2014/10/15 下午 10:04:29

iphone Programming Glossary: avoids

How to programmatically send SMS on the iPhone?

http://stackoverflow.com/questions/10848/how-to-programmatically-send-sms-on-the-iphone

SMS from the iPhone itself it requires some user interaction. But this at least allows you to populate everything and avoids closing the application. The MFMessageComposeViewController class is well documented and tutorials show how easy it is to..

Corebluetooth central manager callback didDiscoverPeripheral twice

http://stackoverflow.com/questions/11557500/corebluetooth-central-manager-callback-diddiscoverperipheral-twice

all of them you would need the parameter so the scan didn't stop after finding the first one. In their code Apple avoids duplicates like this NSMutableArray peripherals self mutableArrayValueForKey @ thermometers if self.thermometers containsObject..

KVC vs fast enumeration

http://stackoverflow.com/questions/16337362/kvc-vs-fast-enumeration

ipad kvc share improve this question Really a lot of how elegant or clever a language is comes down to how well it avoids loops. for while even fast enumeration expressions are a drag. No matter how you sugar coat them loops will be a block of..

How to remove common letters in two Strings in iOS SDK? [closed]

http://stackoverflow.com/questions/17421900/how-to-remove-common-letters-in-two-strings-in-ios-sdk

Thoras new string should be Djaha iphone ios objective c nsstring share improve this question Here's a way that avoids the nitty gritty of character enumeration NSString string1 @ Deja Thoras NSString string2 @ Optimus Prime NSCharacterSet..

How to Start UITableView on the Last Cell?

http://stackoverflow.com/questions/2156614/how-to-start-uitableview-on-the-last-cell

depending on the number of rows and which row you are scrolling to it may not make a difference. Putting reloadData avoids an exception if the data is not loaded yet in viewWillAppear. If you put the scrollToRowAtIndexPath in viewDidAppear you..

iPhone - dequeueReusableCellWithIdentifier usage

http://stackoverflow.com/questions/2928873/iphone-dequeuereusablecellwithidentifier-usage

to the cell return cell The difference is that people use the same identifier for every cell so dequeuing one only avoids to alloc a new one. For me the point of queuing was to give each cell a unique identifier so when the app asks for a cell..

Dismissing UIAlertViews when entering background state

http://stackoverflow.com/questions/3105974/dismissing-uialertviews-when-entering-background-state

self name UIApplicationDidEnterBackgroundNotification object nil #pragma mark UIAlertViewDelegate The code below avoids to re implement all protocol methods to forward to the real delegate. id forwardingTargetForSelector SEL aSelector struct..

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

store IMP SetFrameIMP @end While this looks a little less like Objective C since it's using function pointers it avoids any naming conflicts. In principle it's doing the exact same thing as standard swizzling. This may be a bit of a change..

Difference between protocol and delegates?

http://stackoverflow.com/questions/5431413/difference-between-protocol-and-delegates

particular variable regardless of what class it is. This is a great way of avoiding the inheritance design pattern and avoids tight coupling. Delegates are a use of the language feature of protocols. The delegation design pattern is a way of designing..

Displaying an Image from URL Objective C

http://stackoverflow.com/questions/5577781/displaying-an-image-from-url-objective-c

an Image from URL Objective C Is there any way of achieving the following that avoids using initWithData Just in case you are curious initWithData is getting my app flagged by Apple as using an illegal API..

How to convert NSData to byte array in iPhone?

http://stackoverflow.com/questions/724086/how-to-convert-nsdata-to-byte-array-in-iphone

bytes into it. You could also use getBytes len as indicated by others if you want to use a fixed length array. This avoids malloc free but is less extensible and more prone to buffer overflow issues so I rarely ever use it. share improve this..

When should I release [[UIApplication sharedApplication] delegate] object?

http://stackoverflow.com/questions/7370553/when-should-i-release-uiapplication-sharedapplication-delegate-object

Correct Singleton Pattern Objective C (iOS)?

http://stackoverflow.com/questions/7598820/correct-singleton-pattern-objective-c-ios

static MySingleton instance nil static dispatch_once_t predicate dispatch_once predicate ^ call to super avoids a deadlock with the above allocWithZone instance super allocWithZone nil init return instance MARK MARK Initialization..

Moving a Stick figure, anchorpoints, animation, or something else…?

http://stackoverflow.com/questions/7808981/moving-a-stick-figure-anchorpoints-animation-or-something-else

2 3 and 4 digits over time. In such cases right aligning a node by modifying the anchorPoint is justified because it avoids having to recalculate the position every time the contentSize of the node changes. 3 There are rare cases where an artist..

How to pass object on modal view's dismissal

http://stackoverflow.com/questions/7962519/how-to-pass-object-on-modal-views-dismissal

is to create a protocol and use a delegate to pass information backwards in your view controller hierarchy. This avoids the tight coupling which is happening in your example when you link back to self.parentViewController.navigationController..

sqlite database update when app version changes on Appstore in iPhone

http://stackoverflow.com/questions/8794397/sqlite-database-update-when-app-version-changes-on-appstore-in-iphone

XCode: Displaying a UIDatePicker when user clicks on UITextbox

http://stackoverflow.com/questions/8974131/xcode-displaying-a-uidatepicker-when-user-clicks-on-uitextbox

responder void textFieldEndedEditing NSNotification note _inputField nil the first responder ended editing CRITICAL avoids retain cycle INITI METHODS void initializationCodeMethod _datePicker UIDatePicker alloc initWithFrame CGRectMake 0 0 320..

Why does clearing NSUserDefaults cause EXC_CRASH later when creating a UIWebView?

http://stackoverflow.com/questions/9679163/why-does-clearing-nsuserdefaults-cause-exc-crash-later-when-creating-a-uiwebview

anotherWebView UIWebView alloc init anotherWebView release I can work around the crash by doing this instead which avoids having to remember all your settings keys id workaround51Crash NSUserDefaults standardUserDefaults objectForKey @ WebKitLocalStorageDatabasePathPreferenceKey..