2014/10/15 下午 10:11:11

iphone Programming Glossary: loop

The best way to remove duplicate values from NSMutableArray in Objective-C?

http://stackoverflow.com/questions/1025674/the-best-way-to-remove-duplicate-values-from-nsmutablearray-in-objective-c

then why aren't you storing them in an NSSet to begin with If you are worried about the order loop over a copy of the array NSArray copy mutableArray copy NSInteger index copy count 1 for id object in..

how to get the message when receiving the “kCTMessageReceivedNotification” notification on IOS5

http://stackoverflow.com/questions/10681995/how-to-get-the-message-when-receiving-the-kctmessagereceivednotification-notif

NULL else iOS 5. untested sqlite3_prepare_v2 database sql4 1 statement NULL Use the while loop if you want more than just the most recent message while sqlite3_step statement SQLITE_ROW if sqlite3_step..

NSURLConnection and Basic HTTP Authentication

http://stackoverflow.com/questions/1973325/nsurlconnection-and-basic-http-authentication

Is there a way to make drawRect work right NOW?

http://stackoverflow.com/questions/4739748/is-there-a-way-to-make-drawrect-work-right-now

Tom Swift has explained the amazing idea of quite simply manipulating the run loop . Here's how you trigger the run loop NSRunLoop currentRunLoop runMode NSDefaultRunLoopMode beforeDate.. the amazing idea of quite simply manipulating the run loop . Here's how you trigger the run loop NSRunLoop currentRunLoop runMode NSDefaultRunLoopMode beforeDate NSDate date This is a truly amazing.. amazing piece of engineering. Of course one should be extremely careful when manipulating the run loop and as many pointed out this approach is strictly for experts. The Bizarre Problem That Arises................................................

Difference between [NSMutableArray array] vs [[NSMutableArray alloc] init]

http://stackoverflow.com/questions/5423211/difference-between-nsmutablearray-array-vs-nsmutablearray-alloc-init

and can pile up until the pool is drained whenever that may be. Another thing to watch out for is loops. You may generate autoreleased objects without being aware of it and they just pile up in the pool... just pile up in the pool. The solution is to create your own autorelease pool at the start of the loop and release it at the end of the loop so that the objects are released each time thru the loop. EDIT.. is to create your own autorelease pool at the start of the loop and release it at the end of the loop so that the objects are released each time thru the loop. EDIT 12 18 2011 But with iOS 5 and the coming..

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

with core data storage template. I compiled it and did some hard hitting with some help of a for loop to create around 2k entries all with some different values. There we go 2.000 events with an NSDate..

UIScrollView pauses NSTimer until scrolling finishes

http://stackoverflow.com/questions/605027/uiscrollview-pauses-nstimer-until-scrolling-finishes

nstimer share improve this question You have to run another thread and another run loop if you want timers to fire while scrolling since timers are processed as part of the event loop if you're.. loop if you want timers to fire while scrolling since timers are processed as part of the event loop if you're busy processing scrolling your view you never get around to the timers. Though the perf battery..

Understanding reference counting with Cocoa and Objective-C

http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c

now knows that once it gets an opportunity after the current iteration of the event loop it can call release on the object. From our perspective as programmers it takes care of calling release.. For example in the following example the variable s has a reference count of 1 but after the event loop completes it will be destroyed. NSString s NSString stringWithString @ Hello World If you want to hang..

GCD, Threads, Program Flow and UI Updating

http://stackoverflow.com/questions/7290931/gcd-threads-program-flow-and-ui-updating

here. Need to wait here until createTreeFromNode is finished. solveButton.enabled YES A UI message loop is running on the main thread which keeps the UI running. solvePuzzle is getting called on the main..

canonical way to randomize an NSArray in Objective C

http://stackoverflow.com/questions/791232/canonical-way-to-randomize-an-nsarray-in-objective-c

m 1 Compute smallest power of two greater than n. There's probably a faster solution than this loop but bit twiddling isn't my specialty. do m 1 while m n NSUInteger ret do ret random m while ret n return..

