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2014/10/15 ¤U¤È 10:03:35
iphone Programming Glossary: anHow to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk to check for an active Internet Connection on iPhone SDK I would like to check to see if I have an Internet connection.. to check for an active Internet Connection on iPhone SDK I would like to check to see if I have an Internet connection on the iPhone using the Cocoa Touch libraries. I came up with a way to do this using.. connection on the iPhone using the Cocoa Touch libraries. I came up with a way to do this using an NSURL . The way I did it seems a bit unreliable because even Google could one day be down and relying..
How do I associate file types with an iPhone application? http://stackoverflow.com/questions/2774343/how-do-i-associate-file-types-with-an-iphone-application do I associate file types with an iPhone application On the subject of associating your iPhone app with file types. In this informative.. I learned that apps could be associated with custom URL protocols. That was almost one year ago and since then Apple introduced 'Document Support' which goes a step further and allows apps to associate.. almost one year ago and since then Apple introduced 'Document Support' which goes a step further and allows apps to associate with file types. There is a lot of talk in the documentation about how to..
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 I embed a custom font in an iPhone application I would like to have an app include a custom font for.. I embed a custom font in an iPhone application I would like to have an app include a custom font for rendering text load it and.. I embed a custom font in an iPhone application I would like to have an app include a custom font for rendering text load it and then use it with standard UIKit elements like..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c do I create delegates in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share.. do I create delegates in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question.. ios objective c cocoa delegates share improve this question An Objective C delegate is just an object that has been assigned as a delegate of another. There's no special process for creating them..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now Now It has just come to light that the UIDevice uniqueIdentifier property is deprecated in iOS 5 and above. No alternative method or property appears to be available or forthcoming. Many of our existing.. in iOS 5 and above. No alternative method or property appears to be available or forthcoming. Many of our existing apps are tightly dependent on this property for uniquely identifying a particular device... apps are tightly dependent on this property for uniquely identifying a particular device. Can anyone suggest any ideas how we might handle this problem going forward The suggestion from the documentation..
Difference between objectForKey and valueForKey? http://stackoverflow.com/questions/1062183/difference-between-objectforkey-and-valueforkey key value coding share improve this question objectForKey is an NSDictionary method. An NSDictionary is a collection class similar to an NSArray except instead of using indexes it uses keys..
How to install iPhone application in iPhone Simulator http://stackoverflow.com/questions/1187611/how-to-install-iphone-application-in-iphone-simulator Simulator which can be used for such purposes. The one you are looking for is SimulateApplication An example command line starting up YourFavouriteApp Developer Platforms iPhoneSimulator.platform Developer..
How can I upload a photo to a server with the iPhone? http://stackoverflow.com/questions/125306/how-can-i-upload-a-photo-to-a-server-with-the-iphone Initializer. Kicks off the upload. Note that upload will happen on a separate thread. Results An instance of Uploader. Side effects None id initWithURL NSURL aServerURL IN filePath NSString aFilePath..
Declaration/definition of variables locations in ObjectiveC? http://stackoverflow.com/questions/12632285/declaration-definition-of-variables-locations-in-objectivec variable you can now do that in the implementation file as well and this is the preferred way. An @interface block in the implementation file is actually an Extension and can be used to forward declare..
Get to UIViewController from UIView on iPhone? http://stackoverflow.com/questions/1340434/get-to-uiviewcontroller-from-uiview-on-iphone controller the recommended way and what Apple does across Cocoa is to use the delegate pattern. An example of how to implement it follows @protocol MyViewDelegate NSObject void viewActionHappened @end..
http://stackoverflow.com/questions/1349740/arguments-in-selector using a selector requires the format of the method being void timerFireMethod NSTimer theTimer An NSInvocation allows you to set the target the selector and the arguments that you pass in SEL selector..
iPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew image transform stretch share improve this question Not possible with CGAffineTransform. An affine transform can always be decomposed into translations rotations shearing and scaling. They all.. it can be done in two steps. One to convert the square into a trapezoid. p1 p2 p1 p2 p3 p4 p3 p4' Another to the vertical direction. A naive transformation rule is y c x' x p1.x ”——————†p1.x p1.y..
