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2014/10/15 ¤U¤È 10:15:33
iphone Programming Glossary: urHow can I check if a user tapped near a CGPath? http://stackoverflow.com/questions/1143704/how-can-i-check-if-a-user-tapped-near-a-cgpath paths Here's what I had working UIGraphincsBeginImageContext CGPathGetBoundingBox path CGContextRef g UIGraphicsGetCurrentContext CGContextAddPath g path CGContextSetLineWidth g 15 CGContextReplacePathWithStrokedPath g CGPath clickArea CGContextCopyPath.. create the click area I can check inside of to find clicks. So I get that stroked path by telling the context to turn the path into a stroked path then copying that path back out into another CGPath. Later I can check if CGPathContainsPoint.. like a bad idea to use for obvious reasons. There's also a certain kludginess about making a CGContext just for this purpose. So does anybody have any ideas How do I check if a user tapped near in this case within 15 pixels of any area on a..
How to convert image path to uiimage using ALAssetsLibrary http://stackoverflow.com/questions/11721762/how-to-convert-image-path-to-uiimage-using-alassetslibrary UIImage image UIImage imageWithCGImage asset defaultRepresentation fullResolutionImage fileImage addObject image failureBlock ^ NSError error iphone ios assets share improve this question Use the below code typedef void ^ALAssetsLibraryAssetForURLResultBlock.. below code typedef void ^ALAssetsLibraryAssetForURLResultBlock ALAsset asset typedef void ^ALAssetsLibraryAccessFailureBlock NSError error ALAssetsLibraryAssetForURLResultBlock resultblock ^ ALAsset myasset ALAssetRepresentation rep myasset.. iref scale rep scale orientation UIImageOrientation rep orientation fileImage addObject myImage binding ur UI elements in main queue for fast execution self.imageView.image myImage ALAssetsLibraryAccessFailureBlock failureblock..
iphone SDK detect Wifi and Carrier network http://stackoverflow.com/questions/1625158/iphone-sdk-detect-wifi-and-carrier-network can anyone tell me whats the best to be done to detect if there's a connection any type of connection Appreciate ur help iphone data networking wifi detect share improve this question That sample is exactly what you need. Look at Reachability.m...
iPhone: Download PDF and store locally? http://stackoverflow.com/questions/2226615/iphone-download-pdf-and-store-locally it is newer then the new PDF is downloaded if its not newer then it just opens the locally stored PDF. The code I am currently using PDFAddress NSURL URLWithString @ http www.msy.com.au Parts PARTS.pdf request NSURLRequest requestWithURL PDFAddress.. 3.0 uiwebview share improve this question I have found one method which i tried my self Get the PDF Data from the url in a NSData Object NSData pdfData NSData alloc initWithContentsOfURL NSURL URLWithString @ http www.msy.com.au Parts PARTS.pdf.. NSURL URLWithString @ http www.msy.com.au Parts PARTS.pdf Store the Data locally as PDF File NSString resourceDocPath NSString alloc initWithString NSBundle mainBundle resourcePath stringByDeletingLastPathComponent stringByAppendingPathComponent..
Rotate UIViewController to counteract changes in UIInterfaceOrientation http://stackoverflow.com/questions/2489845/rotate-uiviewcontroller-to-counteract-changes-in-uiinterfaceorientation in Portrait I want the right side of the button to be up in UIInterfaceOrientationLandscapeLeft. Is this possible Currently I'm doing really gross stuff like this void rotate UIInterfaceOrientation fromOrientation toOr UIInterfaceOrientation.. toOrientation UIInterfaceOrientationLandscapeLeft which seems like a perfectly good waste of code. Furthermore I was planning on using CGAffineTransform like cited here http www.crystalminds.nl p 1102 but I'm confused about.. interface orientation share improve this question The best thing you can do is to change the frames of ur subview frames according to ur interface orientations. You can do it like #pragma mark #pragma mark InterfaceOrientationMethods..
http://stackoverflow.com/questions/3775577/uiimageview-touch-event setImage UIImage imageNamed @ appleimg.jpg view1 addSubview image1 transition1 CATransition animation transition1.duration 0.75 transition1.timingFunction CAMediaTimingFunction functionWithName kCAMediaTimingFunctionEaseInEaseOut transition1.type.. setImage UIImage imageNamed @ boatimg.jpg view1 addSubview image1 transition2 CATransition animation transition2.duration 0.75 transition2.timingFunction CAMediaTimingFunction functionWithName kCAMediaTimingFunctionEaseInEaseOut transition2.type.. out to do this... Plz Explain briefly with some code to perform uiimageview touch event... Thank u.... I'm waiting for ur reply Renya iphone uiimageview touch share improve this question Make your image view user interaction enabled in the..
want to add manual erasing option in ipad painting application by quartz http://stackoverflow.com/questions/3863931/want-to-add-manual-erasing-option-in-ipad-painting-application-by-quartz drawInRect CGRectMake 0 0 imgview.frame.size.width imgview.frame.size.height CGContextSetLineCap UIGraphicsGetCurrentContext kCGLineCapRound CGContextSetLineWidth UIGraphicsGetCurrentContext lineWidth CGContextSetStrokeColorWithColor.. CGContextSetLineCap UIGraphicsGetCurrentContext kCGLineCapRound CGContextSetLineWidth UIGraphicsGetCurrentContext lineWidth CGContextSetStrokeColorWithColor UIGraphicsGetCurrentContext UIColor colorWithPatternImage img .CGColor.. CGContextSetLineWidth UIGraphicsGetCurrentContext lineWidth CGContextSetStrokeColorWithColor UIGraphicsGetCurrentContext UIColor colorWithPatternImage img .CGColor CGContextSetFillColorWithColor UIGraphicsGetCurrentContext UIColor..
