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2014/10/15 ¤U¤È 10:07:55
iphone Programming Glossary: easilyHow do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder One more thing. In the code I am not showing how to handle metering data but you can figure it out easily. Finally note that the AVAudioRecorder method deleteRecording as of this writing crashes your application...
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone super motionEnded motion withEvent event BOOL canBecomeFirstResponder return YES @end You can easily transform any UIView even system views into a view that can get the shake event simply by subclassing..
How to scale a UIImageView proportionally? http://stackoverflow.com/questions/185652/how-to-scale-a-uiimageview-proportionally do I correct the position iphone objective c cocoa touch share improve this question Fixed easily once I found the documentation imageView.contentMode UIViewContentModeScaleAspectFit share improve..
Expand/collapse section in UITableView http://stackoverflow.com/questions/1938921/expand-collapse-section-in-uitableview or the headers that are on there now would probably be a huge pain and I'm not sure you can easily get actions out of them the way they work now. You could easily set up a cell to LOOK like a header.. huge pain and I'm not sure you can easily get actions out of them the way they work now. You could easily set up a cell to LOOK like a header and setup the tableView didSelectRowAtIndexPath to expand or collapse..
JSON and Core Data on the iPhone http://stackoverflow.com/questions/2362323/json-and-core-data-on-the-iphone withManagedObjectContext moc return objectArray autorelease Now this is recursive so you can easily end up translating your entire persistent store if you are not careful. Watch your relationships and..
http://stackoverflow.com/questions/2496554/easiest-way-to-support-multiple-orientations-how-do-i-load-a-custom-nib-when-th you query but rather part of the messages sent the controller by the system. As such you cannot easily detect orientation before a view controller loads. Instead you hardwire the app to start in a particular..
Popover with embedded navigation controller doesn't respect size on back nav http://stackoverflow.com/questions/2752394/popover-with-embedded-navigation-controller-doesnt-respect-size-on-back-nav will change its size accordingly when you will navigate back between the controllers. You could easily create category on UIViewController with the following helper method that would do the trick with setting..
Adding view on StatusBar in iPhone http://stackoverflow.com/questions/2833724/adding-view-on-statusbar-in-iphone it on top of the status bar. iphone uikit uiapplication share improve this question You can easily accomplish this by creating your own window above the existing status bar. Just create a simple subclass..
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 hints There has been many Questions recently about drawing PDF's. Yes you can render PDF's very easily with a UIWebView but this cant give the performance and functionality that you would expect from a good..
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 iphone objective c cocoa cocoa touch share improve this question You can achieve this pretty easily with the help of NSPredicate like so NSString bundleRoot NSBundle mainBundle bundlePath NSFileManager..
Can I use CGAffineTransformMakeRotation to rotate a view more than 360 degrees? http://stackoverflow.com/questions/542739/can-i-use-cgaffinetransformmakerotation-to-rotate-a-view-more-than-360-degrees the following code will spin a view once per second for a specified number of seconds. You can easily modify it to spin a view by a certain number of rotations or by some number of radians. void runSpinAnimationWithDuration..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers have multiple viewcontroller communication what am I to do Ok that's the set up gang. I know I can easily do my communication methods in the app delegate by reference's the multiple viewcontroller instances.. Stanford presenters are coming from i.e. as Apple employees their job is to build classes that can easily be reused reusability and modularity are high priorities. All of the best practices they mention for.. is that you can give me your BookPickerViewController class and related GUI view objects and I can easily use it in my own application assuming BookWarehouse and CheckoutController are generic interfaces i.e...
Replace multiple characters in a string in Objective-C? http://stackoverflow.com/questions/713918/replace-multiple-characters-in-a-string-in-objective-c ...to replace all instances of the characters . with a blank string to remove them Can I do this easily in Objective C Or do I have to roll my own Currently I am doing multiple calls to stringByReplacingOccurrencesOfString..
Property vs. instance variable http://stackoverflow.com/questions/719788/property-vs-instance-variable @synthesize myVar _myVar Now I thought the entire premise behind this strategy is so that one can easily distinguish the difference between an ivar and property. So if I want to use the memory management inherited..
http://stackoverflow.com/questions/8146253/animate-change-of-view-controllers-without-using-navigation-controller-stack-su the new view. At any time only the current viewController is alive e.g. alloc'ed . The code can be easily modified to work differently the key point is the animated transition and the single view controller...