http://stackoverflow.com/questions/402/iphone-app-in-landscape-mode Builder. iphone objective c share improve this question Exciting news As discovered by Andrew below This problem has been fixed by Apple in 4.0 . Here is a FULL TEST PROJECT you can download.. properly everywhere it means everywhere all your fullscreen views. Hope it helps in this nightmare An important reminder of the ADDITIONAL well known problem at hand here if you are trying to swap between.. In other words in iOS because of a major know bug window addSubview happyThing.view window makeKeyAndVisible You can do that only once . Later if you try to remove happyThing.view and instead put in there..
http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview method with two parameters image and maskImage these you have to set when you call the method. An example call could look like this assuming the method is in the same class and the pictures are in your..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c But how do I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate is just an object that has been assigned as a delegate of another. There's no special.. their methods somewhere. There are two basic approaches discussed in the Apple Docs on protocols 1 An Informal Protocol This can be done as NSWindow does in a category on NSObject. For example continuing.. would have to adopt this protocol @interface MyDelegate NSWindowNotifications ... @end And then implement the methods in the protocol. For methods declared in the protocol as @optional like..
Store orientation to an array - and compare http://stackoverflow.com/questions/6368618/store-orientation-to-an-array-and-compare the following I want the user to be able to record the movement of the iPhone using the gyroscope. And after that the user should be able to replicate the same movement. I extract the pitch roll and yaw.. I'm thinking that I could store these values into an array if the user is in record mode. And when the user tries to replicate that movement I'm could compare the replicated movement array to the.. and roll. Simply put don't and another reason not to . Can you use the accelerometer data instead An accelerometer is a direct measurement of orientation from the DCM manuscript and that is what you need...
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons it's mixed ARC non ARC then there's a mismatch. ARC will leak memory during ObjC exception throws. An ObjC exception should be very close in time to the termination of your program. If you're catching a.. with Core Foundation and every intermediate programmer needs to deal with CF at some point. And you need to know the rules for mixed ARC MRC code. And you need to know the rules when you start messing.. needs to deal with CF at some point. And you need to know the rules for mixed ARC MRC code. And you need to know the rules when you start messing around with void pointers to id which you continue..
How to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk to check for an active Internet Connection on iPhone SDK I would like to check to see if I have an Internet connection on the iPhone using the Cocoa Touch libraries. I came up.. to check for an active Internet Connection on iPhone SDK I would like to check to see if I have an Internet connection on the iPhone using the Cocoa Touch libraries. I came up with a way to do this using an NSURL . The way I did it seems a bit unreliable because.. iPhone SDK I would like to check to see if I have an Internet connection on the iPhone using the Cocoa Touch libraries. I came up with a way to do this using an NSURL . The way I did it seems a bit unreliable because even Google could one day be down and relying on a 3rd party seems bad and while I could check to see for..
How do I associate file types with an iPhone application? http://stackoverflow.com/questions/2774343/how-do-i-associate-file-types-with-an-iphone-application do I associate file types with an iPhone application On the subject of associating your iPhone app with file types. In this informative question I learned that apps could be associated with custom.. your iPhone app with file types. In this informative question I learned that apps could be associated with custom URL protocols. That was almost one year ago and since then Apple introduced 'Document Support' which goes a step further and allows apps to associate with file types. There is a lot of talk in the documentation.. apps could be associated with custom URL protocols. That was almost one year ago and since then Apple introduced 'Document Support' which goes a step further and allows apps to associate with file types. There is a lot of talk in the documentation about how to set up your app to launch other appropriate apps when it encounters..
