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2014/10/15 ¤U¤È 10:08:29
iphone Programming Glossary: especiallyHow do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder quality 44100 samples stereo 2 channels linear pcm. Beware if you want to use a different format especially an encoded one make sure you fully understand how to set the AVAudioRecorder settings read carefully..
How to intercept touches events on a MKMapView or UIWebView objects? http://stackoverflow.com/questions/1049889/how-to-intercept-touches-events-on-a-mkmapview-or-uiwebview-objects sdk 3.0 share improve this question None of the previous solutions above will work perfectly especially in cases involving multitouch. This solutions is the least intrusive and from my experience the best...
Difference between objectForKey and valueForKey? http://stackoverflow.com/questions/1062183/difference-between-objectforkey-and-valueforkey of your question . If you want to learn more about KVC there are many tutorials if you Google especially at Scott Stevenson's blog . You can also check out the NSKeyValueCoding Protocol Reference . Hope that..
Memory leak detection tools in Xcode http://stackoverflow.com/questions/144261/memory-leak-detection-tools-in-xcode Xcode Does Apple's Xcode development enviroment provide any tools for memory leak detection I am especially interested in tools that apply to the iPhone SDK. currently my favorite platfrom for hobby programming..
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions with proper handling for Landscape Portrait mode autorotation can be implemented. It is especially difficult to implement such an application when starting in landscape mode is desired. The most common..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received
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 but these would require me to render each glyph myself which is a bit too much like hard work especially for multi line text. I've also found posts that say straight out that it's not possible but without..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints is a bad idea memory wrap the docRef into a singleton. Cancel needless NSOperations When you can especially if they will be using memory beware of leaving contexts open though Recycle page objects by doing pointer..
How to customize the background/border colors of a grouped table view cell? http://stackoverflow.com/questions/400965/how-to-customize-the-background-border-colors-of-a-grouped-table-view-cell OS 3.0 and later UITableViewCell now has a backgroundColor property that makes this really easy especially in combination with the UIColor colorWithPatternImage initializer . But I'll leave the 2.0 version of..
http://stackoverflow.com/questions/5355846/iphone-facebook-video-upload is pretty much self explanatory. There ™s also some helpful discussion under my pull request especially the thing about SSL certificates on the api video cluster that could make the whole issue easier but..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud lot of people saying imageNamed is bad but equal numbers of people saying the performance is good especially when rendering UITableView s. See this SO question for example or this article on iPhoneDeveloperTips.com..
How do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder user pressing a button on the navBar. The recording uses cd quality 44100 samples stereo 2 channels linear pcm. Beware if you want to use a different format especially an encoded one make sure you fully understand how to set the AVAudioRecorder settings read carefully the audio types documentation otherwise you will never be able..
How to intercept touches events on a MKMapView or UIWebView objects? http://stackoverflow.com/questions/1049889/how-to-intercept-touches-events-on-a-mkmapview-or-uiwebview-objects 0 Any idea what I'm doing wrong iphone objective c iphone sdk 3.0 share improve this question None of the previous solutions above will work perfectly especially in cases involving multitouch. This solutions is the least intrusive and from my experience the best. The best way I have found to achieve this is with a Gesture..
Difference between objectForKey and valueForKey? http://stackoverflow.com/questions/1062183/difference-between-objectforkey-and-valueforkey
Memory leak detection tools in Xcode http://stackoverflow.com/questions/144261/memory-leak-detection-tools-in-xcode leak detection tools in Xcode Does Apple's Xcode development enviroment provide any tools for memory leak detection I am especially interested in tools that apply to the iPhone SDK. currently my favorite platfrom for hobby programming projects Documentations tutorials for said tools would be..
