2014/10/15 下午 10:12:23
iphone Programming Glossary: otherwiseHow do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder understand how to set the AVAudioRecorder settings read carefully the audio types documentation otherwise you will never be able to initialize it correctly. One more thing. In the code I am not showing how..
Where to place the “Core Data Stack” in a Cocoa/Cocoa Touch application http://stackoverflow.com/questions/1267520/where-to-place-the-core-data-stack-in-a-cocoa-cocoa-touch-application appropriate unit of currency for a view controller is therefore usually a managed object context otherwise a managed object. Using and passing a singleton object that manages a stack and from which you retrieve..
How to add a UIImage in MailComposer Sheet of MFMailComposeViewController http://stackoverflow.com/questions/1527351/how-to-add-a-uiimage-in-mailcomposer-sheet-of-mfmailcomposeviewcontroller img src 'data image png base64 @' b p base64String You could repeat here with more text or images otherwise close the HTML formatting emailBody appendString @ body html NSLog @ @ emailBody Create the mail composer..
How to save picture to iPhone photo library? http://stackoverflow.com/questions/178915/how-to-save-picture-to-iphone-photo-library
http://stackoverflow.com/questions/1861656/iphone-reachability-checking to the movie. According to their usually vague agreement you aren't allowed to have sweepstakes otherwise. I would also think this adheres more strictly to their only use things if you absolutely need them..
Difference between self.ivar and ivar? http://stackoverflow.com/questions/4142177/difference-between-self-ivar-and-ivar
iPhone different between self and normal variable http://stackoverflow.com/questions/536388/iphone-different-between-self-and-normal-variable retain the variable and if you specify copy it will copy it. The accessors will unless you specify otherwise be named propertyName and setPropertyName. Using the . notation note not the self syntax as stated above..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload as displayed in an UIImageView directly after taking the picture but viewing on the server says otherwise. iphone cocoa touch ios share improve this question A UIImage has a property imageOrientation which..
http://stackoverflow.com/questions/603907/uiimage-resize-then-crop I have found so far seems to smash the image be upside down look like crap draw out of bounds or otherwise just not work correctly. Thank you SO much for your help. iphone ios image processing core graphics..
MKAnnotationView - Lock custom annotation view to pin on location updates http://stackoverflow.com/questions/6392931/mkannotationview-lock-custom-annotation-view-to-pin-on-location-updates if we don't have a current location yet create one place it on the map and adjust the map's region otherwise update the annotation placement and map position in a smooth animation if self.currentLocationAnnotation..
Has anyone implemented the PayPal API through a native iPhone app? http://stackoverflow.com/questions/779423/has-anyone-implemented-the-paypal-api-through-a-native-iphone-app is to give them a UIWebView of the paypal mobile site and let them complete the transaction there otherwise the user would need to use their API key. Does this sound right and has anyone got or seen any sample..
canonical way to randomize an NSArray in Objective C http://stackoverflow.com/questions/791232/canonical-way-to-randomize-an-nsarray-in-objective-c
How do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder 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 to initialize it correctly. One more thing. In the code I am not showing how to handle metering data but you can figure it out easily. Finally..
Where to place the “Core Data Stack” in a Cocoa/Cocoa Touch application http://stackoverflow.com/questions/1267520/where-to-place-the-core-data-stack-in-a-cocoa-cocoa-touch-application a different context to perform a discrete set of actions. The appropriate unit of currency for a view controller is therefore usually a managed object context otherwise a managed object. Using and passing a singleton object that manages a stack and from which you retrieve a context typically at best introduces a needless level..
How to add a UIImage in MailComposer Sheet of MFMailComposeViewController http://stackoverflow.com/questions/1527351/how-to-add-a-uiimage-in-mailcomposer-sheet-of-mfmailcomposeviewcontroller emailBody appendString NSString stringWithFormat @ p b img src 'data image png base64 @' b p base64String You could repeat here with more text or images otherwise close the HTML formatting emailBody appendString @ body html NSLog @ @ emailBody Create the mail composer window MFMailComposeViewController emailDialog MFMailComposeViewController..
How to save picture to iPhone photo library? http://stackoverflow.com/questions/178915/how-to-save-picture-to-iphone-photo-library
http://stackoverflow.com/questions/1861656/iphone-reachability-checking verify that we were giving away items that actually pertained to the movie. According to their usually vague agreement you aren't allowed to have sweepstakes otherwise. I would also think this adheres more strictly to their only use things if you absolutely need them ideaology as well. Here's the iTunes link to the application..