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 I embed a custom font in an iPhone application I would like to have an app include a custom font for rendering text load it and then use it with standard UIKit.. I embed a custom font in an iPhone application I would like to have an app include a custom font for rendering text load it and then use it with standard UIKit elements like UILabel. Is this.. I embed a custom font in an iPhone application I would like to have an app include a custom font for rendering text load it and then use it with standard UIKit elements like UILabel. Is this possible I found these links http discussions.apple.com..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c do I create delegates in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate is just an.. do I create delegates in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate is just an object that has been.. I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate is just an object that has been assigned as a delegate of another. There's no special process for creating them you simply define a class that implements the delegate methods..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now uniqueIdentifier Deprecated What To Do Now It has just come to light that the UIDevice uniqueIdentifier property is deprecated in iOS 5 and above. No alternative method or property appears to be available or forthcoming. Many of our existing apps are tightly dependent on this property for uniquely.. light that the UIDevice uniqueIdentifier property is deprecated in iOS 5 and above. No alternative method or property appears to be available or forthcoming. Many of our existing apps are tightly dependent on this property for uniquely identifying a particular device. Can anyone suggest any ideas how we might handle this.. appears to be available or forthcoming. Many of our existing apps are tightly dependent on this property for uniquely identifying a particular device. Can anyone suggest any ideas how we might handle this problem going forward The suggestion from the documentation is... Special Considerations Do not use the uniqueIdentifier..
Difference between objectForKey and valueForKey? http://stackoverflow.com/questions/1062183/difference-between-objectforkey-and-valueforkey they seemed the same to me. iphone objective c cocoa nsdictionary key value coding share improve this question objectForKey is an NSDictionary method. An NSDictionary is a collection class similar to an NSArray except instead of using indexes it uses keys to differentiate between items. A key is an arbitrary string..
How to install iPhone application in iPhone Simulator http://stackoverflow.com/questions/1187611/how-to-install-iphone-application-in-iphone-simulator There are undocumented command line parameters for the iOS Simulator which can be used for such purposes. The one you are looking for is SimulateApplication An example command line starting up YourFavouriteApp Developer Platforms iPhoneSimulator.platform Developer Applications iPhone Simulator.app Contents MacOS iPhone..
How can I upload a photo to a server with the iPhone? http://stackoverflow.com/questions/125306/how-can-i-upload-a-photo-to-a-server-with-the-iphone initWithURL filePath delegate doneSelector errorSelector Initializer. Kicks off the upload. Note that upload will happen on a separate thread. Results An instance of Uploader. Side effects None id initWithURL NSURL aServerURL IN filePath NSString aFilePath IN delegate id aDelegate IN doneSelector SEL aDoneSelector..
Declaration/definition of variables locations in ObjectiveC? http://stackoverflow.com/questions/12632285/declaration-definition-of-variables-locations-in-objectivec to do that and not declare a property is to create a private variable you can now do that in the implementation file as well and this is the preferred way. An @interface block in the implementation file is actually an Extension and can be used to forward declare methods not needed anymore and to re declare properties...
Get to UIViewController from UIView on iPhone? http://stackoverflow.com/questions/1340434/get-to-uiviewcontroller-from-uiview-on-iphone Should you need the view to interface in a way with the view controller the recommended way and what Apple does across Cocoa is to use the delegate pattern. An example of how to implement it follows @protocol MyViewDelegate NSObject void viewActionHappened @end @interface MyView UIView @property nonatomic assign MyViewDelegate..
http://stackoverflow.com/questions/1349740/arguments-in-selector action turned into an object. Whilst creating an NSTimer object using a selector requires the format of the method being void timerFireMethod NSTimer theTimer An NSInvocation allows you to set the target the selector and the arguments that you pass in SEL selector @selector myMethod setValue2 NSMethodSignature signature..
iPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew the answer please write a sample code. Thanks in advance iphone image transform stretch share improve this question Not possible with CGAffineTransform. An affine transform can always be decomposed into translations rotations shearing and scaling. They all map parallelograms into parallelograms which your transform.. which your transform does not. For your transform it can be done in two steps. One to convert the square into a trapezoid. p1 p2 p1 p2 p3 p4 p3 p4' Another to the vertical direction. A naive transformation rule is y c x' x p1.x ”——————†p1.x p1.y c y' y where c is the y coordinate of the intersection point..