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions of corresponding set of questions here on SO how iPhone applications with proper handling for Landscape Portrait mode autorotation can be implemented. It is especially difficult to implement such an application when starting in landscape mode is desired. The most common observed effect are scrambled layouts and areas of the screen..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received
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 8304744 http forums.macrumors.com showthread.php t 569311 but these would require me to render each glyph myself which is a bit too much like hard work especially for multi line text. I've also found posts that say straight out that it's not possible but without justification so I'm looking for a definitive answer. EDIT failed..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints usage while drawing init'ing your NSOperations with a docRef is a bad idea memory wrap the docRef into a singleton. Cancel needless NSOperations When you can especially if they will be using memory beware of leaving contexts open though Recycle page objects by doing pointer swaps or destroy unused views Close any open Contexts..
How to customize the background/border colors of a grouped table view cell? http://stackoverflow.com/questions/400965/how-to-customize-the-background-border-colors-of-a-grouped-table-view-cell share improve this question UPDATE In iPhone OS 3.0 and later UITableViewCell now has a backgroundColor property that makes this really easy especially in combination with the UIColor colorWithPatternImage initializer . But I'll leave the 2.0 version of the answer here for anyone that needs it p It's harder than..
http://stackoverflow.com/questions/5355846/iphone-facebook-video-upload some comments in the FBVideoUpload class header but the interface is pretty much self explanatory. There ™s also some helpful discussion under my pull request especially the thing about SSL certificates on the api video cluster that could make the whole issue easier but I did not review the code yet. Rant It ™s a pity that the Facebook..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud the UIImage imageNamed FUD I see a lot of people saying imageNamed is bad but equal numbers of people saying the performance is good especially when rendering UITableView s. See this SO question for example or this article on iPhoneDeveloperTips.com UIImage 's imageNamed method used to leak so it was best..
How do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder The recording uses cd quality 44100 samples stereo 2 channels linear pcm. Beware if you want to use a different format especially an encoded one make sure you fully understand how to set the AVAudioRecorder settings read carefully the audio types documentation..
How to intercept touches events on a MKMapView or UIWebView objects? http://stackoverflow.com/questions/1049889/how-to-intercept-touches-events-on-a-mkmapview-or-uiwebview-objects objective c iphone sdk 3.0 share improve this question None of the previous solutions above will work perfectly especially in cases involving multitouch. This solutions is the least intrusive and from my experience the best. The best way I have..
Difference between objectForKey and valueForKey? http://stackoverflow.com/questions/1062183/difference-between-objectforkey-and-valueforkey this is beyond the scope of your question . If you want to learn more about KVC there are many tutorials if you Google especially at Scott Stevenson's blog . You can also check out the NSKeyValueCoding Protocol Reference . Hope that helps. share improve..
Memory leak detection tools in Xcode http://stackoverflow.com/questions/144261/memory-leak-detection-tools-in-xcode detection tools in Xcode Does Apple's Xcode development enviroment provide any tools for memory leak detection I am especially interested in tools that apply to the iPhone SDK. currently my favorite platfrom for hobby programming projects Documentations..
Break on EXC_BAD_ACCESS in XCode? http://stackoverflow.com/questions/1622079/break-on-exc-bad-access-in-xcode you made the error and with this little bit of information you can usually backtrack to see what the issue was. It especially helps in background threads when the Debugger sometimes craps out on any useful information. VERY IMPORTANT TO NOTE however..
iPhone Landscape FAQ and Solutions http://stackoverflow.com/questions/2953351/iphone-landscape-faq-and-solutions on SO how iPhone applications with proper handling for Landscape Portrait mode autorotation can be implemented. It is especially difficult to implement such an application when starting in landscape mode is desired. The most common observed effect are..
EXC_BAD_ACCESS signal received http://stackoverflow.com/questions/327082/exc-bad-access-signal-received
Detect retina screen/iPhone 4 in iPhone SDK http://stackoverflow.com/questions/3272752/detect-retina-screen-iphone-4-in-iphone-sdk application I am downloading some images from the web from my server to be precise in order to save some bandwith and especially memory on the phone I provide them in two resolutions 480x320 for the old iPhone series and in 960x640 for the iPhone 4..
