UIView子类initWithFrame未被调用？ [英] UIView Subclass initWithFrame not being called?

问题描述

我有一个自定义的UIView子类。在IB中，我指定了一个占位符UIView并将类设置为我的类名。我的覆盖drawRect方法是工作，背景正在着色，但initWithFrame不是发射。为什么？

I have a custom UIView subclass. In IB, I have specified a "placeholder" UIView and set the class to my class name. My override of drawRect method is working, and the background is coloring properly, but the initWithFrame is not firing. Why?

- (id)initWithFrame:(CGRect)frame {
    NSLog(@"initWithFrame");
    if ((self = [super initWithFrame:frame])) {
        noteTextFont = [[UIFont boldSystemFontOfSize:12] retain];
    }
    return self;
}

- (void)drawRect:(CGRect)rect {
    [super drawRect:rect];
    CGContextRef context = UIGraphicsGetCurrentContext();

    UIColor *backgroundColor = [UIColor blackColor];
    [backgroundColor set];
    CGContextFillRect(context, rect);

    UIColor *labelColor = [UIColor lightGrayColor];
    [labelColor set];
    [notificationLabel drawInRect:CGRectMake(44, 18, rect.size.width-20, rect.size.height) withFont:noteTextFont lineBreakMode:UILineBreakModeTailTruncation];

    [self setNeedsLayout];
}

推荐答案

inited with - （id）initWithCoder：（NSCoder *）coder

Things loaded from a nib are inited with -(id)initWithCoder:(NSCoder*)coder

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