http://stackoverflow.com/questions/402/iphone-app-in-landscape-mode of the device Both programmatically and using the Interface Builder. iphone objective c share improve this question Exciting news As discovered by Andrew below This problem has been fixed by Apple in 4.0 . Here is a FULL TEST PROJECT you can download that shows it working correctly in a Landscape only iPad app... and you need to use shouldAutorotateToInterfaceOrientation properly everywhere it means everywhere all your fullscreen views. Hope it helps in this nightmare An important reminder of the ADDITIONAL well known problem at hand here if you are trying to swap between MORE THAN ONE view all landscape IT SIMPLY DOES NOT WORK.. nothing but sit there and let you swap between your views. In other words in iOS because of a major know bug window addSubview happyThing.view window makeKeyAndVisible You can do that only once . Later if you try to remove happyThing.view and instead put in there newThing.view IT DOES NOT WORK AND THAT'S THAT. The machine..
http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview mask share improve this question The tutorial uses this method with two parameters image and maskImage these you have to set when you call the method. An example call could look like this assuming the method is in the same class and the pictures are in your bundle Note amazingly the images do not even have to be..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate is just an object that has been assigned as a delegate of another. There's no special process for creating them you simply define a class that.. To define your own delegates you'll have to declare their methods somewhere. There are two basic approaches discussed in the Apple Docs on protocols 1 An Informal Protocol This can be done as NSWindow does in a category on NSObject. For example continuing the example above this is paraphrased from NSWindow.h @interface.. your delegate NSWindowNotifications in this case. Delegate implementors would have to adopt this protocol @interface MyDelegate NSWindowNotifications ... @end And then implement the methods in the protocol. For methods declared in the protocol as @optional like most delegate methods you still need to check with respondsToSelector..
Store orientation to an array - and compare http://stackoverflow.com/questions/6368618/store-orientation-to-an-array-and-compare orientation to an array and compare I want to achieve the following I want the user to be able to record the movement of the iPhone using the gyroscope. And after that the user should be able to replicate the same movement. I extract the pitch roll and yaw using self.motionManager startDeviceMotionUpdatesToQueue NSOperationQueue.. @ pitch f roll f yaw f attitude.pitch attitude.roll attitude.yaw I'm thinking that I could store these values into an array if the user is in record mode. And when the user tries to replicate that movement I'm could compare the replicated movement array to the recorded one. The thing is how can I compare the two arrays.. further details too. I just noticed you are using yaw pitch and roll. Simply put don't and another reason not to . Can you use the accelerometer data instead An accelerometer is a direct measurement of orientation from the DCM manuscript and that is what you need. And as for tc's question does the orientation relative to..
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons because it will do it the same wrong on both sides. But if it's mixed ARC non ARC then there's a mismatch. ARC will leak memory during ObjC exception throws. An ObjC exception should be very close in time to the termination of your program. If you're catching a significant number of ObjC exceptions you're using them incorrectly... You need to know the rules in order to bridge correctly with Core Foundation and every intermediate programmer needs to deal with CF at some point. And you need to know the rules for mixed ARC MRC code. And you need to know the rules when you start messing around with void pointers to id which you continue to.. correctly with Core Foundation and every intermediate programmer needs to deal with CF at some point. And you need to know the rules for mixed ARC MRC code. And you need to know the rules when you start messing around with void pointers to id which you continue to need to perform KVO correctly . And blocks... well block..
How to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk to check for an active Internet Connection on iPhone SDK I would like to check to see if I have an Internet connection on the iPhone using.. to check for an active Internet Connection on iPhone SDK I would like to check to see if I have an Internet connection on the iPhone using the Cocoa Touch libraries. I came up with a way to do this using an NSURL . The.. if I have an Internet connection on the iPhone using the Cocoa Touch libraries. I came up with a way to do this using an NSURL . The way I did it seems a bit unreliable because even Google could one day be down and relying on a 3rd party seems..