The best way to remove duplicate values from NSMutableArray in Objective-C?

http://stackoverflow.com/questions/1025674/the-best-way-to-remove-duplicate-values-from-nsmutablearray-in-objective-c

the objects but then again if you're not worried about the order then why aren't you storing them in an NSSet to begin with If you are worried about the order loop over a copy of the array NSArray copy mutableArray copy NSInteger index copy count 1 for id object in copy reverseObjectEnumerator if mutableArray indexOfObject..

how to get the message when receiving the “kCTMessageReceivedNotification” notification on IOS5

http://stackoverflow.com/questions/10681995/how-to-get-the-message-when-receiving-the-kctmessagereceivednotification-notif

@ 5 iOS 5. tested sqlite3_prepare_v2 database sql5 1 statement NULL else iOS 5. untested sqlite3_prepare_v2 database sql4 1 statement NULL Use the while loop if you want more than just the most recent message while sqlite3_step statement SQLITE_ROW if sqlite3_step statement SQLITE_ROW char content char sqlite3_column_text..

NSURLConnection and Basic HTTP Authentication

http://stackoverflow.com/questions/1973325/nsurlconnection-and-basic-http-authentication

Is there a way to make drawRect work right NOW?

http://stackoverflow.com/questions/4739748/is-there-a-way-to-make-drawrect-work-right-now

Truly astounding alternate solution introduced by Tom Swift.................. Tom Swift has explained the amazing idea of quite simply manipulating the run loop . Here's how you trigger the run loop NSRunLoop currentRunLoop runMode NSDefaultRunLoopMode beforeDate NSDate date This is a truly amazing piece of engineering... introduced by Tom Swift.................. Tom Swift has explained the amazing idea of quite simply manipulating the run loop . Here's how you trigger the run loop NSRunLoop currentRunLoop runMode NSDefaultRunLoopMode beforeDate NSDate date This is a truly amazing piece of engineering. Of course one should be extremely careful.. NSDefaultRunLoopMode beforeDate NSDate date This is a truly amazing piece of engineering. Of course one should be extremely careful when manipulating the run loop and as many pointed out this approach is strictly for experts. The Bizarre Problem That Arises.............................................. Even though a number..

Difference between [NSMutableArray array] vs [[NSMutableArray alloc] init]

http://stackoverflow.com/questions/5423211/difference-between-nsmutablearray-array-vs-nsmutablearray-alloc-init

is that autoreleased objects live in the autorelease pool and can pile up until the pool is drained whenever that may be. Another thing to watch out for is loops. You may generate autoreleased objects without being aware of it and they just pile up in the pool. The solution is to create your own autorelease pool at the.. autoreleased objects without being aware of it and they just pile up in the pool. The solution is to create your own autorelease pool at the start of the loop and release it at the end of the loop so that the objects are released each time thru the loop. EDIT 12 18 2011 But with iOS 5 and the coming of ARC the autorelease.. aware of it and they just pile up in the pool. The solution is to create your own autorelease pool at the start of the loop and release it at the end of the loop so that the objects are released each time thru the loop. EDIT 12 18 2011 But with iOS 5 and the coming of ARC the autorelease mechanism is far more efficient and..

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

get when you create a project with the navigation based app with core data storage template. I compiled it and did some hard hitting with some help of a for loop to create around 2k entries all with some different values. There we go 2.000 events with an NSDate value. Now we add a second version of the data model which looks..

UIScrollView pauses NSTimer until scrolling finishes

http://stackoverflow.com/questions/605027/uiscrollview-pauses-nstimer-until-scrolling-finishes

around this Threads A priority setting Anything iphone uiscrollview nstimer share improve this question You have to run another thread and another run loop if you want timers to fire while scrolling since timers are processed as part of the event loop if you're busy processing scrolling your view you never get around.. this question You have to run another thread and another run loop if you want timers to fire while scrolling since timers are processed as part of the event loop if you're busy processing scrolling your view you never get around to the timers. Though the perf battery penalty of running timers on other threads might not be..

