) -> UIView {    var myView = UIView(frame: CGRectMake(0, 0, pickerView.bounds.width - 30, 60))    var myImageView = UIImageView(frame: CGRectMake(0, 0, 50, 50))    var rowString = String()    switch row {    case 0:        rowString = “Washington”        myImageView.image = UIImage(named:"washington.jpg")    case 1:        rowString = “Beijing”        myImageView.image = UIImage(named:"beijing.jpg")    case 2:        default:        rowString = "Error: too many rows"        myImageView.image = nil    }    let myLabel = UILabel(frame: CGRectMake(60, 0, pickerView.bounds.width - 90, 60 ))    myLabel.font = UIFont(name:some font, size: 18)    myLabel.text = rowString    myView.addSubview(myLabel)    myView.addSubview(myImageView)    return myView}func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {   // do something with selected row}

请注意，标签布局等仅用于演示，需要进行调整，或者最好使用自动布局ect。