iPhone - 从 nib 文件加载 UIView? [英] iPhone - Load a UIView from a nib file?

问题描述

我正在继承 UIView 试图从 nib 文件加载我在界面构建器中删除的视图.我在返回行上收到以下错误:

I am subclassing UIView trying to load the view i have dropped in interface builder from a nib file. I get the following error on the return line:

由于未捕获的异常NSGenericException"而终止应用，原因:此编码器要求从 initWithCoder 返回替换的对象:"

- (id)initWithCoder:(NSCoder *)aDecoder
{
    [super initWithCoder:aDecoder];
    NSArray *objects = [[NSBundle mainBundle]
                        loadNibNamed:@"MyView" 
                        owner:nil 
                        options:nil];
    if (self = [objects objectAtIndex:0])
    {
    }
    return [self retain];
}

推荐答案

你在做一些很奇怪的事情)

You are doing something very strange)

loadNibNamed:owner:options: 将调用 initWithCoder: 从 xib 实例化您的视图.但是您正在从 initWithCoder: 调用 loadNibNamed:owner:options:.无限递归?

loadNibNamed:owner:options: will call initWithCoder: to instantiate your view from xib. But you are calling loadNibNamed:owner:options: from initWithCoder:. Infinite recursion?

要从 xib 加载视图，您可以执行以下操作:

To load view from xib you can do the next:

@implementation MyView

+ (MyView*) myView
{
  NSArray* array = [[NSBundle mainBundle] loadNibNamed:@"MyView" owner:nil options:nil];
  return [array objectAtIndex:0]; // assume that MyView is the only object in the xib
}

@end

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