UIScrollView自动ContentSize

Question

我试图自动设置我的UIScrollView的ContentSize，但是当我这样做时，框架 uiscrollview的高度与screenHeight不一样，因为我想。

有我的代码：

-(void) viewWillAppear:(BOOL)animated { 
     [self.scrollGeral setTranslatesAutoresizingMaskIntoConstraints:YES]; 

     [self.scrollGeral setContentSize:(CGSizeMake(screenSize.size.width, [self calcularAlturaScrollView]))]; 
} 



-(CGFloat) calcularAlturaScrollView { 
    CGFloat scrollViewHeight = 0.0f; 
    for (UIView* view in self.scrollGeral.subviews) 
    { 
     scrollViewHeight += view.frame.size.height; 
    } 
    return scrollViewHeight; 
} 

因此，I'have试图包含以下行：

[self.scrollGeral setFrame:CGRectMake(0, 0, screenSize.size.width, screenSize.size.height)]; 

但如果我这样做，在UIScrollView的 '禁用' 滚动

Answer 1

我用下面的代码解决了我的问题：

-(void) viewDidLayoutSubviews { 
    [self.scrollGeral setContentSize:(CGSizeMake(screenSize.size.width, [self calcularAlturaScrollView]))]; 
}