UIPickerView 连接
我的 UIPickerView 连接有问题。 我的 viewController 类如下所示：
@interface MyViewController: UIViewController <UITextFieldDelegate, UIPickerViewDataSource, UIPickerViewDelegate>
{
IBOutlet UIPickerView *pickerView;/this is what it says in all tutorials
//other textfields
}
@property..of textfields, label, nsstring
@end
在界面生成器中，当我按住 Ctrl 键并单击文件所有者时，我的 pickerview 出现在 Outlet 中，而不是引用的 Outlet 中（与教程中显示的内容相反）。 我如何建立连接？我将它连接到什么？ 我希望在单击按钮时显示 PickerView，该按钮的操作也已在上面的类中注册。
I'm having a problem with the connections of UIPickerView.
My viewController class looks like this:
@interface MyViewController: UIViewController <UITextFieldDelegate, UIPickerViewDataSource, UIPickerViewDelegate>
{
IBOutlet UIPickerView *pickerView;/this is what it says in all tutorials
//other textfields
}
@property..of textfields, label, nsstring
@end
In the interface builder, when i ctrl+click on the file's owner, my pickerview appears in Outlets and NOT in referencing outlets(against what is shown in tutorial).
How do I make the connections? and what do I connect it to?
I want the PickerView to be displayed on click of a button whose action is also registered in the above class.
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我想你可能只是有一个误会。我创建了一个与您所描述的类似的类：
@interface MyViewController : UIViewController {
UIPickerView *pickerView;
@property
(非原子，保留) IBOutlet UIPickerView *pickerView;
然后我打开了xib。我右键单击文件的所有者（如果没有两键鼠标，则单击 cmd），这将显示 MyViewController 上所有 Outlet 的列表。我发现这比大多数教程建议您按 Ctrl 键单击要容易得多。然后我单击并从 pickerView 旁边的圆圈向下拖动到 pickerView。放开鼠标按钮，它就可以正常连接了。
I think you might just have a misunderstanding. I created a class similar to what you described:
@interface MyViewController : UIViewController {
UIPickerView *pickerView;
}
@property (nonatomic, retain) IBOutlet UIPickerView *pickerView;
Then I opened up the xib. I right-clicked on the File's Owner (or cmd-click if you don't have a two button mouse), which brought up a list of all of the Outlets on MyViewController. I find this a lot easier than the ctrl-clicking that most of the tutorials suggest you do. Then I clicked and dragged from the circle next to pickerView down to the pickerView. Let go of the mouse button and it connects just fine.