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2014/10/15 ¤U¤È 10:14:16
iphone Programming Glossary: smallerResize UIImage with aspect ratio? http://stackoverflow.com/questions/1703100/resize-uiimage-with-aspect-ratio newRect CGRectMake leftOffset topOffset newWidth newHeight If you don't want to enlarge images smaller than the screenRect make sure factor is greater than or equal to one e.g. factor fmax factor 1 . To..
Detecting touch screen devices with Javascript http://stackoverflow.com/questions/3974827/detecting-touch-screen-devices-with-javascript and click both. One other way could be using CSS media queries and using some styles only for smaller screens mobile devices which are the ones most likely to have touch tap functionality. So if you you..
How to change UIPickerView height http://stackoverflow.com/questions/573979/how-to-change-uipickerview-height change the height of UIPickerView Some applications seem to have shorter PickerViews but setting a smaller frame doesn't seem to work and the frame is locked in Interface Builder. iphone cocoa touch uikit uipickerview.. of the view by taking complete control and passing a desired frame size at creation time e.g smallerPicker UIPickerView alloc initWithFrame CGRectMake 0.0 0.0 320.0 120.0 You will discover that at various..
What's the easiest way to resize/optimize an image size with the iPhone SDK? http://stackoverflow.com/questions/612131/whats-the-easiest-way-to-resize-optimize-an-image-size-with-the-iphone-sdk to show the image in its original size I'm planning on resizing the image to something a bit smaller to save on space performance. Also some of those images are JPEGs and they are not saved as the usual..
How do I get a background location update every n minutes in my iOS application? http://stackoverflow.com/questions/6347503/how-do-i-get-a-background-location-update-every-n-minutes-in-my-ios-application in the background by using UIApplication beginBackgroundTaskWithExpirationHandler In case n is smaller than UIApplication backgroundTimeRemaining it does works just fine in case n is larger the location..
canonical way to randomize an NSArray in Objective C http://stackoverflow.com/questions/791232/canonical-way-to-randomize-an-nsarray-in-objective-c it's between n and m. More naive techniques like taking random modulo n introduce a bias towards smaller numbers in the range. static NSUInteger random_below NSUInteger n NSUInteger m 1 Compute smallest power..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud of UIImages referenced by filename. It gets bigger and when memory runs out it gets a lot smaller. For example does anyone know for sure that the image cache behind imageNamed does not respond to didReceiveMemoryWarning..
Resize UIImage with aspect ratio? http://stackoverflow.com/questions/1703100/resize-uiimage-with-aspect-ratio 2 float topOffset screenRect.size.height newHeight 2 CGRect newRect CGRectMake leftOffset topOffset newWidth newHeight If you don't want to enlarge images smaller than the screenRect make sure factor is greater than or equal to one e.g. factor fmax factor 1 . To get the black background you would probably just want to set..
Detecting touch screen devices with Javascript http://stackoverflow.com/questions/3974827/detecting-touch-screen-devices-with-javascript iphone android share improve this question 1 for doing hover and click both. One other way could be using CSS media queries and using some styles only for smaller screens mobile devices which are the ones most likely to have touch tap functionality. So if you you have some specific styles via CSS and from jQuery you check..
How to change UIPickerView height http://stackoverflow.com/questions/573979/how-to-change-uipickerview-height to change UIPickerView height Is it possible to change the height of UIPickerView Some applications seem to have shorter PickerViews but setting a smaller frame doesn't seem to work and the frame is locked in Interface Builder. iphone cocoa touch uikit uipickerview share improve this question It seems obvious.. but I have found that you can achieve a change in the height of the view by taking complete control and passing a desired frame size at creation time e.g smallerPicker UIPickerView alloc initWithFrame CGRectMake 0.0 0.0 320.0 120.0 You will discover that at various heights and widths there are visual glitches. Obviously..