How do I associate file types with an iPhone application? http://stackoverflow.com/questions/2774343/how-do-i-associate-file-types-with-an-iphone-application do I associate file types with an iPhone application On the subject of associating your iPhone app with file types. In this informative question I learned.. informative question I learned that apps could be associated with custom URL protocols. That was almost one year ago and since then Apple introduced 'Document Support' which goes a step further and allows apps to associate with file types... protocols. That was almost one year ago and since then Apple introduced 'Document Support' which goes a step further and allows apps to associate with file types. There is a lot of talk in the documentation about how to set up your app to launch..
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 I embed a custom font in an iPhone application I would like to have an app include a custom font for rendering text load.. I embed a custom font in an iPhone application I would like to have an app include a custom font for rendering text load it and then use it with standard.. I embed a custom font in an iPhone application I would like to have an app include a custom font for rendering text load it and then use it with standard UIKit elements like UILabel. Is this..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c do I create delegates in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question.. do I create delegates in Objective C I know how delegates work and I know how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question An Objective.. I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate is just an object that has been assigned as a delegate of another. There's no special process for creating them you simply define a..
UIDevice uniqueIdentifier Deprecated - What To Do Now? http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now What To Do Now It has just come to light that the UIDevice uniqueIdentifier property is deprecated in iOS 5 and above. No alternative method or property appears to be available or forthcoming. Many of our existing apps are tightly.. property is deprecated in iOS 5 and above. No alternative method or property appears to be available or forthcoming. Many of our existing apps are tightly dependent on this property for uniquely identifying a particular device. Can anyone suggest.. Many of our existing apps are tightly dependent on this property for uniquely identifying a particular device. Can anyone suggest any ideas how we might handle this problem going forward The suggestion from the documentation is... Special..
Difference between objectForKey and valueForKey? http://stackoverflow.com/questions/1062183/difference-between-objectforkey-and-valueforkey c cocoa nsdictionary key value coding share improve this question objectForKey is an NSDictionary method. An NSDictionary is a collection class similar to an NSArray except instead of using indexes it uses keys to differentiate between..
How to install iPhone application in iPhone Simulator http://stackoverflow.com/questions/1187611/how-to-install-iphone-application-in-iphone-simulator for the iOS Simulator which can be used for such purposes. The one you are looking for is SimulateApplication An example command line starting up YourFavouriteApp Developer Platforms iPhoneSimulator.platform Developer Applications iPhone..
http://stackoverflow.com/questions/1225514/making-an-emoji-enabeling-app An Emoji Enabeling App I know they sell a lot of apps in the app store that claim to unlock emoji keyboards. Do you know how..
How can I upload a photo to a server with the iPhone? http://stackoverflow.com/questions/125306/how-can-i-upload-a-photo-to-a-server-with-the-iphone errorSelector Initializer. Kicks off the upload. Note that upload will happen on a separate thread. Results An instance of Uploader. Side effects None id initWithURL NSURL aServerURL IN filePath NSString aFilePath IN delegate..
Declaration/definition of variables locations in ObjectiveC? http://stackoverflow.com/questions/12632285/declaration-definition-of-variables-locations-in-objectivec is to create a private variable you can now do that in the implementation file as well and this is the preferred way. An @interface block in the implementation file is actually an Extension and can be used to forward declare methods not needed..
Get to UIViewController from UIView on iPhone? http://stackoverflow.com/questions/1340434/get-to-uiviewcontroller-from-uiview-on-iphone in a way with the view controller the recommended way and what Apple does across Cocoa is to use the delegate pattern. An example of how to implement it follows @protocol MyViewDelegate NSObject void viewActionHappened @end @interface MyView..
http://stackoverflow.com/questions/1349740/arguments-in-selector an NSTimer object using a selector requires the format of the method being void timerFireMethod NSTimer theTimer An NSInvocation allows you to set the target the selector and the arguments that you pass in SEL selector @selector myMethod..
