2014/10/15 下午 10:03:35
iphone Programming Glossary: alongDetect the specific iPhone/iPod touch model [duplicate] http://stackoverflow.com/questions/1108859/detect-the-specific-iphone-ipod-touch-model uses the following code to get the specific device model. You can find the whole category here along with other useful stuff https github.com erica uidevice extension #include sys types.h #include sys..
How would I tint an image programatically on the iPhone? http://stackoverflow.com/questions/1117211/how-would-i-tint-an-image-programatically-on-the-iphone want to draw the image first then overlay it with a rectangle filled with the color you want along with the proper blending mode something like this void drawRect CGRect area CGContextRef context UIGraphicsGetCurrentContext..
How can I animate the movement of a view or image along a curved path? http://stackoverflow.com/questions/1142727/how-can-i-animate-the-movement-of-a-view-or-image-along-a-curved-path can I animate the movement of a view or image along a curved path I am developing a commerce application. When I add an item to the shopping cart I want.. item follows a curved path and ends up at the cart tab. How can I create an animation of an image along a curve like this iphone objective c ios cocoa touch core animation share improve this question .. the best way to handle this is to use Core Animation to animate the motion of the image or view along a Bezier path. This is accomplished using a CAKeyframeAnimation. For example I've used the following..
http://stackoverflow.com/questions/1166444/mkmapview-zoom-and-region and setting a region on map. In Google Maps API I used to use integer zoom levels like 8 9 10 along with straightforward function setZoom . The only equivalent method I can see in the MapKit framework..
OpenGL ES iPhone - drawing anti aliased lines http://stackoverflow.com/questions/1813035/opengl-es-iphone-drawing-anti-aliased-lines this here http research.microsoft.com en us um people hoppe overdraw.pdf You could do something along this way Colors is a pointer to unsigned bytes 4 per color . Should alternate in opacity. glColorPointer..
http://stackoverflow.com/questions/18736954/missing-recommended-icon-file-the-bundle-does-not-contain-an-app-icon-for-iph of an image such as for multiple resolutions . We 耱l create one to manage both the Game 䏭 icons along with the Launch Images. Now click the Use Asset Catalog button. When confirming the migration you 胩e..
How do I change the Navigation Bar color in iOS 7? http://stackoverflow.com/questions/18929864/how-do-i-change-the-navigation-bar-color-in-ios-7 in a nav bar atop a view controller . All I want is to change the nav bar color to light blue along with the utility bar at the top. I can't seem to find an option in my storyboard . iphone ios xcode..
Difference between [UIImage imageNamed…] and [UIImage imageWithData…]? http://stackoverflow.com/questions/316236/difference-between-uiimage-imagenamed-and-uiimage-imagewithdata cases that's going to help with memory use. For example if you load an image 10 times to display along with some text in a table view UIImage will only keep a single representation of that image in memory..
Getting a list of files in a directory with a glob http://stackoverflow.com/questions/499673/getting-a-list-of-files-in-a-directory-with-a-glob a way to get a list of files with a glob for a given directory. I'm currently stuck with something along the lines of NSString bundleRoot NSBundle mainBundle bundlePath NSArray dirContents NSFileManager defaultManager..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices ObjectId DeviceId DeviceObjectId . Then when the device pushes up a change set it will pass along the device Id and the objectId from the core data object in the local data store. Then my cloud server..
Xcode 4: create IPA file instead of .xcarchive http://stackoverflow.com/questions/5265292/xcode-4-create-ipa-file-instead-of-xcarchive file with Xcode 4 iphone xcode xcode4 share improve this question Creating an IPA is done along the same way as creating an .xcarchive Product Archive. After the Archive operation completes go to..
Example or explanation of Core Data Migration with multiple passes? http://stackoverflow.com/questions/5995231/example-or-explanation-of-core-data-migration-with-multiple-passes . The goal is to transfer all Version 1 Events to the two new entities and convert the values along the migration. This results in twice the values each as a different type in a separate entitiy. To migrate..