Difference between self.ivar and ivar? http://stackoverflow.com/questions/4142177/difference-between-self-ivar-and-ivar
iPhone different between self and normal variable http://stackoverflow.com/questions/536388/iphone-different-between-self-and-normal-variable in your .h file. I.e. if you specify retain the setter will retain the variable and if you specify copy it will copy it. The accessors will unless you specify otherwise be named propertyName and setPropertyName. Using the . notation note not the self syntax as stated above is saying that you want to use the accessors a good thing..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload orientation after uploading the image appears to be correct as displayed in an UIImageView directly after taking the picture but viewing on the server says otherwise. iphone cocoa touch ios share improve this question A UIImage has a property imageOrientation which instructs the UIImageView and other UIImage consumers to..
http://stackoverflow.com/questions/603907/uiimage-resize-then-crop please be kind enough to hold my hand Every code example I have found so far seems to smash the image be upside down look like crap draw out of bounds or otherwise just not work correctly. Thank you SO much for your help. iphone ios image processing core graphics share improve this question I needed the same thing in..
MKAnnotationView - Lock custom annotation view to pin on location updates http://stackoverflow.com/questions/6392931/mkannotationview-lock-custom-annotation-view-to-pin-on-location-updates 5 69 5 69 MKCoordinateRegion region coords span if we don't have a current location yet create one place it on the map and adjust the map's region otherwise update the annotation placement and map position in a smooth animation if self.currentLocationAnnotation nil self.currentLocationAnnotation CurrentLocationAnnotation..
Has anyone implemented the PayPal API through a native iPhone app? http://stackoverflow.com/questions/779423/has-anyone-implemented-the-paypal-api-through-a-native-iphone-app a native iPhone app It seems the only way to stay in app is to give them a UIWebView of the paypal mobile site and let them complete the transaction there otherwise the user would need to use their API key. Does this sound right and has anyone got or seen any sample code I have to think this is a common piece of code. UPDATE..
canonical way to randomize an NSArray in Objective C http://stackoverflow.com/questions/791232/canonical-way-to-randomize-an-nsarray-in-objective-c
How do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder make sure you fully understand how to set the AVAudioRecorder settings read carefully the audio types documentation otherwise you will never be able to initialize it correctly. One more thing. In the code I am not showing how to handle metering data..
What do I have to do to get Core Data to automatically migrate models? http://stackoverflow.com/questions/1018155/what-do-i-have-to-do-to-get-core-data-to-automatically-migrate-models This seems great and as simple as I wanted but I think you need to be careful during development as you change a model otherwise you will have to create a new version for each change. I think what I will do is that I will keep all of the changed files..
Where to place the “Core Data Stack” in a Cocoa/Cocoa Touch application http://stackoverflow.com/questions/1267520/where-to-place-the-core-data-stack-in-a-cocoa-cocoa-touch-application set of actions. The appropriate unit of currency for a view controller is therefore usually a managed object context otherwise a managed object. Using and passing a singleton object that manages a stack and from which you retrieve a context typically..
http://stackoverflow.com/questions/1309757/blend-two-uiimages
How to add a UIImage in MailComposer Sheet of MFMailComposeViewController http://stackoverflow.com/questions/1527351/how-to-add-a-uiimage-in-mailcomposer-sheet-of-mfmailcomposeviewcontroller @ p b img src 'data image png base64 @' b p base64String You could repeat here with more text or images otherwise close the HTML formatting emailBody appendString @ body html NSLog @ @ emailBody Create the mail composer window MFMailComposeViewController..
Disabling iPhone screenshot feature http://stackoverflow.com/questions/1586592/disabling-iphone-screenshot-feature
How to save picture to iPhone photo library? http://stackoverflow.com/questions/178915/how-to-save-picture-to-iphone-photo-library
http://stackoverflow.com/questions/1861656/iphone-reachability-checking actually pertained to the movie. According to their usually vague agreement you aren't allowed to have sweepstakes otherwise. I would also think this adheres more strictly to their only use things if you absolutely need them ideaology as well. Here's..
Crossplatform iPhone / Android code sharing http://stackoverflow.com/questions/2380258/crossplatform-iphone-android-code-sharing logic that needs to run on each device. Existing iPhone code base porting of C C and Objective C to the Android NDK or otherwise. Yes of course in a perfect world all apps would just plug into the magical cloud and all the reusable logic would be up..
Difference between self.ivar and ivar? http://stackoverflow.com/questions/4142177/difference-between-self-ivar-and-ivar
Drawing waveform with AVAssetReader http://stackoverflow.com/questions/5032775/drawing-waveform-with-avassetreader and normalizes the image to full scale . the images it creates are wide ie you need to put them in a UIScrollView or otherwise manage the display. this is based on some answers given to this question Sample Output EDIT I have added a logarithmic version..