Understanding reference counting with Cocoa and Objective-C

http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c

thread's NSAutoreleasePool is alerted of the call. The NSAutoreleasePool now knows that once it gets an opportunity after the current iteration of the event loop it can call release on the object. From our perspective as programmers it takes care of calling release for us so we don't have to and in fact we shouldn't . What's.. creation class methods return an autoreleased object. For example in the following example the variable s has a reference count of 1 but after the event loop completes it will be destroyed. NSString s NSString stringWithString @ Hello World If you want to hang onto that string you'd need to call retain explicitly and..

GCD, Threads, Program Flow and UI Updating

http://stackoverflow.com/questions/7290931/gcd-threads-program-flow-and-ui-updating

withObject rootNode NO do not wait or enable here. Need to wait here until createTreeFromNode is finished. solveButton.enabled YES A UI message loop is running on the main thread which keeps the UI running. solvePuzzle is getting called on the main thread so you can't wait it will block the UI. It also can't..

canonical way to randomize an NSArray in Objective C

http://stackoverflow.com/questions/791232/canonical-way-to-randomize-an-nsarray-in-objective-c

range. static NSUInteger random_below NSUInteger n NSUInteger m 1 Compute smallest power of two greater than n. There's probably a faster solution than this loop but bit twiddling isn't my specialty. do m 1 while m n NSUInteger ret do ret random m while ret n return ret @implementation NSMutableArray ArchUtils_Shuffle void..

The best way to remove duplicate values from NSMutableArray in Objective-C?

http://stackoverflow.com/questions/1025674/the-best-way-to-remove-duplicate-values-from-nsmutablearray-in-objective-c

worried about the order then why aren't you storing them in an NSSet to begin with If you are worried about the order loop over a copy of the array NSArray copy mutableArray copy NSInteger index copy count 1 for id object in copy reverseObjectEnumerator..

how to get the message when receiving the “kCTMessageReceivedNotification” notification on IOS5

http://stackoverflow.com/questions/10681995/how-to-get-the-message-when-receiving-the-kctmessagereceivednotification-notif

database sql5 1 statement NULL else iOS 5. untested sqlite3_prepare_v2 database sql4 1 statement NULL Use the while loop if you want more than just the most recent message while sqlite3_step statement SQLITE_ROW if sqlite3_step statement SQLITE_ROW..

NSURLConnection and Basic HTTP Authentication

http://stackoverflow.com/questions/1973325/nsurlconnection-and-basic-http-authentication

Is there a way to make drawRect work right NOW?

http://stackoverflow.com/questions/4739748/is-there-a-way-to-make-drawrect-work-right-now

by Tom Swift.................. Tom Swift has explained the amazing idea of quite simply manipulating the run loop . Here's how you trigger the run loop NSRunLoop currentRunLoop runMode NSDefaultRunLoopMode beforeDate NSDate date This.. Tom Swift has explained the amazing idea of quite simply manipulating the run loop . Here's how you trigger the run loop NSRunLoop currentRunLoop runMode NSDefaultRunLoopMode beforeDate NSDate date This is a truly amazing piece of engineering... date This is a truly amazing piece of engineering. Of course one should be extremely careful when manipulating the run loop and as many pointed out this approach is strictly for experts. The Bizarre Problem That Arises................................................

Difference between [NSMutableArray array] vs [[NSMutableArray alloc] init]

http://stackoverflow.com/questions/5423211/difference-between-nsmutablearray-array-vs-nsmutablearray-alloc-init

the autorelease pool and can pile up until the pool is drained whenever that may be. Another thing to watch out for is loops. You may generate autoreleased objects without being aware of it and they just pile up in the pool. The solution is to.. aware of it and they just pile up in the pool. The solution is to create your own autorelease pool at the start of the loop and release it at the end of the loop so that the objects are released each time thru the loop. EDIT 12 18 2011 But with.. pool. The solution is to create your own autorelease pool at the start of the loop and release it at the end of the loop so that the objects are released each time thru the loop. EDIT 12 18 2011 But with iOS 5 and the coming of ARC the autorelease..

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

navigation based app with core data storage template. I compiled it and did some hard hitting with some help of a for loop to create around 2k entries all with some different values. There we go 2.000 events with an NSDate value. Now we add a..