How to get UIImage from EAGLView? http://stackoverflow.com/questions/1352864/how-to-get-uiimage-from-eaglview to get UIImage from EAGLView I am trying to get a UIImage from what is displayed in my EAGLView. Any suggestions on how to do this iphone uikit uiview opengl es eaglview share improve this question An EAGLView is just.. my EAGLView. Any suggestions on how to do this iphone uikit uiview opengl es eaglview share improve this question An EAGLView is just a kind of view and its underlying CAEAGLLayer is just a kind of layer. That means that the standard approach..
iOS: Open Source VoIP/SIP Objective-C Code http://stackoverflow.com/questions/1493050/ios-open-source-voip-sip-objective-c-code coded anything close to VoIP before. Are there any open source VoIP SIP libraries or examples in C or Objective C An iOS App that I can skin and add our required features to mainly UI related would be the holy grail here. iphone objective..
iPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew Thanks in advance iphone image transform stretch share improve this question Not possible with CGAffineTransform. An affine transform can always be decomposed into translations rotations shearing and scaling. They all map parallelograms.. For your transform it can be done in two steps. One to convert the square into a trapezoid. p1 p2 p1 p2 p3 p4 p3 p4' Another to the vertical direction. A naive transformation rule is y c x' x p1.x ”——————†p1.x p1.y c y' y where c is..
Orientation in a UIView added to a UIWindow http://stackoverflow.com/questions/2508630/orientation-in-a-uiview-added-to-a-uiwindow I haven't been able to figure out is why the subview is still in portrait mode even though the device is in landscape. An illustration below I do have a navigation controller but this view has been added to the UIWindow directly. iphone uiview..
iPad/iPhone browser crashing when loading images in Javascript http://stackoverflow.com/questions/2986039/ipad-iphone-browser-crashing-when-loading-images-in-javascript and halt all JS exectution. But after resetting src I ve been able to load in instances of the image over 170 times. An explanation of how the code works is below as well. var strImagePath http path to your gigantic image.jpg var arrImages.. 1 i 0 i imgStoredImage arrImages i if imgStoredImage imgActiveImage imgStoredImage.src strNullImage var waitAndReload function this.onload null setTimeout loadNextImage 2500 var loadNextImage function var imgImage new Image imgImage.onload.. this.onload null setTimeout loadNextImage 2500 var loadNextImage function var imgImage new Image imgImage.onload waitAndReload document.body.appendChild imgImage imgImage.src strImagePath Math.random 9007199254740992 imgActiveImage imgImage..
http://stackoverflow.com/questions/402/iphone-app-in-landscape-mode and using the Interface Builder. iphone objective c share improve this question Exciting news As discovered by Andrew below This problem has been fixed by Apple in 4.0 . Here is a FULL TEST PROJECT you can download that shows it working.. properly everywhere it means everywhere all your fullscreen views. Hope it helps in this nightmare An important reminder of the ADDITIONAL well known problem at hand here if you are trying to swap between MORE THAN ONE view.. between your views. In other words in iOS because of a major know bug window addSubview happyThing.view window makeKeyAndVisible You can do that only once . Later if you try to remove happyThing.view and instead put in there newThing.view IT..
Drawing waveform with AVAssetReader http://stackoverflow.com/questions/5032775/drawing-waveform-with-avassetreader songTrack songAsset.tracks objectAtIndex 0 NSDictionary outputSettingsDict NSDictionary alloc initWithObjectsAndKeys NSNumber numberWithInt kAudioFormatLinearPCM AVFormatIDKey NSNumber numberWithInt 44100.0 AVSampleRateKey Not.. completionBlock result waveFormData release assetPictogramFilepath release assetFileURL release return nil An example of invoking this void importMediaItem MPMediaItem item self mediaItem since we will be needing this for playback.. songTrack songAsset.tracks objectAtIndex 0 NSDictionary outputSettingsDict NSDictionary alloc initWithObjectsAndKeys NSNumber numberWithInt kAudioFormatLinearPCM AVFormatIDKey NSNumber numberWithInt 44100.0 AVSampleRateKey Not..
http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview The tutorial uses this method with two parameters image and maskImage these you have to set when you call the method. An example call could look like this assuming the method is in the same class and the pictures are in your bundle Note amazingly..