UITableView scroll smooth with certain speed? http://stackoverflow.com/questions/3979119/uitableview-scroll-smooth-with-certain-speed method scrollToRowAtIndexPath atScrollPosition animated But this method will make the table scroll with a constant duration. So you will not really recognize a long or short spin. I'm looking for a way to A Slow down the scroll animation... not really recognize a long or short spin. I'm looking for a way to A Slow down the scroll animation. Or B Change the duration for the scroll animation to a self defined value. The normal scroll animation with the finger does show this effect... Because a UITableView inherits from UIScrollView you might also use setContentOffset animated This way you can make your tableview scroll a certain amount of pixels of your choosing to any side you like. This can be done the same with the scrollToRowAtIndexPath..
Why NSCalendar's dateFromComponents returns wrong date? http://stackoverflow.com/questions/4322687/why-nscalendars-datefromcomponents-returns-wrong-date NSCalendar's dateFromComponents returns wrong date I am expecting 2010 10 11 00 00 00 But instead I receive 2010 10 10 21 00 00 0000 I know that I can add a.. date I am expecting 2010 10 11 00 00 00 But instead I receive 2010 10 10 21 00 00 0000 I know that I can add a few hours and receive desired date but I do not understand why I get previous day with 21 hours... Please help NSDateComponents comps.. I know that I can add a few hours and receive desired date but I do not understand why I get previous day with 21 hours... Please help NSDateComponents comps NSDateComponents alloc init comps setYear 2010 comps setMonth 10 comps setDay 11..
http://stackoverflow.com/questions/4688072/how-can-i-change-the-look-of-abpeoplepickernavigationcontroller-so-that-i-can-se iphone abpeoplepickerview share improve this question If you want to customize the address book according to your requirements i suggest you should not use ABPeoplePickerNavigationController.Instead of that make the use of Address Book.. not use ABPeoplePickerNavigationController.Instead of that make the use of Address Book object retrieve data from your address book and display those data in your custom ViewController.In this way you will be able to customize ur View in whichever.. of that make the use of Address Book object retrieve data from your address book and display those data in your custom ViewController.In this way you will be able to customize ur View in whichever way you want. Secondly you cannot modify..
How to use CCCrypt() to encrypt a file? http://stackoverflow.com/questions/5564641/how-to-use-cccrypt-to-encrypt-a-file vector optional dataBytes dataLength input buffer bufferSize output numBytesEncrypted But when decrypt it returns error kCCDecodeError 4304. If I remove the param of kCCOptionPKCS7Padding when decrypt there is no error. But the file.. params thanks alot iphone objective c ios ipad share improve this question This for encryption NSString key @ YourKey char keyPtr kCCKeySizeAES256 1 room for terminator unused bzero keyPtr sizeof keyPtr fill with zeroes for padding fetch.. fetch key data key getCString keyPtr maxLength sizeof keyPtr encoding NSUTF8StringEncoding char dataIn This is your data char dataOut 500 set it acc ur data bzero dataOut sizeof dataOut size_t numBytesEncrypted 0 CCCryptorStatus result..
How to record and play sound in iPhone app? http://stackoverflow.com/questions/5662297/how-to-record-and-play-sound-in-iphone-app
Change Navigation bar Background image on each navigation http://stackoverflow.com/questions/6692517/change-navigation-bar-background-image-on-each-navigation init autorelease @end if u want to First.png to set navigationBar background image in FirstViewController then in ur FirstViewController.m void viewWillAppear BOOL animated super viewWillAppear animated self.title @ First self.navigationController.navigationBar.. CGRectMake 0 0 320 480 if u want to Second.png to set navigationBar background image in SecondViewController then in ur SecondViewController.m void viewWillAppear BOOL animated super viewWillAppear animated self.title @ Second self.navigationController.navigationBar..
iPhone Authorize.Net SDK integration http://stackoverflow.com/questions/8104806/iphone-authorize-net-sdk-integration registrationRequest.mobileDevice.mobileDescription @ asd registrationRequest.mobileDevice.mobileDeviceId UIDevice currentDevice uniqueIdentifier stringByReplacingOccurrencesOfString @ withString @ _ AuthNet authNetWithEnvironment ENV_TEST.. @ asd registrationRequest.mobileDevice.mobileDeviceId UIDevice currentDevice uniqueIdentifier stringByReplacingOccurrencesOfString @ withString @ _ AuthNet authNetWithEnvironment ENV_TEST AuthNet an AuthNet getInstance an setDelegate self..
Sqlite Database Load Fails - Issue with sqlite prepare statement - iPhone - xCode 4.3.1 http://stackoverflow.com/questions/9887785/sqlite-database-load-fails-issue-with-sqlite-prepare-statement-iphone-xcod getDBPath BOOL success fileManager fileExistsAtPath dbPath if success NSString defaultDBPath NSBundle mainBundle resourcePath stringByAppendingPathComponent @ MyDB.sqlite success fileManager copyItemAtPath defaultDBPath toPath dbPath error.. error localizedDescription Call This Function in ApplicationDidFinishLaunching. Now remove the data base that is in ur bundle currently. MAKE SURE U HAD BACKUP OF IT . And if Possible Delete All the project From Iphone Simulator Folder Coz.. Call This Function in ApplicationDidFinishLaunching. Now remove the data base that is in ur bundle currently. MAKE SURE U HAD BACKUP OF IT . And if Possible Delete All the project From Iphone Simulator Folder Coz sometimes..
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