uiimageview

问题 I have my UIImageView in the view which will download image from server and after downloading finish then my UIImageView height will be adjusted according to height of image but the problem is it is working perfectly in iOS8 but not in iOS7. In iOS7, the height is scaled to much more than I tried to set. I am setting autolayout via IB Here is the excerpt from my code (default is 250) if(image.size.height<250) headerView.itemImageView.contentMode = UIViewContentModeCenter; else{ adjustedHeight

问题 How do I create an image which moves into the screen? So it comes up from the bottom and stops when totally visible. I would also play with the speed and direction. It's not like scrolling of photos as demonstrated in the PhotosSroller example of Apple 回答1: CGRect endFrame = [[self view] frame]; [imageView setFrame: CGRectMake([[self view] frame].origin.x, [[self view] frame].origin.y + 480.0, [[self view] frame].size.width, [[self view] frame].size.height)]; [UIView beginAnimations: nil

问题 Hi my requirement is showing image in scrollview along with that it should display next and previous button.User can scroll the image as well as use buttons to move images. I have doubt about how to get the index / tag / imagename or anything else when user scroll based on that values buttons should be updated. Here is my Code [self arrayInitiaisation]; scrollview.pagingEnabled = YES; scrollview.alwaysBounceVertical = NO; scrollview.alwaysBounceHorizontal = YES; NSInteger numberOfViews = 4;

问题 I have a UITableView and I had like to download images asynchronously. How can I do using using ios5 and storyboards? Thanks in advance 回答1: I was having the very same problem, and what I did was take SDWebImage from https://github.com/rs/SDWebImage, open up the project on its own, and manually upgrade it to Objective C ARC (Refactor --> Convert to Objective C ARC). When it was done being converted, I added it the individual files to my project and it works like a charm. I just #import

问题 I am wondering how to combine drawn pixels in a UIView with the image in a UIImageView and save it as a new image? I have no clue how to go about this. If anyone could point me in the right direction, I would love it. Thank you! 回答1: Check out Quartz 2D. Specifically, CGContextDrawImage() can be used to load an image, draw whatever you want on this context, and then you can CGBitmapContextCreateImage() to create a CGImageRef from which you can create an image with UIImage 's imageWithCGImage

问题 I 've never had problems with my app using AFNetworking, because I had like 20 imageview to show , but now my app crash because I want to set imagewithURL to 150 Imageviews, if I commented that line all is ok, this is my code: for (int i=0; i< Array.count; i++) { UIImageView *imgProd=[[UIImageView alloc] initWithFrame:CGRectMake(margenX, margenY, 220, 330)]; imgProd.contentMode = UIViewContentModeScaleAspectFill; imgProd.clipsToBounds = YES; [imgProd setTag:i]; // dispatch_async(dispatch_get

问题 I 've never had problems with my app using AFNetworking, because I had like 20 imageview to show , but now my app crash because I want to set imagewithURL to 150 Imageviews, if I commented that line all is ok, this is my code: for (int i=0; i< Array.count; i++) { UIImageView *imgProd=[[UIImageView alloc] initWithFrame:CGRectMake(margenX, margenY, 220, 330)]; imgProd.contentMode = UIViewContentModeScaleAspectFill; imgProd.clipsToBounds = YES; [imgProd setTag:i]; // dispatch_async(dispatch_get

问题 Why do i get error ImageIO: _CGImagePluginInitGIFmalformed GIF file (768 x 1024)? I am going crazy! This error shows up in XCode console when some of my .gif images need to show up in UIImageView. Images do not display(!) and I get that in console. That error is showing only for few images, not all! I tried to remove the images, add them again, clean, rebuild, but I still cant display those images! Everything was OK until I installed XCode 4.0.1, all images were working and displaying fine!

问题 Hi i am trying to implement split the UIView using UIPinchGestureRecognizer , but the following issue are their, if any one know how to solve kindly. This is my pinchGestureHandlerCode: - (IBAction)splitView:(UIPinchGestureRecognizer*)recognizer { if(recognizer.state == UIGestureRecognizerStateBegan) { CGPoint selectedFolderPoint = CGPointMake([recognizer locationInView:recognizer.view].x, recognizer.view.frame.origin.y); self.splitPosition = ([recognizer locationOfTouch:0 inView:recognizer

问题 I have number of images and they are named as image0, image1, image2..., image(x). My question is how can I access their name because I want to put all of them in array like: @IBOutlet weak var image0: UIImageView! @IBOutlet weak var image1: UIImageView! @IBOutlet weak var image2: UIImageView! @IBOutlet weak var image3: UIImageView! @IBOutlet weak var image4: UIImageView! @IBOutlet weak var image5: UIImageView! ... @IBOutlet weak var image15: UIImageView! var counter: Int = 0 var items :[