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 out how to get this to happen without the user having to actually pinch to zoom. Original Post I along with other SO users are using this awesome solution to create a custom callout annotation http blog.asolutions.com.. and the pin moves around the screen as the location is updated the standard callout tracks right along with the pin as if they're locked together. When using the custom callout solution above when my pin.. Of course I'd like to mimic the iOS standard and have the custom callout annotation track along with the pin. Here's the code I have so far that's successfully moving the annotation view but not the..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c of the system crashing because you've freed memory they were using. Assuming everyone is playing along and retaining releasing according to the rules when one piece of code retains and then releases the..
http://stackoverflow.com/questions/675433/custom-colors-in-uitabbar is there any way to customize this Second even I were to create my own TabBar like view controller along with custom images would this violate Apple's Human Interface Guidelines iphone objective c share..
`[super viewDidLoad]` convention http://stackoverflow.com/questions/844195/super-viewdidload-convention
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 switch to ARC as soon as you can and never look back. EDIT I've seen a couple of comments along the lines of using ARC is no substitute for knowing the Cocoa memory management rules. This is mostly..
how to create iphone's wobbling icon effect? http://stackoverflow.com/questions/929364/how-to-create-iphones-wobbling-icon-effect its original state when done. Also note that you can use the beginAnimations context value to pass along anything to the start stop methods. In this case it's the wobbling object itself so you don't have to..
Detect the specific iPhone/iPod touch model [duplicate] http://stackoverflow.com/questions/1108859/detect-the-specific-iphone-ipod-touch-model it's created by Erica Sadun I don't take credit for it that uses the following code to get the specific device model. You can find the whole category here along with other useful stuff https github.com erica uidevice extension #include sys types.h #include sys sysctl.h @implementation UIDevice Hardware Platforms iPhone1..
How would I tint an image programatically on the iPhone? http://stackoverflow.com/questions/1117211/how-would-i-tint-an-image-programatically-on-the-iphone drawRect each time color changes In the drawRect method you'll want to draw the image first then overlay it with a rectangle filled with the color you want along with the proper blending mode something like this void drawRect CGRect area CGContextRef context UIGraphicsGetCurrentContext CGContextSaveGState context Draw picture..
How can I animate the movement of a view or image along a curved path? http://stackoverflow.com/questions/1142727/how-can-i-animate-the-movement-of-a-view-or-image-along-a-curved-path can I animate the movement of a view or image along a curved path I am developing a commerce application. When I add an item to the shopping cart I want to create an effect where an image of the item follows a curved.. cart I want to create an effect where an image of the item follows a curved path and ends up at the cart tab. How can I create an animation of an image along a curve like this iphone objective c ios cocoa touch core animation share improve this question To expand upon what Nikolai said the best way to handle this.. share improve this question To expand upon what Nikolai said the best way to handle this is to use Core Animation to animate the motion of the image or view along a Bezier path. This is accomplished using a CAKeyframeAnimation. For example I've used the following code to animate an image of a view into an icon to indicate..
http://stackoverflow.com/questions/1166444/mkmapview-zoom-and-region iphone project but I'm having a hard time to figure out zooming and setting a region on map. In Google Maps API I used to use integer zoom levels like 8 9 10 along with straightforward function setZoom . The only equivalent method I can see in the MapKit framework is setRegion animated. As I understand I need to set a region's..
OpenGL ES iPhone - drawing anti aliased lines http://stackoverflow.com/questions/1813035/opengl-es-iphone-drawing-anti-aliased-lines to explain Comparison with AA You can read a paper about this here http research.microsoft.com en us um people hoppe overdraw.pdf You could do something along this way Colors is a pointer to unsigned bytes 4 per color . Should alternate in opacity. glColorPointer 4 GL_UNSIGNED_BYTE 0 colors glEnableClientState GL_COLOR_ARRAY..
http://stackoverflow.com/questions/18736954/missing-recommended-icon-file-the-bundle-does-not-contain-an-app-icon-for-iph 5 introduces Asset Catalogs to simply managing multiple copies of an image such as for multiple resolutions . We 耱l create one to manage both the Game 䏭 icons along with the Launch Images. Now click the Use Asset Catalog button. When confirming the migration you 胩e also asked if you wish to migrate the Launch Images which is..