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 showthread.php t 569311 but these would require me to render each glyph myself which is a bit too much like hard work especially for multi line text. I've also found posts that say straight out that it's not possible but without justification so I'm..
iOS multitasking for an Audio Recording application http://stackoverflow.com/questions/3848172/ios-multitasking-for-an-audio-recording-application multitasking while doing audio recordings in the background . The answer seems to be a no from what I've read so far especially since the program is meant to release any system resources being used when switched out. So I am wondering is it possible..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints with a docRef is a bad idea memory wrap the docRef into a singleton. Cancel needless NSOperations When you can especially if they will be using memory beware of leaving contexts open though Recycle page objects by doing pointer swaps or destroy..
How to customize the background/border colors of a grouped table view cell? http://stackoverflow.com/questions/400965/how-to-customize-the-background-border-colors-of-a-grouped-table-view-cell UPDATE In iPhone OS 3.0 and later UITableViewCell now has a backgroundColor property that makes this really easy especially in combination with the UIColor colorWithPatternImage initializer . But I'll leave the 2.0 version of the answer here for..
Can somebody explain the process of a UIViewController birth (which method follows which)? http://stackoverflow.com/questions/5107604/can-somebody-explain-the-process-of-a-uiviewcontroller-birth-which-method-follo viewWillDisappear and viewDidDisappear are only called when the view is being displayed or hidden on screen especially during animated transistions from one view to another. These methods may be called many times during the lifetime of your..
http://stackoverflow.com/questions/5214197/simple-iphone-motion-detect The good news is that it is not that hard to use for your problem domain. Start reading the Event Handling Guide especially the section Handling Processed Device Motion Data . If you are just interested in knowing that a slight motion was made..
http://stackoverflow.com/questions/5355846/iphone-facebook-video-upload header but the interface is pretty much self explanatory. There ™s also some helpful discussion under my pull request especially the thing about SSL certificates on the api video cluster that could make the whole issue easier but I did not review the..
Why is autorelease especially dangerous/expensive for iPhone applications? http://stackoverflow.com/questions/613583/why-is-autorelease-especially-dangerous-expensive-for-iphone-applications is autorelease especially dangerous expensive for iPhone applications I'm looking for a primary source or a really good explanation to back up the..
What is the maximum length of an NSString object? http://stackoverflow.com/questions/6482641/what-is-the-maximum-length-of-an-nsstring-object
Scrolling with two fingers with a UIScrollView http://stackoverflow.com/questions/787212/scrolling-with-two-fingers-with-a-uiscrollview touchesBegan than some number of touchesBegan touchesMoved touchesEnded finished with touchesEnded or touchesCancelled especially when dealing with UIScrollView. #2 can be tricky. If you decide the event is for UIScrollView another trick is to make UIScrollView..
How to set up CMake to build an app for the iPhone http://stackoverflow.com/questions/822404/how-to-set-up-cmake-to-build-an-app-for-the-iphone it's very useful to add the link directory HOME SDKROOT lib as above so that if your app links to a static library especially a generic non iPhone library you can build separate iPhoneOS and iPhoneSimulator libraries and easily link to the right..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud FUD I see a lot of people saying imageNamed is bad but equal numbers of people saying the performance is good especially when rendering UITableView s. See this SO question for example or this article on iPhoneDeveloperTips.com UIImage 's imageNamed..
Cross compiling FreeTDS to iPhone http://stackoverflow.com/questions/11424846/cross-compiling-freetds-to-iphone HAVE_ICONV 1 to #define HAVE_ICONV 0 6 If you previously ran . configure make make install then run these commands. Especially if your switching architectures as you will get errors running make without doing this sudo make clean sudo make uninstall..
Read large file into sqlite table in objective-C on iPhone http://stackoverflow.com/questions/1214000/read-large-file-into-sqlite-table-in-objective-c-on-iphone
Declaration/definition of variables locations in ObjectiveC? http://stackoverflow.com/questions/12632285/declaration-definition-of-variables-locations-in-objectivec Thanks a bunch folks iphone objective c ios ios5 share improve this question I can understand your confusion. Especially since recent updates to Xcode and the new LLVM compiler changed the way ivars and properties can be declared. Before modern..
http://stackoverflow.com/questions/14659563/to-drawrect-or-not-to-drawrect-when-should-one-use-drawrect-core-graphics-vs-su accomplish the same thing with UIImageViews and a pre rendered png should you always go that route A similar question Especially with badass tools like this when should you consider drawing interface elements in core graphics Probably when the display..