UIScrollView pauses NSTimer until scrolling finishes

http://stackoverflow.com/questions/605027/uiscrollview-pauses-nstimer-until-scrolling-finishes

Anything iphone uiscrollview nstimer share improve this question You have to run another thread and another run loop if you want timers to fire while scrolling since timers are processed as part of the event loop if you're busy processing.. thread and another run loop if you want timers to fire while scrolling since timers are processed as part of the event loop if you're busy processing scrolling your view you never get around to the timers. Though the perf battery penalty of running..

Understanding reference counting with Cocoa and Objective-C

http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c

of the call. The NSAutoreleasePool now knows that once it gets an opportunity after the current iteration of the event loop it can call release on the object. From our perspective as programmers it takes care of calling release for us so we don't.. object. For example in the following example the variable s has a reference count of 1 but after the event loop completes it will be destroyed. NSString s NSString stringWithString @ Hello World If you want to hang onto that string..

GCD, Threads, Program Flow and UI Updating

http://stackoverflow.com/questions/7290931/gcd-threads-program-flow-and-ui-updating

not wait or enable here. Need to wait here until createTreeFromNode is finished. solveButton.enabled YES A UI message loop is running on the main thread which keeps the UI running. solvePuzzle is getting called on the main thread so you can't..

canonical way to randomize an NSArray in Objective C

http://stackoverflow.com/questions/791232/canonical-way-to-randomize-an-nsarray-in-objective-c

NSUInteger n NSUInteger m 1 Compute smallest power of two greater than n. There's probably a faster solution than this loop but bit twiddling isn't my specialty. do m 1 while m n NSUInteger ret do ret random m while ret n return ret @implementation..

Export SQLite data to Excel in iOS programmatically

http://stackoverflow.com/questions/11132900/export-sqlite-data-to-excel-in-ios-programmatically

compiledStatement if sqlite3_prepare_v2 database sqlStatement UTF8String 1 compiledStatement NULL SQLITE_OK Loop through the results and write them to the CSV file while sqlite3_step compiledStatement SQLITE_ROW Read the data from..

Loop an UIScrollView [duplicate]

http://stackoverflow.com/questions/1383849/loop-an-uiscrollview

an UIScrollView duplicate Possible Duplicate UIScrollView. Any thoughts on implementing &ldquo infinite&rdquo scroll zoom..

How do I play background music in my iPhone game? [duplicate]

http://stackoverflow.com/questions/183112/how-do-i-play-background-music-in-my-iphone-game

do I play background music in my iPhone game duplicate Possible Duplicate iPhone iPad Loop Background Music The official iphone docs aren't bad but I'm finding them pretty unhelpful on this subject all I can find..

Core Data “Upsert” from SQLite Database

http://stackoverflow.com/questions/1997212/core-data-upsert-from-sqlite-database

NSFetchRequest fetchRequest NSFetchRequest alloc init autorelease fetchRequest setEntity entityDescription Loop through the results and add them to the feeds array while sqlite3_step compiledStatement SQLITE_ROW NSString someName..

Objective-C : How to fetch the router address?

http://stackoverflow.com/questions/2113580/objective-c-how-to-fetch-the-router-address

NULL int success 0 retrieve the current interfaces returns 0 on success success getifaddrs interfaces if success 0 Loop through linked list of interfaces temp_addr interfaces while temp_addr NULL if temp_addr ifa_addr sa_family AF_INET Check..

How to truncate an NSString based on the graphical width?

http://stackoverflow.com/questions/2266396/how-to-truncate-an-nsstring-based-on-the-graphical-width

with the full string if that's wider than what you need replace the last two characters with an ellipsis character. Loop until it's narrow enough. If you think you'll be working with long strings you can binary search your way towards the truncation..

Creating a custom UIKeyBoard for iPhone

http://stackoverflow.com/questions/2275685/creating-a-custom-uikeyboard-for-iphone

count c Get a reference of the current window tempWindow UIApplication sharedApplication windows objectAtIndex c Loop through all views in the current window for int i 0 i tempWindow.subviews count i Get a reference to the current view keyboard..