How do I change the Navigation Bar color in iOS 7? http://stackoverflow.com/questions/18929864/how-do-i-change-the-navigation-bar-color-in-ios-7 Twitter Nav Bar updated Twitter for iOS7 that is . I embedded in a nav bar atop a view controller . All I want is to change the nav bar color to light blue along with the utility bar at the top. I can't seem to find an option in my storyboard . iphone ios xcode ipad apple share improve this question The behavior of..
Difference between [UIImage imageNamed…] and [UIImage imageWithData…]? http://stackoverflow.com/questions/316236/difference-between-uiimage-imagenamed-and-uiimage-imagewithdata image. The imageNamed method does cache the image but in many cases that's going to help with memory use. For example if you load an image 10 times to display along with some text in a table view UIImage will only keep a single representation of that image in memory instead of allocating 10 separate objects. On the other hand..
Getting a list of files in a directory with a glob http://stackoverflow.com/questions/499673/getting-a-list-of-files-in-a-directory-with-a-glob a directory with a glob For some crazy reason I can't find a way to get a list of files with a glob for a given directory. I'm currently stuck with something along the lines of NSString bundleRoot NSBundle mainBundle bundlePath NSArray dirContents NSFileManager defaultManager directoryContentsAtPath bundleRoot ..and then..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices the ObjectId field will reference another table AllObjects ObjectId DeviceId DeviceObjectId . Then when the device pushes up a change set it will pass along the device Id and the objectId from the core data object in the local data store. Then my cloud server will check against the objectId and device Id in the AllObjects..
Xcode 4: create IPA file instead of .xcarchive http://stackoverflow.com/questions/5265292/xcode-4-create-ipa-file-instead-of-xcarchive application in an .xcarchive bundle. How can I create an .ipa file with Xcode 4 iphone xcode xcode4 share improve this question Creating an IPA is done along the same way as creating an .xcarchive Product Archive. After the Archive operation completes go to the Organizer select your archive select Share and in the Select..
Example or explanation of Core Data Migration with multiple passes? http://stackoverflow.com/questions/5995231/example-or-explanation-of-core-data-migration-with-multiple-passes double and the second one which should store a date as NSString . The goal is to transfer all Version 1 Events to the two new entities and convert the values along the migration. This results in twice the values each as a different type in a separate entitiy. To migrate we choose migration by hand and this we do with mapping..
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 correct position right over the pin. So now I need to figure out how to get this to happen without the user having to actually pinch to zoom. Original Post I along with other SO users are using this awesome solution to create a custom callout annotation http blog.asolutions.com 2010 09 building custom map annotation callouts.. you use a standard callout annotationview.canShowCallout true and the pin moves around the screen as the location is updated the standard callout tracks right along with the pin as if they're locked together. When using the custom callout solution above when my pin moves around after location updates the callout annotation.. updates the callout annotation stays in it's original location. Of course I'd like to mimic the iOS standard and have the custom callout annotation track along with the pin. Here's the code I have so far that's successfully moving the annotation view but not the custom callout annotation view core location broadcasts a..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c that any given object doesn't need to worry about other parts of the system crashing because you've freed memory they were using. Assuming everyone is playing along and retaining releasing according to the rules when one piece of code retains and then releases the object any other piece of code also referencing the object will..
http://stackoverflow.com/questions/675433/custom-colors-in-uitabbar like everyone to use the same blue and gray tab bars but is there any way to customize this Second even I were to create my own TabBar like view controller along with custom images would this violate Apple's Human Interface Guidelines iphone objective c share improve this question I found an answer to this at Silent..
`[super viewDidLoad]` convention http://stackoverflow.com/questions/844195/super-viewdidload-convention
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 ARC code into a separate xcodeproj to simplify this. In conclusion switch to ARC as soon as you can and never look back. EDIT I've seen a couple of comments along the lines of using ARC is no substitute for knowing the Cocoa memory management rules. This is mostly true but it's important to understand why and why not. First..
how to create iphone's wobbling icon effect? http://stackoverflow.com/questions/929364/how-to-create-iphones-wobbling-icon-effect I edited the response to add code to put the item back in its original state when done. Also note that you can use the beginAnimations context value to pass along anything to the start stop methods. In this case it's the wobbling object itself so you don't have to rely on specific ivars and the method can be used for any..