How do I create delegates in Objective-C? http://stackoverflow.com/questions/626898/how-do-i-create-delegates-in-objective-c how I can use them. But how do I create them iphone ios objective c cocoa delegates share improve this question An Objective C delegate is just an object that has been assigned as a delegate of another. There's no special process for creating.. have to declare their methods somewhere. There are two basic approaches discussed in the Apple Docs on protocols 1 An Informal Protocol This can be done as NSWindow does in a category on NSObject. For example continuing the example above.. case. Delegate implementors would have to adopt this protocol @interface MyDelegate NSWindowNotifications ... @end And then implement the methods in the protocol. For methods declared in the protocol as @optional like most delegate methods..
Store orientation to an array - and compare http://stackoverflow.com/questions/6368618/store-orientation-to-an-array-and-compare I want to achieve the following I want the user to be able to record the movement of the iPhone using the gyroscope. And after that the user should be able to replicate the same movement. I extract the pitch roll and yaw using self.motionManager.. attitude.roll attitude.yaw I'm thinking that I could store these values into an array if the user is in record mode. And when the user tries to replicate that movement I'm could compare the replicated movement array to the recorded one. The.. are using yaw pitch and roll. Simply put don't and another reason not to . Can you use the accelerometer data instead An accelerometer is a direct measurement of orientation from the DCM manuscript and that is what you need. And as for tc's..
Save An Image To Application Documents Folder From UIView On IOS http://stackoverflow.com/questions/6821517/save-an-image-to-application-documents-folder-from-uiview-on-ios An Image To Application Documents Folder From UIView On IOS I have a UIImageView that allows a user to place and hold an image.. UIImage image editingInfo NSDictionary editingInfo myPic.image image picker dismissModalViewControllerAnimated YES It displays the selected image in my UIImageView just fine but I have no idea how to save it. I'm saving all the.. be able to retrieve it and place it in another UIImageView for display when the user pushes that view onto the stack. Any help is greatly appreciated iphone uiimageview save share improve this question It's all good man. Don't harm yourself..
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons both sides. But if it's mixed ARC non ARC then there's a mismatch. ARC will leak memory during ObjC exception throws. An ObjC exception should be very close in time to the termination of your program. If you're catching a significant number.. order to bridge correctly with Core Foundation and every intermediate programmer needs to deal with CF at some point. And you need to know the rules for mixed ARC MRC code. And you need to know the rules when you start messing around with void.. intermediate programmer needs to deal with CF at some point. And you need to know the rules for mixed ARC MRC code. And you need to know the rules when you start messing around with void pointers to id which you continue to need to perform..
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 shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR.. be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE.. THE SOFTWARE IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT..
OpenGL ES (iPhone) Touch Picking http://stackoverflow.com/questions/2231433/opengl-es-iphone-touch-picking 2008 10 opengl es picking using ray boundingbox.html . . .but I'm not there yet. This also reeks of THERE MUST BE AN EASIER WAY Here is some code void handleTouch CGPoint point GLfloat width backingWidth GLfloat height backingHeight GLfloat..
SFHFKeychainUtils. iOS keychain. ARC compatible http://stackoverflow.com/questions/7663443/sfhfkeychainutils-ios-keychain-arc-compatible shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR.. be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE.. THE SOFTWARE IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT..
Drawing Smooth Curves - Methods Needed http://stackoverflow.com/questions/8702696/drawing-smooth-curves-methods-needed This was my code for the UIBezierPath which left edges at intersection UPDATED TO AN ANSWER BELOW #define VALUE _INDEX_ NSValue valueWithCGPoint points _INDEX_ #define POINT _INDEX_ NSValue points objectAtIndex.. This was my code for the UIBezierPath which left edges at intersection UPDATED TO AN ANSWER BELOW #define VALUE _INDEX_ NSValue valueWithCGPoint points _INDEX_ #define POINT _INDEX_ NSValue points objectAtIndex..
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