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2014/10/15 ¤U¤È 10:10:31
iphone Programming Glossary: interestinghttp://stackoverflow.com/questions/1080043/how-to-disable-multitouch of the latter which worked better in my testing. Setting exclusiveTouch for the buttons kind of worked but led to some interesting problems when you moved your finger off the edge of a button rather than just clicking it. You need to have outlets in your..
How does the iOS app Display Recorder record the screen without using private API? http://stackoverflow.com/questions/11090184/how-does-the-ios-app-display-recorder-record-the-screen-without-using-private-ap . I wonder if this will lead to a change in their reviewing process but we will likely never know. One thing that is interesting to me is that there are still many more tricks developers could potentially use to hide their app's behavior from static..
What happens if I don't retain IBOutlet? http://stackoverflow.com/questions/1250518/what-happens-if-i-dont-retain-iboutlet a property it'd also be around because the nib loading code had retained it when setting the instance variable. One interesting point this highlights is that because the UITextField is additionally retained through the property you'll likely not want..
apply style to range of text with javascript in uiwebview http://stackoverflow.com/questions/2887101/apply-style-to-range-of-text-with-javascript-in-uiwebview share improve this question I think you're asking a lot to get a complete solution for this but it seemed interesting so I've implemented it. The following works in recent WebKit browsers including Safari on iPhone running OS 3.0. It uses..
UITextView with Syntax Highlighting [duplicate] http://stackoverflow.com/questions/3642540/uitextview-with-syntax-highlighting selection and editing. Nothing to be done at home and as it seems even for companies as the omni group. There is a interesting aspect to all of this iWork. Apple claims to not use any private API in them. But the text selection is the very same as..
Strange issue after upgrading to iOS 4.1 SDK http://stackoverflow.com/questions/3677879/strange-issue-after-upgrading-to-ios-4-1-sdk CGContextRef context CFDataRef metadata CG_AVAILABLE_STARTING __MAC_10_7 __IPHONE_4_0 The really interesting thing is the define __MAC_10_7 which appears not to be defined anywhere. I get this error when pre compiling the .pch file..
How to find out the modulus and exponent of RSA Public Key on iPhone/Objective C http://stackoverflow.com/questions/3840005/how-to-find-out-the-modulus-and-exponent-of-rsa-public-key-on-iphone-objective-c any external packages . First go to Apple's CryptoExercise example. Download the SecKeyWrapper class from there. The interesting function in that class is getPublicKeyBits. Link to the example http developer.apple.com library ios #samplecode CryptoExercise..
Is there an handwriting recognition library for IOS? http://stackoverflow.com/questions/4196576/is-there-an-handwriting-recognition-library-for-ios
What's the best way to put a c-struct in an NSArray? http://stackoverflow.com/questions/4516991/whats-the-best-way-to-put-a-c-struct-in-an-nsarray lateral thinking and looking more at performance Evgen has raised the issue of using STL vector in C . That raises an interesting issue is there a fast c library not unlike STL vector but much much lighter that allows for the minimal tidy handling of..
programatically measuring carrier's signal strength in iPhone device http://stackoverflow.com/questions/4954389/programatically-measuring-carriers-signal-strength-in-iphone-device seems to be getSignalStrength and register_notification functions in Classes VAFieldTestViewController.m that might be interesting to you as they call into CoreTelephony.framework . I am pretty confident that some of the used calls are undocumented in..
UIView and initWithFrame and a NIB file. How can i get the NIB file loaded? http://stackoverflow.com/questions/5056219/uiview-and-initwithframe-and-a-nib-file-how-can-i-get-the-nib-file-loaded
How to create custom easing function with Core Animation? http://stackoverflow.com/questions/5161465/how-to-create-custom-easing-function-with-core-animation with Core Animation I am animating a CALayer along a CGPath QuadCurve quite nicely in iOS. But I'd like to use a more interesting easing function than the few provided by Apple EaseIn EaseOut etc . For instance a bounce or elastic function. These things..
Tap pressure strength detection using accelerometer http://stackoverflow.com/questions/5179426/tap-pressure-strength-detection-using-accelerometer detection using accelerometer Yesterday in the presentation about the new Garageband for iPad 2 Apple demoed an interesting feature The detection of the tap pressure by using the accelerometer. See the drums section on the Garageband page . I'm..
What work has been done on cross-platform mobile development? [closed] http://stackoverflow.com/questions/51988/what-work-has-been-done-on-cross-platform-mobile-development not web apps though any information about the difficulties of using web apps across multiple mobile platforms is also interesting. iphone android blackberry mobile webos share improve this question The HTML5 standard has support for releasing stand..
