如何在XIB中正确加载和显示自定义UIView？

Question

Task is simple:

1. We have a XIB.
2. We have a custom UIView class implementation. Without XIB.
3. We can add thanks to IB UIView element to the XIB and set its class to custom UIView class.
4. We can create an outlet of our custom UIView class and connect custom UIView from XIB to it.
5. But it seems that we should do additional steps to show our custom UIView (and its elements -- labels, images, etc) when XIB is loaded.
6. Which steps?

UPD: The task is completed. We should use initWithCoder. Cite from Pizzaiola Gorgonzola : «initWithFrame is called when a UIView is created dynamically, from code. a view that is loaded from a .nib file is always instantiated using initWithCoder, the coder takes care of reading the settings from the .nib file». Thanks to question Subviews not showing up in UIView class .

Answer 1

如果这些元素不在nib / xib中，则可以在initWithCoder中添加/创建它们：

Answer 2

You may do something like this:

//MYCustomView.h
@interface MYCustomView : UIView
@end

//MYCustomView.m
@implementation MYCustomView

- (void)setup {
    // Do custom stuffs here...
}

- (id)init {
    self = [super init];
    if (self) {
        [self setup];
    }
    return self;
}

- (id)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        [self setup];
    }
    return self;
}

- (id)initWithCoder:(NSCoder *)aDecoder {
    self = [super initWithCoder:aDecoder];
    if (self) {
        [self setup];
    }
    return self;
}

@end