Reading HTML content from a UIWebView http://stackoverflow.com/questions/992348/reading-html-content-from-a-uiwebview encoding error method of NSString it lets you pass in a URL as an instance of NSURL which can easily be instantiated from NSString and returns a string with the complete contents of the page at that URL...
Is there any ready-made calendar control for iPhone apps? http://stackoverflow.com/questions/997779/is-there-any-ready-made-calendar-control-for-iphone-apps GCCalendar 2 http github.com klazuka Kal 3 http code.google.com p iphonecal needs to be customized easily to change text from chinese to english 4 Commercial http nrg.com.bd blog archives 36 but the look feel..
How do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder 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 note that the AVAudioRecorder method deleteRecording as of this writing crashes your application. This is why I am removing the recorded file through the..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone if super respondsToSelector @selector motionEnded withEvent super motionEnded motion withEvent event BOOL canBecomeFirstResponder return YES @end You can easily transform any UIView even system views into a view that can get the shake event simply by subclassing the view with only these methods and then selecting this new..
How to scale a UIImageView proportionally? http://stackoverflow.com/questions/185652/how-to-scale-a-uiimageview-proportionally
Expand/collapse section in UITableView http://stackoverflow.com/questions/1938921/expand-collapse-section-in-uitableview that as the first row of each section. Subclassing the UITableView or the headers that are on there now would probably be a huge pain and I'm not sure you can easily get actions out of them the way they work now. You could easily set up a cell to LOOK like a header and setup the tableView didSelectRowAtIndexPath to expand or.. or the headers that are on there now would probably be a huge pain and I'm not sure you can easily get actions out of them the way they work now. You could easily set up a cell to LOOK like a header and setup the tableView didSelectRowAtIndexPath to expand or collapse the section it is within manually. If I were you I'd store..
JSON and Core Data on the iPhone http://stackoverflow.com/questions/2362323/json-and-core-data-on-the-iphone addObject self managedObjectFromStructure structureDictionary withManagedObjectContext moc return objectArray autorelease Now this is recursive so you can easily end up translating your entire persistent store if you are not careful. Watch your relationships and make sure that they only go down the object tree so that you..
http://stackoverflow.com/questions/2496554/easiest-way-to-support-multiple-orientations-how-do-i-load-a-custom-nib-when-th of this function The orientation constants are not globals you query but rather part of the messages sent the controller by the system. As such you cannot easily detect orientation before a view controller loads. Instead you hardwire the app to start in a particular orientation usually portrait and then immediately rotate...
Popover with embedded navigation controller doesn't respect size on back nav http://stackoverflow.com/questions/2752394/popover-with-embedded-navigation-controller-doesnt-respect-size-on-back-nav is nested inside the navigation controller and popover will change its size accordingly when you will navigate back between the controllers. You could easily create category on UIViewController with the following helper method that would do the trick with setting the size void forcePopoverSize CGSize currentSetSizeForPopover..
Adding view on StatusBar in iPhone http://stackoverflow.com/questions/2833724/adding-view-on-statusbar-in-iphone x 20 I don't want to hide the status bar I only want to add it on top of the status bar. iphone uikit uiapplication share improve this question You can easily accomplish this by creating your own window above the existing status bar. Just create a simple subclass of UIWindow with the following override of initWithFrame..
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 and Lean PDF Viewer for iPhone iPad iOs tips and hints There has been many Questions recently about drawing PDF's. Yes you can render PDF's very easily with a UIWebView but this cant give the performance and functionality that you would expect from a good PDF viewer. You can draw a PDF page to a CALayer or to a..
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 to find anything like that. So how the heck do you do it iphone objective c cocoa cocoa touch share improve this question You can achieve this pretty easily with the help of NSPredicate like so NSString bundleRoot NSBundle mainBundle bundlePath NSFileManager fm NSFileManager defaultManager NSArray dirContents fm contentsOfDirectoryAtPath..