What's the easiest way to resize/optimize an image size with the iPhone SDK? http://stackoverflow.com/questions/612131/whats-the-easiest-way-to-resize-optimize-an-image-size-with-the-iphone-sdk . Since the iPhone doesn't even have a big enough display to show the image in its original size I'm planning on resizing the image to something a bit smaller to save on space performance. Also some of those images are JPEGs and they are not saved as the usual 60 quality setting. How can I resize a picture with the iPhone..
How do I get a background location update every n minutes in my iOS application? http://stackoverflow.com/questions/6347503/how-do-i-get-a-background-location-update-every-n-minutes-in-my-ios-application the following Specify location background mode Use an NSTimer in the background by using UIApplication beginBackgroundTaskWithExpirationHandler In case n is smaller than UIApplication backgroundTimeRemaining it does works just fine in case n is larger the location manager should be enabled and disabled again before there is..
canonical way to randomize an NSArray in Objective C http://stackoverflow.com/questions/791232/canonical-way-to-randomize-an-nsarray-in-objective-c takes random modulo m then throws away the random number if it's between n and m. More naive techniques like taking random modulo n introduce a bias towards smaller numbers in the range. static NSUInteger random_below NSUInteger n NSUInteger m 1 Compute smallest power of two greater than n. There's probably a faster solution..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud basic understanding is that it's a simple NSMutableDictionary of UIImages referenced by filename. It gets bigger and when memory runs out it gets a lot smaller. For example does anyone know for sure that the image cache behind imageNamed does not respond to didReceiveMemoryWarning It seems unlikely that Apple would not..
UIView's frame, bounds, center, origin, when to use what? http://stackoverflow.com/questions/1071112/uiviews-frame-bounds-center-origin-when-to-use-what usually 0 0 width height . Changing this property will allow you to draw outside of the frame or restrict drawing to a smaller area within the frame. A good discussion of this can be found at the link below. It is uncommon for this property to be..
iphone Core Data Unresolved error while saving http://stackoverflow.com/questions/1283960/iphone-core-data-unresolved-error-while-saving
Center content of UIScrollView when smaller http://stackoverflow.com/questions/1316451/center-content-of-uiscrollview-when-smaller content of UIScrollView when smaller I have an UIImageView inside a UIScrollView which I use for zooming and scrolling. If the image content of the scroll view.. image content of the scroll view if bigger than the scroll view everything works fine. However when the image becomes smaller than the scroll view it sticks to the top left corner of the scroll view. I would like to keep it centered like the Photos.. it centered like the Photos app. Any ideas or examples about keeping the content of the UIScrollView centered when smaller I am working with iPhone 3.0. The following code almost works. The image returns to the top left corner if I pinch it after..
Strange problem comparing floats in objective-C http://stackoverflow.com/questions/1614533/strange-problem-comparing-floats-in-objective-c of 0.1 in floats and doubles. Now using a float gives you a small error. Using a double gives you an even smaller error. The problem now is that by casting the float to a double you carry over the bigger of error of the float . Of course..
Resize UIImage with aspect ratio? http://stackoverflow.com/questions/1703100/resize-uiimage-with-aspect-ratio newHeight 2 CGRect newRect CGRectMake leftOffset topOffset newWidth newHeight If you don't want to enlarge images smaller than the screenRect make sure factor is greater than or equal to one e.g. factor fmax factor 1 . To get the black background..
How to set the width of a cell in a UITableView in grouped style http://stackoverflow.com/questions/2539021/how-to-set-the-width-of-a-cell-in-a-uitableview-in-grouped-style i share my learnings with you. The question is Is it possible to make the width of a cell in a grouped UITableView smaller The answer is No. But there are two ways you can get around this problem. Solution #1 A thinner table It is possible to.. problem. Solution #1 A thinner table It is possible to change the frame of the tableView so that the table will be smaller. This will result in UITableView rendering the cell inside with the reduced width. A solution for this can look like this..
iPad/iPhone browser crashing when loading images in Javascript http://stackoverflow.com/questions/2986039/ipad-iphone-browser-crashing-when-loading-images-in-javascript and so on you should never get near the 10MB limit. If you wanted to do a carousel application you'd have to use smaller placeholders first. You might find this technique might be easier to implement. I think I may actually have found a work..