Get IP address of the current Wi-Fi access point on a iPhone?

http://stackoverflow.com/questions/3538365/get-ip-address-of-the-current-wi-fi-access-point-on-a-iphone

NULL int success 0 Retrieve the current interfaces returns 0 on success success getifaddrs interfaces if success 0 Loop through linked list of interfaces temp_addr interfaces while temp_addr NULL if temp_addr ifa_addr sa_family AF_INET Check..

iPhone/iPad - Loop Background Music?

http://stackoverflow.com/questions/3631353/iphone-ipad-loop-background-music

iPad Loop Background Music First time doing this hope you can help. What the best way of playing background music for my iPad game.. soundFilePath AVAudioPlayer player AVAudioPlayer alloc initWithContentsOfURL soundFileURL error nil player.numberOfLoops 1 infinite player play and you can jump through by setting the currentTime player.currentTime 10 jump to 10th second ..

Is it possible to get information about all apps installed on iPhone?

http://stackoverflow.com/questions/3878197/is-it-possible-to-get-information-about-all-apps-installed-on-iphone

@ Caches stringByAppendingPathComponent cacheFileName NSDictionary cacheDict nil NSString path nil Loop through all possible paths the cache could be in for short i 0 1 i switch i case 0 Jailbroken apps will find the cache..

How to use a xib and a UIView subclass together?

http://stackoverflow.com/questions/4071738/how-to-use-a-xib-and-a-uiview-subclass-together

mainBundle loadNibNamed @ MyCustomView owner nil options nil MyCustomView myView nil for id xibObject in xibArray Loop through array check for the object we're interested in. if xibObject isKindOfClass MyCustomView class Use casting to cast..

Multiline UILabel with adjustsFontSizeToFitWidth

http://stackoverflow.com/questions/4382976/multiline-uilabel-with-adjustsfontsizetofitwidth

sizeWithFont newFont constrainedToSize CGSizeMake size.width FLT_MAX lineBreakMode UILineBreakModeWordWrap .height Loop through words in string and resize to fit for NSString word in self componentsSeparatedByCharactersInSet NSCharacterSet..

AVAssetReader and Audio Queue streaming problem

http://stackoverflow.com/questions/4763598/avassetreader-and-audio-queue-streaming-problem

postNotificationName NOTIF_callsample object nil float inData float inBuffer mAudioData int offsetSample 0 Loop until finish reading from the music data while bytesToRead THIS IS THE PROBLEMATIC LINE CMSampleBufferRef sampBuffer pplayerState..

how to get the external ip in objective c

http://stackoverflow.com/questions/5450621/how-to-get-the-external-ip-in-objective-c

iPhone MKMapView - MKPolygon Issues

http://stackoverflow.com/questions/5474299/iphone-mkmapview-mkpolygon-issues

CLLocationCoordinate2D structs. You can use malloc to allocate memory for the array and free to release the memory . Loop through your NSArray and set it each element in the struct array. For example coordsLen coordinateData count CLLocationCoordinate2D..

How can I fade-out the sound played by MPMusicPlayerController?

http://stackoverflow.com/questions/6395375/how-can-i-fade-out-the-sound-played-by-mpmusicplayercontroller

share improve this question There is no fade functionality so you have to implement it yourself. Loop until volume is 0 and add a delay for each step. If you want all this to happen 2 seconds into the future put the code on..

Merge PDF files on iOS

http://stackoverflow.com/questions/6553540/merge-pdf-files-on-ios

pdfRef2 Create the output context CGContextRef writeContext CGPDFContextCreateWithURL pdfURLOutput NULL NULL Loop variables CGPDFPageRef page CGRect mediaBox Read the first PDF and generate the output pages NSLog @ GENERATING PAGES FROM..

how to get ip address of iphone programatically [duplicate]

http://stackoverflow.com/questions/6807788/how-to-get-ip-address-of-iphone-programatically

iPhone/iPad/OSX: How to get my IP address programmatically?

http://stackoverflow.com/questions/7072989/iphone-ipad-osx-how-to-get-my-ip-address-programmatically

Loop through all object properties at runtime

http://stackoverflow.com/questions/9269372/loop-through-all-object-properties-at-runtime

through all object properties at runtime I want to create an Objective C base class that performs an operation on all properties..