IBOutlet在drawRect方法中为零(IBOutlet is nil in drawRect method)

IBOutlet在drawRect方法中为零(IBOutlet is nil in drawRect method)

我有一个带有xib的UIView子类，名为RoundedImageView ，它只实现了drawRect方法。 xib包含一个带有插座的AsyncImageView （它是UIImageView的子类）。 此RoundedImageView是自定义表视图单元格的一部分。 在这个单元格的awakeFromNib方法中， RoundedImageView不是nil，但它的AsyncImageView出口是零。 为什么会发生这种情况？我该如何解决这个问题？

I have a UIView subclass with a xib called RoundedImageView, which only implements the drawRect method. The xib contains an AsyncImageView (which is a subclass of UIImageView) with an outlet. This RoundedImageView is part of a custom table view cell. In the awakeFromNib method of this cell, the RoundedImageView is not nil, but it's AsyncImageView outlet is nil. Why is this happening and how do I fix this?

最满意答案

在与OP讨论聊天之后，问题结果是表格单元格/ RoundedImageView在一个笔尖中，而带有AsycImageView在另一个笔尖中。 解决方案是从单元格中删除RoundedImageView ，并将其nib加载到单元格的awakeFromNib方法中：

@implementation InviteFriendsImageVIew - (void)awakeFromNib { UINib *imageViewNib = [UINib nibWithName:@"RoundedImageView" bundle:nil]; RoundedImageView *imageView = [imageViewNib instantiateWithOwner:nil options:nil][0]; imageView.frame = // set frame here [self addSubView:imageView]; self.roundedImageView = imageView; }

After discussion with OP in chat, the issue turned out to be that the table cell / RoundedImageView was in one nib, and RoundedImageView with AsycImageView was in another. The solution was remove RoundedImageView from the cell, and load its nib in the cell's awakeFromNib method:

@implementation InviteFriendsImageVIew - (void)awakeFromNib { UINib *imageViewNib = [UINib nibWithName:@"RoundedImageView" bundle:nil]; RoundedImageView *imageView = [imageViewNib instantiateWithOwner:nil options:nil][0]; imageView.frame = // set frame here [self addSubView:imageView]; self.roundedImageView = imageView; }