retina-display

I'm currently developing an application for iPhone with iOS7, only. From what I read, for iPhone with iOS7, there is no support for older devices than iPhone4. If that's the case, when it comes to images, all I need is retina images (@2x). Can I submit to the App Store, an app with only retina images, since the app's minimal requirement is retina devices ? Thank you. Beppe Possible duplicate of Can I dump my non-Retina Images for a iOS7 only app? Anyway, as long as I know you don't need @2x version of your images as long as you don't support old displays, but remember that your images as to be

How can I detect if a user has a retina display in Java? I am already aware of detecting the scale factor using Toolkit.getDefaultToolkit().getDesktopProperty("apple.awt.contentScaleFactor") , but java won't let me convert the returned value into an int. I'm wondering how I can convert that into an int, or another way to detect retina displays. I would get the value this way - public static boolean hasRetinaDisplay() { Object obj = Toolkit.getDefaultToolkit() .getDesktopProperty( "apple.awt.contentScaleFactor"); if (obj instanceof Float) { Float f = (Float) obj; int scale = f.intValue();

I have a UIView that draws a circle from inside drawRect:rect. After reading the Apple dev info on the Retina display, it seemed like using Core Graphics meant that the drawings would automatically take advantage of the higher res. This simple circle, however, looks pretty chunky as compared to a similar circle in a badge icon. Obviously I'm comparing it to something that has gloss and shadow but I think it's pretty obvious that mine is not being drawn as well. I tried taking screenshots of apple's icon badge and my circle and they look about the same on my mac - the difference is obvious when

I'm working on an iOS app. It currently only works on iOS 4 since I use the following method on several occasions: "UIGraphicsBeginImageContextWithOptions". This method is only available in iOS 4 and therefor my app currently crashes/doesn't work on iPhone OS 3. Aside from this method there is no reason why the app should not work on iPhone OS 3. How do I make a check to see wether or not this method is available ? I've tried the following without succes: if([self respondsToSelector:@selector(UIGraphicsBeginImageContextWithOptions)]) { UIGraphicsBeginImageContextWithOptions(targetSize, NO, 0.0

I have a situation where I can't possibly know the dimensions of an image (a proprietary limited cms...) I need to figure out how to show a retina level image, and I want to do so without using javascript (if possible). I've been using: @media only screen and (-webkit-min-device-pixel-ratio: 2) {} but that only has helped me with elements that have background images. Since the image in question can't be a background image (since I don't know the size...) what's a way of figuring this out? I have logo.png and logo2x.png , and my applicable markup looks something like: <h1 id="logo"> <a href="/"

My computer is a Mac pro with a 13 inch retina screen. The screen resolution is 1280*800 (default). Using the following code: gWindow = glfwCreateWindow(800, 600, "OpenGL Tutorial", NULL, NULL); //case 1 glViewport(0,0,1600,1200); //case 2 glViewport(0,0,800,600); Case 1 results in a triangle that fits the window. Case 2 results in a triangle that is 1/4th the size of the window. Half of viewport: The GLFW documentation indicates the following (from here ): While the size of a window is measured in screen coordinates, OpenGL works with pixels. The size you pass into glViewport, for example,