Grand Central Dispatch (GCD) vs. performSelector - need a better explanation http://stackoverflow.com/questions/5225130/grand-central-dispatch-gcd-vs-performselector-need-a-better-explanation
What are the Dangers of Method Swizzling in Objective C? http://stackoverflow.com/questions/5339276/what-are-the-dangers-of-method-swizzling-in-objective-c you may cause problems to arise. In most cases the super class is expecting that method to be called unless documented otherwise . If you apply this same thought to swizzling you've covered most issues. Always call the original implementation. If you..
iPhone different between self and normal variable http://stackoverflow.com/questions/536388/iphone-different-between-self-and-normal-variable the setter will retain the variable and if you specify copy it will copy it. The accessors will unless you specify otherwise be named propertyName and setPropertyName. Using the . notation note not the self syntax as stated above is saying that..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload appears to be correct as displayed in an UIImageView directly after taking the picture but viewing on the server says otherwise. iphone cocoa touch ios share improve this question A UIImage has a property imageOrientation which instructs the UIImageView..
http://stackoverflow.com/questions/603907/uiimage-resize-then-crop Every code example I have found so far seems to smash the image be upside down look like crap draw out of bounds or otherwise just not work correctly. Thank you SO much for your help. iphone ios image processing core graphics share improve this..
MKAnnotationView - Lock custom annotation view to pin on location updates http://stackoverflow.com/questions/6392931/mkannotationview-lock-custom-annotation-view-to-pin-on-location-updates region coords span if we don't have a current location yet create one place it on the map and adjust the map's region otherwise update the annotation placement and map position in a smooth animation if self.currentLocationAnnotation nil self.currentLocationAnnotation..
learning iphone game development http://stackoverflow.com/questions/720901/learning-iphone-game-development iphone opengl es share improve this question I'd skip OpenGL until later I'd start off with a 2D game otherwise its likely overwhelming. Once you have a 2D game you'll understand the platform enough to move into a 3D game either with..
Has anyone implemented the PayPal API through a native iPhone app? http://stackoverflow.com/questions/779423/has-anyone-implemented-the-paypal-api-through-a-native-iphone-app way to stay in app is to give them a UIWebView of the paypal mobile site and let them complete the transaction there otherwise the user would need to use their API key. Does this sound right and has anyone got or seen any sample code I have to think..
canonical way to randomize an NSArray in Objective C http://stackoverflow.com/questions/791232/canonical-way-to-randomize-an-nsarray-in-objective-c
objective c - Detect when user change the app's notifications settings http://stackoverflow.com/questions/10191006/objective-c-detect-when-user-change-the-apps-notifications-settings threads about this exact issue. I was myself wondering if maybe Apple has removed the permission dialog in iOS 5.1. Otherwise why would they require the application to show the alert According to AppStore review guidelines 5.3 Apps that send Push..
http://stackoverflow.com/questions/1118400/speech-recognition this question The best open source speech recognition package I know of is Sphinx. http cmusphinx.sourceforge.net Otherwise I would suggest looking into Nuance software. Current speech recognition does well with a limited grammar set if you know..
Lazy load images in UITableView http://stackoverflow.com/questions/1130089/lazy-load-images-in-uitableview I tried getting the images in separate threads but I have to load each image every time a cell becomes visible again Otherwise reuse of cells shows old images . Can someone please tell me how to duplicate this behavior. iphone ios objective c uitableview..
How to save the content in UIWebView for faster loading on next launch? http://stackoverflow.com/questions/1343515/how-to-save-the-content-in-uiwebview-for-faster-loading-on-next-launch has been written on the FS for this request no cache then do the request on your side and store the content on FS. Otherwise return what has been previously cached. Create an instance of your subclass and set it to the system so that it is used..
How to use the first character as a section name http://stackoverflow.com/questions/1741093/how-to-use-the-first-character-as-a-section-name the fast index title scroller. In that case you would NOT display the section headers. See below for sample code. Otherwise I agree with refulgentis that a transient property is the best solution. Also when creating the NSFetchedResultsController.. the getter. If you are generating creating subclasses then you can add it in the subclass's implementation .m file. Otherwise you can create a category on NSManagedObject I put this right at the top of my view controller's implementation file but..
http://stackoverflow.com/questions/18736954/missing-recommended-icon-file-the-bundle-does-not-contain-an-app-icon-for-iph Store . I hope now you can submit your app without any icon issue. NOTE Be careful to provide all the icons you need. Otherwise your app will not pass Apple validation. If you 脎e received this kind of email Invalid Image For iOS applications icons..
iPhone - What are reuseIdentifiers (UITableViewCell)? http://stackoverflow.com/questions/2152180/iphone-what-are-reuseidentifiers-uitableviewcell different kinds of cells and in that case you'd have to keep them separate by providing different reuseIdentifiers. Otherwise you might end up getting a cell that you treat as some other kind of cell for example UITableView cell instead of the custom..
http://stackoverflow.com/questions/2247647/offset-on-uiwindow-addsubview Now what bugs me is that that I have to adjust the frame for the Test nib and only the Test nib to display correctly. Otherwise the view is below the status bar . void applicationDidFinishLaunching UIApplication application if condition UIViewController..