Detect the specific iPhone/iPod touch model [duplicate] http://stackoverflow.com/questions/1108859/detect-the-specific-iphone-ipod-touch-model take credit for it that uses the following code to get the specific device model. You can find the whole category here along with other useful stuff https github.com erica uidevice extension #include sys types.h #include sys sysctl.h @implementation..
How would I tint an image programatically on the iPhone? http://stackoverflow.com/questions/1117211/how-would-i-tint-an-image-programatically-on-the-iphone drawRect method you'll want to draw the image first then overlay it with a rectangle filled with the color you want along with the proper blending mode something like this void drawRect CGRect area CGContextRef context UIGraphicsGetCurrentContext..
How can I animate the movement of a view or image along a curved path? http://stackoverflow.com/questions/1142727/how-can-i-animate-the-movement-of-a-view-or-image-along-a-curved-path can I animate the movement of a view or image along a curved path I am developing a commerce application. When I add an item to the shopping cart I want to create an effect.. an image of the item follows a curved path and ends up at the cart tab. How can I create an animation of an image along a curve like this iphone objective c ios cocoa touch core animation share improve this question To expand upon what.. upon what Nikolai said the best way to handle this is to use Core Animation to animate the motion of the image or view along a Bezier path. This is accomplished using a CAKeyframeAnimation. For example I've used the following code to animate an..
http://stackoverflow.com/questions/1166444/mkmapview-zoom-and-region to figure out zooming and setting a region on map. In Google Maps API I used to use integer zoom levels like 8 9 10 along with straightforward function setZoom . The only equivalent method I can see in the MapKit framework is setRegion animated...
OpenGL ES iPhone - drawing anti aliased lines http://stackoverflow.com/questions/1813035/opengl-es-iphone-drawing-anti-aliased-lines can read a paper about this here http research.microsoft.com en us um people hoppe overdraw.pdf You could do something along this way Colors is a pointer to unsigned bytes 4 per color . Should alternate in opacity. glColorPointer 4 GL_UNSIGNED_BYTE..
http://stackoverflow.com/questions/18736954/missing-recommended-icon-file-the-bundle-does-not-contain-an-app-icon-for-iph multiple copies of an image such as for multiple resolutions . We 耱l create one to manage both the Game 䏭 icons along with the Launch Images. Now click the Use Asset Catalog button. When confirming the migration you 胩e also asked if you wish..
How do I change the Navigation Bar color in iOS 7? http://stackoverflow.com/questions/18929864/how-do-i-change-the-navigation-bar-color-in-ios-7 that is . I embedded in a nav bar atop a view controller . All I want is to change the nav bar color to light blue along with the utility bar at the top. I can't seem to find an option in my storyboard . iphone ios xcode ipad apple share..
Difference between [UIImage imageNamed…] and [UIImage imageWithData…]? http://stackoverflow.com/questions/316236/difference-between-uiimage-imagenamed-and-uiimage-imagewithdata the image but in many cases that's going to help with memory use. For example if you load an image 10 times to display along with some text in a table view UIImage will only keep a single representation of that image in memory instead of allocating..
Getting a list of files in a directory with a glob http://stackoverflow.com/questions/499673/getting-a-list-of-files-in-a-directory-with-a-glob reason I can't find a way to get a list of files with a glob for a given directory. I'm currently stuck with something along the lines of NSString bundleRoot NSBundle mainBundle bundlePath NSArray dirContents NSFileManager defaultManager directoryContentsAtPath..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices another table AllObjects ObjectId DeviceId DeviceObjectId . Then when the device pushes up a change set it will pass along the device Id and the objectId from the core data object in the local data store. Then my cloud server will check against..
Xcode 4: create IPA file instead of .xcarchive http://stackoverflow.com/questions/5265292/xcode-4-create-ipa-file-instead-of-xcarchive can I create an .ipa file with Xcode 4 iphone xcode xcode4 share improve this question Creating an IPA is done along the same way as creating an .xcarchive Product Archive. After the Archive operation completes go to the Organizer select..