Building openears compatible language model http://stackoverflow.com/questions/5220661/building-openears-compatible-language-model with OpenEars iphone speech recognition share improve this question Old question but maybe the answer is still interesting. OpenEars now has built in language model generation so one option is for you to create models dynamically in your app as..
Am I abusing UIViewController Subclassing? http://stackoverflow.com/questions/5691226/am-i-abusing-uiviewcontroller-subclassing The view controller object calls these methods itself to give subclasses a chance to take some action at an interesting point in the controller's life cycle. If UIViewController subclasses can't be counted on to call viewWillAppear why not..
UIModalTransitionStylePartialCurl doesn't get back to previous state. (Not dismissing) http://stackoverflow.com/questions/8606674/uimodaltransitionstylepartialcurl-doesnt-get-back-to-previous-state-not-dismi program compiled with iOS 4.3. It does not dismiss at all. It doesn't get back to A view controller... What the most interesting is that this curl is active and giving response in the app compiled with iOS 5.0. How can I resolve this problem Moreover..
Will my iPhone app take a performance hit if I use Objective-C for low level code? http://stackoverflow.com/questions/926728/will-my-iphone-app-take-a-performance-hit-if-i-use-objective-c-for-low-level-cod both languages for various reasons. Furthermore if there is someone out there actively pursuing this same thing I'd be interesting in pitching in some code to see the end results and I'm sure others would help out too. My guess is that they both have.. calls versus C and C in his post Performance Comparisons of Common Operations . Also this post by Savoy Software is an interesting read when it comes to tuning the performance of an iPhone application by using Objective C . I tend to prefer the clean..
UIScrollView image/photo viewer with paging enabled and zooming http://stackoverflow.com/questions/975708/uiscrollview-image-photo-viewer-with-paging-enabled-and-zooming You have to do this view moving otherwise you can pan left through the whitespace left by the other views. I found one interesting note in the Known Issues of the 3.0 SDK release notes UIScrollView After zooming content inset is ignored and content is..
Using accelerometer to calculate speeds http://stackoverflow.com/questions/10921395/using-accelerometer-to-calculate-speeds Has anyone tried or used these types of methods before android iphone accelerometer share improve this question Interesting application. You are missing an important point. You either have to implement the so called sensor fusion yourself or use..
becomeFirstResponder Doesn't respect Keyboard settings http://stackoverflow.com/questions/1214311/becomefirstresponder-doesnt-respect-keyboard-settings I have tried putting setKeyboardType UIKeyboardTypeNumbersAndPunctuation explicitly but it makes no difference. Interesting to note that it only happens if you call becomeFirstResponder programmatically. If the user clicks on the text field directly..
http://stackoverflow.com/questions/1540012/uiview-viewwithtag-0-problem then the one with tag 0. Note that only ONE UITextBox has tag 0 why UITextField self.view viewWithTag 0 .text @ foo Interesting that when triggered event received for the element with tag 0 I can get value of Tag 0 with no problem. Is there a limitation..
Fastest cross-platform A* implementation? http://stackoverflow.com/questions/2107601/fastest-cross-platform-a-implementation Generic C code. http swampthingtom.blogspot.com 2007 07 pathfinding sample using.html http opensteer.sourceforge.net Interesting for games not A . Stack Overflow on Dijkstra's Algorithm Any others The Wheel The question as asked pertains to reuse plug..
Can I embed a custom font in an iPhone application? http://stackoverflow.com/questions/360751/can-i-embed-a-custom-font-in-an-iphone-application too would be a bonus. EDIT it appears that the bounty auto awards to the answer with the highest number of votes. Interesting. No one actually provided an answer that solved the question as asked the solution that involves coding your own UILabel..
“Cannot connect to iTunes Store” in-app purchase problem http://stackoverflow.com/questions/7402801/cannot-connect-to-itunes-store-in-app-purchase-problem I get back valid product identifiers but upon purchase I receive the dreaded Cannot connect to iTunes Store . Interesting thing is that restore purchases seems to work iTunes login pops up. I have Checked that my in app purchases are cleared..
UIWebView - How to identify the “last” webViewDidFinishLoad message? http://stackoverflow.com/questions/908367/uiwebview-how-to-identify-the-last-webviewdidfinishload-message a way to determine that all loading of content is done iphone objective c uiwebview share improve this question Interesting I wouldn't have thought it would work like that. Although I'm sure there are other ways to do it is there a way to extract..
Get Exif data from UIImage - UIImagePickerController http://stackoverflow.com/questions/9766394/get-exif-data-from-uiimage-uiimagepickercontroller help me to solve this problem. Thanks in advance.. iphone objective c ipad exif share improve this question Interesting question I came up with the following solution working for images picked from your photo library note my code is using ARC..
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