UITableView issue when using separate delegate/dataSource http://stackoverflow.com/questions/254354/uitableview-issue-when-using-separate-delegate-datasource Next thing is to add a reference to the TableTestTableViewController and retain it in the TableTestViewController . Otherwise your TableTestTableViewController may be released after loading the nib with nothing hanging on to it. and that is why you..
http://stackoverflow.com/questions/262156/uiimage-rounded-corners as a guide. if the image is wider than tall we'll figure out the scale factor by dividing it by the intended width. Otherwise we'll use the height. float widthFactor targetSize.width width float heightFactor targetSize.height height if widthFactor..
Can iPad/iPhone Touch Points be Wrong Due to Calibration? http://stackoverflow.com/questions/2733868/can-ipad-iphone-touch-points-be-wrong-due-to-calibration calibrated and mine is simply reporting Y values that are six pixels off. Can anyone verify that this is the case Otherwise is there anything else that could account for the Y values being six pixels off from what I expect In a few days I should..
Architectural and design question about uploading photos from iPhone app and S3 http://stackoverflow.com/questions/4481311/architectural-and-design-question-about-uploading-photos-from-iphone-app-and-s3 API requests sent to Amazon Web Services AWS in order to validate the identity of the AWS account making the request. Otherwise a malicious developer could easily make requests to another developer's infrastructure. The requests are signed using an..
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 will not be called automatically. If you override loadView you must set the viewController's view property. Otherwise the next call to view will trigger the loading process again. The view may also be unloaded at any time during the lifetime..
Lazy load images in UITableViewCell http://stackoverflow.com/questions/531482/lazy-load-images-in-uitableviewcell I tried getting the images in separate threads but I have to load each image every time a cell becomes visible again Otherwise reuse of cells shows old images Apps like Facebook load images only for cells currently visible and once the images are.. means that the image is missing from the cache and you need your background image loading thread to go retrieve it. Otherwise you will get back the appropriate image for your table cell to display. On a memory warning you could clear out this cache..
AES interoperability between .Net and iPhone? http://stackoverflow.com/questions/538435/aes-interoperability-between-net-and-iphone kList.Add kRaw i kRaw.Length byte k kList.ToArray return k which should probably be kList.Add kRaw i 8 kRaw.Length . Otherwise a key whose length 8 0 will use the same letter repeatedly doh Thus the IV and key used by .Net is hleolhleolhleolh . This..
http://stackoverflow.com/questions/5525436/xcode-could-not-find-a-valid-private-certificate-valid-key-pair-for-this-profile which lets you see the key and vice versa on the key page where you should see the certificate under the key . Otherwise the relationship is not correct not recognized by Keychain during import I have seen this in some cases when importing a..
Memory limit and iOS memory allocation in iphone SDK? http://stackoverflow.com/questions/6044147/memory-limit-and-ios-memory-allocation-in-iphone-sdk Blocks from separate memory allocations are not allocated contiguously separate calls to alloc malloc new etc. . Otherwise they are allocated contiguously from the same call to malloc ex. new float 30 . According to Apple your app risks being..
How to override -drawrect in UIButton subclass? http://stackoverflow.com/questions/816024/how-to-override-drawrect-in-uibutton-subclass
How to post more parameters with image upload code in iOS? http://stackoverflow.com/questions/10618056/how-to-post-more-parameters-with-image-upload-code-in-ios OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM DAMAGES OR OTHER LIABILITY WHETHER IN AN ACTION OF CONTRACT TORT OR OTHERWISE ARISING FROM OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. #import Foundation.. OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM DAMAGES OR OTHER LIABILITY WHETHER IN AN ACTION OF CONTRACT TORT OR OTHERWISE ARISING FROM OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. #import NetworkClient.h..
Tap pressure strength detection using accelerometer http://stackoverflow.com/questions/5179426/tap-pressure-strength-detection-using-accelerometer HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY WHETHER IN CONTRACT STRICT LIABILITY OR TORT INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #import UIKit UIKit.h.. HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY WHETHER IN CONTRACT STRICT LIABILITY OR TORT INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #import UIKit UIGestureRecognizerSubclass.h..
SFHFKeychainUtils. iOS keychain. ARC compatible http://stackoverflow.com/questions/7663443/sfhfkeychainutils-ios-keychain-arc-compatible OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM DAMAGES OR OTHER LIABILITY WHETHER IN AN ACTION OF CONTRACT TORT OR OTHERWISE ARISING FROM OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. #import UIKit UIKit.h.. OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM DAMAGES OR OTHER LIABILITY WHETHER IN AN ACTION OF CONTRACT TORT OR OTHERWISE ARISING FROM OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. #import SFHFKeychainUtils.h..
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