UIImage在启动时不适合UIScrollView [英] UIImage Is Not Fitting In UIScrollView At Start

问题描述

我的图像如下：

当我将图像加载到uiimageview然后作为子视图添加到uiscrollview时，在开始时图像显示如下：

<问题是我希望看到所有图像在开始时都适合屏幕，但它显示已经缩放。有没有办法处理这个请帮助...

我的代码如下：

  [self.view addSubview：scrollView]; 
 UIImageView * tempImageView = 
 [[UIImageView alloc] initWithImage：[UIImage imageNamed：@Tree.jpg]]; 
 self.imageView = tempImageView; 
 [tempImageView release]; 
 [scrollView setContentMode：UIViewContentModeScaleAspectFit]; 
 [imageView sizeToFit]; 
 scrollView.backgroundColor = [UIColor blackColor]; 
 scrollView.contentSize = imageView.frame.size; 
 scrollView.minimumZoomScale = scrollView.frame.size.width / imageView.frame.size.width; 
 scrollView.maximumZoomScale = 4.0; 
 [scrollView setZoomScale：1.0]; 
 scrollView.clipsToBounds = YES; 
 scrollView.delegate = self; 
 [scrollView addSubview：imageView]; 
  

解决方案

可能你正在寻找这个，

  UIImageView * tempImageView = [[[UIImageView alloc] initWithImage：[UIImage imageNamed：@Watson.jpg]] autorelease]; 
 tempImageView.frame = scrollView.bounds; 
 self.imageView = tempImageView; 
 
 scrollView.backgroundColor = [UIColor blackColor]; 
 scrollView.minimumZoomScale = 1.0; 
 scrollView.maximumZoomScale = imageView.image.size.width / scrollView.frame.size.width; 
 scrollView.zoomScale = 1.0; 
 scrollView.delegate = self; 
 
 [scrollView addSubview：imageView]; 
  

I have an image like:

When I load the image to uiimageview and then adding as a subview to uiscrollview, at start the image is showing like:

The problem is I want to see all the image fit to screen at start but it is showing already zoomed. Is there a way to handle this please help ...

I have the code like:

[self.view addSubview:scrollView];
UIImageView *tempImageView = 
[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"Tree.jpg"]];
self.imageView = tempImageView;
[tempImageView release];
[scrollView setContentMode:UIViewContentModeScaleAspectFit];
[imageView sizeToFit];
scrollView.backgroundColor=[UIColor blackColor];
scrollView.contentSize = imageView.frame.size;
scrollView.minimumZoomScale = scrollView.frame.size.width / imageView.frame.size.width;
scrollView.maximumZoomScale = 4.0;
[scrollView setZoomScale:1.0];
scrollView.clipsToBounds = YES;
scrollView.delegate = self;
[scrollView addSubview:imageView];

解决方案

Probably you are looking for this,

UIImageView *tempImageView = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"Watson.jpg"]] autorelease];
tempImageView.frame = scrollView.bounds;
self.imageView = tempImageView;

scrollView.backgroundColor = [UIColor blackColor];
scrollView.minimumZoomScale = 1.0  ;
scrollView.maximumZoomScale = imageView.image.size.width / scrollView.frame.size.width;
scrollView.zoomScale = 1.0;
scrollView.delegate = self;

[scrollView addSubview:imageView];

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