Detecting touch screen devices with Javascript http://stackoverflow.com/questions/3974827/detecting-touch-screen-devices-with-javascript 1 for doing hover and click both. One other way could be using CSS media queries and using some styles only for smaller screens mobile devices which are the ones most likely to have touch tap functionality. So if you you have some specific..
Just two rounded corners? [duplicate] http://stackoverflow.com/questions/4845211/just-two-rounded-corners In my iPad app I want a second view to appear within the main when the user clicks a button. The new view will be smaller than the first and darken the background when it is displayed. I want the top two corners of the new view to appear rounded..
How to create subscript characters that's not in Unicode in iOS http://stackoverflow.com/questions/5080175/how-to-create-subscript-characters-thats-not-in-unicode-in-ios are not character traits. With few exceptions e. g. ² ³ ª this is the way regular characters are rendered in a smaller font and above below the regular characters' baseline. With this in mind you cannot have an NSString with subscripted characters..
How to change UIPickerView height http://stackoverflow.com/questions/573979/how-to-change-uipickerview-height Is it possible to change the height of UIPickerView Some applications seem to have shorter PickerViews but setting a smaller frame doesn't seem to work and the frame is locked in Interface Builder. iphone cocoa touch uikit uipickerview share.. a change in the height of the view by taking complete control and passing a desired frame size at creation time e.g smallerPicker UIPickerView alloc initWithFrame CGRectMake 0.0 0.0 320.0 120.0 You will discover that at various heights and widths..
What's the easiest way to resize/optimize an image size with the iPhone SDK? http://stackoverflow.com/questions/612131/whats-the-easiest-way-to-resize-optimize-an-image-size-with-the-iphone-sdk have a big enough display to show the image in its original size I'm planning on resizing the image to something a bit smaller to save on space performance. Also some of those images are JPEGs and they are not saved as the usual 60 quality setting...
How do I get a background location update every n minutes in my iOS application? http://stackoverflow.com/questions/6347503/how-do-i-get-a-background-location-update-every-n-minutes-in-my-ios-application mode Use an NSTimer in the background by using UIApplication beginBackgroundTaskWithExpirationHandler In case n is smaller than UIApplication backgroundTimeRemaining it does works just fine in case n is larger the location manager should be enabled..
What is the maximum length of an NSString object? http://stackoverflow.com/questions/6482641/what-is-the-maximum-length-of-an-nsstring-object NSString can hold a little over 4.2 billion characters. As others have pointed out though the practical limit is much smaller on an iOS device especially you'll run out of memory long before you hit any hard limit in NSString. share improve this..
canonical way to randomize an NSArray in Objective C http://stackoverflow.com/questions/791232/canonical-way-to-randomize-an-nsarray-in-objective-c the random number if it's between n and m. More naive techniques like taking random modulo n introduce a bias towards smaller numbers in the range. static NSUInteger random_below NSUInteger n NSUInteger m 1 Compute smallest power of two greater than..
Better performance with libxml2 or NSXMLParser on the iPhone? http://stackoverflow.com/questions/826281/better-performance-with-libxml2-or-nsxmlparser-on-the-iphone I've generally found for larger chunks of data like the apple example you reference libxml2 tends to be faster. For smaller chunks of data the difference is negligible. One advantage i like about NSXMLParser is that it is an Objective C based implementation..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud a simple NSMutableDictionary of UIImages referenced by filename. It gets bigger and when memory runs out it gets a lot smaller. For example does anyone know for sure that the image cache behind imageNamed does not respond to didReceiveMemoryWarning..
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