Can I use CGAffineTransformMakeRotation to rotate a view more than 360 degrees? http://stackoverflow.com/questions/542739/can-i-use-cgaffinetransformmakerotation-to-rotate-a-view-more-than-360-degrees without having to split the rotation into pieces. As an example the following code will spin a view once per second for a specified number of seconds. You can easily modify it to spin a view by a certain number of rotations or by some number of radians. void runSpinAnimationWithDuration CGFloat duration CABasicAnimation rotationAnimation..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers objects can only set one delegate at a time. So when I have multiple viewcontroller communication what am I to do Ok that's the set up gang. I know I can easily do my communication methods in the app delegate by reference's the multiple viewcontroller instances in my appdelegate but I want to do this sort of thing the right.. be modular and reusable. And if you think about where the Stanford presenters are coming from i.e. as Apple employees their job is to build classes that can easily be reused reusability and modularity are high priorities. All of the best practices they mention for sharing data are part of dependency injection. That's the gist.. handleCheckout bookPicks ... The net result of all this is that you can give me your BookPickerViewController class and related GUI view objects and I can easily use it in my own application assuming BookWarehouse and CheckoutController are generic interfaces i.e. protocols that I can implement @interface MyBookWarehouse..
Replace multiple characters in a string in Objective-C? http://stackoverflow.com/questions/713918/replace-multiple-characters-in-a-string-in-objective-c In PHP I can do this new str_replace array ' ' ' ' '.' '' new ...to replace all instances of the characters . with a blank string to remove them Can I do this easily in Objective C Or do I have to roll my own Currently I am doing multiple calls to stringByReplacingOccurrencesOfString strNew strNew stringByReplacingOccurrencesOfString..
Property vs. instance variable http://stackoverflow.com/questions/719788/property-vs-instance-variable nonatomic retain NSString myVar @end @implementation MyClass @synthesize myVar _myVar Now I thought the entire premise behind this strategy is so that one can easily distinguish the difference between an ivar and property. So if I want to use the memory management inherited by a synthesized property I'd use something such as..
http://stackoverflow.com/questions/8146253/animate-change-of-view-controllers-without-using-navigation-controller-stack-su the current viewController with the viewController owning the new view. At any time only the current viewController is alive e.g. alloc'ed . The code can be easily modified to work differently the key point is the animated transition and the single view controller. Make sure you don't retain a view controller anywhere outside..
Reading HTML content from a UIWebView http://stackoverflow.com/questions/992348/reading-html-content-from-a-uiwebview actually easier to answer. Look at the stringWithContentsOfURL encoding error method of NSString it lets you pass in a URL as an instance of NSURL which can easily be instantiated from NSString and returns a string with the complete contents of the page at that URL. For example NSString googleString @ http www.google.com NSURL..
Is there any ready-made calendar control for iPhone apps? http://stackoverflow.com/questions/997779/is-there-any-ready-made-calendar-control-for-iphone-apps These are the option I am aware of EDIT as of May 6 2010 1 GCCalendar 2 http github.com klazuka Kal 3 http code.google.com p iphonecal needs to be customized easily to change text from chinese to english 4 Commercial http nrg.com.bd blog archives 36 but the look feel of the previous ones is much much better and they are free..
How do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder 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 note that the AVAudioRecorder method deleteRecording as of this writing crashes your application. This is why I..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone motionEnded withEvent super motionEnded motion withEvent event BOOL canBecomeFirstResponder return YES @end You can easily transform any UIView even system views into a view that can get the shake event simply by subclassing the view with only..
How to scale a UIImageView proportionally? http://stackoverflow.com/questions/185652/how-to-scale-a-uiimageview-proportionally
Expand/collapse section in UITableView http://stackoverflow.com/questions/1938921/expand-collapse-section-in-uitableview the UITableView or the headers that are on there now would probably be a huge pain and I'm not sure you can easily get actions out of them the way they work now. You could easily set up a cell to LOOK like a header and setup the tableView.. would probably be a huge pain and I'm not sure you can easily get actions out of them the way they work now. You could easily set up a cell to LOOK like a header and setup the tableView didSelectRowAtIndexPath to expand or collapse the section it..