Example or explanation of Core Data Migration with multiple passes? http://stackoverflow.com/questions/5995231/example-or-explanation-of-core-data-migration-with-multiple-passes store a date as NSString . The goal is to transfer all Version 1 Events to the two new entities and convert the values along the migration. This results in twice the values each as a different type in a separate entitiy. To migrate we choose migration..
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 now I need to figure out how to get this to happen without the user having to actually pinch to zoom. Original Post I along with other SO users are using this awesome solution to create a custom callout annotation http blog.asolutions.com 2010.. true and the pin moves around the screen as the location is updated the standard callout tracks right along with the pin as if they're locked together. When using the custom callout solution above when my pin moves around after.. in it's original location. Of course I'd like to mimic the iOS standard and have the custom callout annotation track along with the pin. Here's the code I have so far that's successfully moving the annotation view but not the custom callout annotation..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c about other parts of the system crashing because you've freed memory they were using. Assuming everyone is playing along and retaining releasing according to the rules when one piece of code retains and then releases the object any other piece..
http://stackoverflow.com/questions/675433/custom-colors-in-uitabbar gray tab bars but is there any way to customize this Second even I were to create my own TabBar like view controller along with custom images would this violate Apple's Human Interface Guidelines iphone objective c share improve this question..
`[super viewDidLoad]` convention http://stackoverflow.com/questions/844195/super-viewdidload-convention
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 simplify this. In conclusion switch to ARC as soon as you can and never look back. EDIT I've seen a couple of comments along the lines of using ARC is no substitute for knowing the Cocoa memory management rules. This is mostly true but it's important..
how to create iphone's wobbling icon effect? http://stackoverflow.com/questions/929364/how-to-create-iphones-wobbling-icon-effect the item back in its original state when done. Also note that you can use the beginAnimations context value to pass along anything to the start stop methods. In this case it's the wobbling object itself so you don't have to rely on specific ivars..
How to Fetch Data From a WebService in iPhone? http://stackoverflow.com/questions/1289192/how-to-fetch-data-from-a-webservice-in-iphone question To retrieve data from the webservice you can use NSURLRequest or NSMutableURLRequest Here is a reference Along with NSURLConnection ...where you can use methods such as sendSynchronousRequest returningResponse error or sendAsynchronousRequest..
Custom UITableViewCell Not Using .xib (Most Likely Because of Flaw in init Method) http://stackoverflow.com/questions/15591364/custom-uitableviewcell-not-using-xib-most-likely-because-of-flaw-in-init-metho it but I think I'm missing something because 1 It's not working and 2 There are a couple of things I'm confused on. Along with customizing the look of the .xib file I also changed the backgroundView and that part is working fine. The part that..
I need to inspect the view hierarchy on an iPhone program http://stackoverflow.com/questions/2343246/i-need-to-inspect-the-view-hierarchy-on-an-iphone-program structure on my iPhone program while running on the simulator iphone xcode debugging share improve this question Along the lines of what Yannick suggests Erica Sadun has code here that pretty prints the view hierarchy with class and frame..
Launching application in landscape orientation for IPad http://stackoverflow.com/questions/2947501/launching-application-in-landscape-orientation-for-ipad but when I start IPad application in the landscape mode it always start in the potrait mode. Along this BOOL shouldAutorotateToInterfaceOrientation UIInterfaceOrientation interfaceOrientation return YES help me if I am..
http://stackoverflow.com/questions/4048811/erase-using-brush-in-glpaint two parameter and does erase Any pointer will be very helpful. Thank you. iphone share improve this question Along the same vein as Erase using brush in GLPaint you could reuse the void renderLineFromPoint CGPoint start toPoint CGPoint..
iPhone Get UIImagePickerController Lat/Lng http://stackoverflow.com/questions/6177606/iphone-get-uiimagepickercontroller-lat-lng Lat Lng I'm using the UIImagePickerController to take a photo and then upload the photo to a WCF Service. Along with the image I also need to send to the latitude and longitude of the photo. How can I get hold of this information from..
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