Single-Stage vs Two-Stage Animation for iPhone Apps? http://stackoverflow.com/questions/2048781/single-stage-vs-two-stage-animation-for-iphone-apps c animation rotation share improve this question Everything is explained in the UIViewController Class Reference . Especially check out the View Rotation section near the top. From the reference Handling View Rotations By default the UIViewController..
Is it legal to use the well-known free memory code in ipad/iphone app? [closed] http://stackoverflow.com/questions/3823266/is-it-legal-to-use-the-well-known-free-memory-code-in-ipad-iphone-app need to profile and identify what those memory issues are and optimise them. Think of it from a user's perspective. Especially on multi tasking capable iPhones iPads with 4.2 . The user has apps in the background that he she will want to go back to..
Where to begin when developing web applications for smartphones http://stackoverflow.com/questions/3869347/where-to-begin-when-developing-web-applications-for-smartphones site mobile friendly then use jQtouch. From testing the demos Sencha can better cross platform support than jQtouch. Especially if you want to target users with iOS devices iPad iPhone iPod Touch . All this is regarding the client side of your web..
When should I use the ?œself??keyword? http://stackoverflow.com/questions/4080523/when-should-i-use-the-self-keyword a property. Normally you always use self for any access of a property. It's the most secure and uncomplicated way. Especially if you used retain then memory management will be done for you. The two exceptions from this rule Any init method. In dealloc..
Proper way to instantiate an NSDecimalNumber from float or double http://stackoverflow.com/questions/5304855/proper-way-to-instantiate-an-nsdecimalnumber-from-float-or-double There seems to be some issues relating to precision and conversion to from doubles with NSDecimalNumber . Especially when you use the initialisation members inherited from NSNumber. I knocked up the test below double dbl 36.76662445068359375000..
How to get keyboard with Next, Previous and Done Button? http://stackoverflow.com/questions/5591792/how-to-get-keyboard-with-next-previous-and-done-button I want to have a keyboard which has a Next Previous and Done button on top of it. I have seen that in many apps. Especially where there are forms to be filled. I want to achieve something similar to above keyboard How can I get that iphone cocoa..
MPMoviePlayerViewController play movie from Documents directory - objective-c http://stackoverflow.com/questions/7520437/mpmovieplayerviewcontroller-play-movie-from-documents-directory-objective-c play video from the documents folder. One of the things I would recommend is to avoid some of the autorelease objects. Especially on NSURL when you have viewcontrollers. I know it should be safe but I've never found it to be 100 if NSFileManager defaultManager..
Moving a Stick figure, anchorpoints, animation, or something else…? http://stackoverflow.com/questions/7808981/moving-a-stick-figure-anchorpoints-animation-or-something-else understanding of what it does and how it helps you accomplish things. In all other cases modify the position property. Especially if you do bounding box or radius based collision detection modifying the anchor point is counter productive. Let's assume..
iOS Stream Audio from one iOS Device to Another http://stackoverflow.com/questions/8357514/ios-stream-audio-from-one-ios-device-to-another you're dealing with large amounts of data on an iOS device you'll have no choice but to hold the bulk of that on disk. Especially if the user can replay the audio rewind it etc. you'll need to hold it all somewhere Anyway assuming that AQPlayer will..
UITextView and UIPickerView with its own UIToolbar http://stackoverflow.com/questions/885002/uitextview-and-uipickerview-with-its-own-uitoolbar to implement this. Would I create my own subview with that toolbar and textview pickerview Is there a more elegant way Especially something that leverages becomeFirstResponder of UITextfield iphone cocoa touch uitextfield uitextview uipickerview share..
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