JSON and Core Data on the iPhone http://stackoverflow.com/questions/2362323/json-and-core-data-on-the-iphone structureDictionary withManagedObjectContext moc return objectArray autorelease Now this is recursive so you can easily end up translating your entire persistent store if you are not careful. Watch your relationships and make sure that they..
http://stackoverflow.com/questions/2496554/easiest-way-to-support-multiple-orientations-how-do-i-load-a-custom-nib-when-th are not globals you query but rather part of the messages sent the controller by the system. As such you cannot easily detect orientation before a view controller loads. Instead you hardwire the app to start in a particular orientation usually..
Popover with embedded navigation controller doesn't respect size on back nav http://stackoverflow.com/questions/2752394/popover-with-embedded-navigation-controller-doesnt-respect-size-on-back-nav controller and popover will change its size accordingly when you will navigate back between the controllers. You could easily create category on UIViewController with the following helper method that would do the trick with setting the size void..
Adding view on StatusBar in iPhone http://stackoverflow.com/questions/2833724/adding-view-on-statusbar-in-iphone I only want to add it on top of the status bar. iphone uikit uiapplication share improve this question You can easily accomplish this by creating your own window above the existing status bar. Just create a simple subclass of UIWindow with..
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 iPad iOs tips and hints There has been many Questions recently about drawing PDF's. Yes you can render PDF's very easily with a UIWebView but this cant give the performance and functionality that you would expect from a good PDF viewer. You..
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 heck do you do it iphone objective c cocoa cocoa touch share improve this question You can achieve this pretty easily with the help of NSPredicate like so NSString bundleRoot NSBundle mainBundle bundlePath NSFileManager fm NSFileManager defaultManager..
Can I use CGAffineTransformMakeRotation to rotate a view more than 360 degrees? http://stackoverflow.com/questions/542739/can-i-use-cgaffinetransformmakerotation-to-rotate-a-view-more-than-360-degrees pieces. As an example the following code will spin a view once per second for a specified number of seconds. You can easily modify it to spin a view by a certain number of rotations or by some number of radians. void runSpinAnimationWithDuration..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers a time. So when I have multiple viewcontroller communication what am I to do Ok that's the set up gang. I know I can easily do my communication methods in the app delegate by reference's the multiple viewcontroller instances in my appdelegate but.. about where the Stanford presenters are coming from i.e. as Apple employees their job is to build classes that can easily be reused reusability and modularity are high priorities. All of the best practices they mention for sharing data are part.. result of all this is that you can give me your BookPickerViewController class and related GUI view objects and I can easily use it in my own application assuming BookWarehouse and CheckoutController are generic interfaces i.e. protocols that I..
Replace multiple characters in a string in Objective-C? http://stackoverflow.com/questions/713918/replace-multiple-characters-in-a-string-in-objective-c ' ' ' ' '.' '' new ...to replace all instances of the characters . with a blank string to remove them Can I do this easily in Objective C Or do I have to roll my own Currently I am doing multiple calls to stringByReplacingOccurrencesOfString strNew..
Property vs. instance variable http://stackoverflow.com/questions/719788/property-vs-instance-variable MyClass @synthesize myVar _myVar Now I thought the entire premise behind this strategy is so that one can easily distinguish the difference between an ivar and property. So if I want to use the memory management inherited by a synthesized..
http://stackoverflow.com/questions/8146253/animate-change-of-view-controllers-without-using-navigation-controller-stack-su owning the new view. At any time only the current viewController is alive e.g. alloc'ed . The code can be easily modified to work differently the key point is the animated transition and the single view controller. Make sure you don't..
Reading HTML content from a UIWebView http://stackoverflow.com/questions/992348/reading-html-content-from-a-uiwebview stringWithContentsOfURL encoding error method of NSString it lets you pass in a URL as an instance of NSURL which can easily be instantiated from NSString and returns a string with the complete contents of the page at that URL. For example NSString..
Is there any ready-made calendar control for iPhone apps? http://stackoverflow.com/questions/997779/is-there-any-ready-made-calendar-control-for-iphone-apps as of May 6 2010 1 GCCalendar 2 http github.com klazuka Kal 3 http code.google.com p iphonecal needs to be customized easily to change text from chinese to english 4 Commercial http nrg.com.bd blog archives 36 but the look feel of the previous ones..
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