UIScrollView自動ContentSize

Question

我試圖自動設置我的UIScrollView的ContentSize，但是當我這樣做時，框架 uiscrollview的高度與screenHeight不一樣，因爲我想。

有我的代碼：

-(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試圖包含以下行：

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

但如果我這樣做，在UIScrollView的 '禁用' 滾動

Answer 1

我用下面的代碼解決了我的問題：

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