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  • UIPopover Sizing

    - by Echilon
    I have a UIPopoverController which I'm trying to show from a UIBarButtonItem in a navigation bar. Despite setting the resizing mask for the tableview inside the popover's content viewController, it takes up the whole height of the screen. The only thing which has any effect on the content size is menuPopover.contentViewController.view setFrame:CGRect. I'm using the code below to show the popover inside the left hand side of a UISplitViewController // menuPopover and editVc are properties on the parent viewController menuPopover = [[UIPopoverController alloc] initWithContentViewController:editVc]; [menuPopover presentPopoverFromBarButtonItem:btnMenu permittedArrowDirections:UIPopoverArrowDirectionAny animated:true]; [menuPopover setPopoverContentSize:CGSizeMake(400, 500) animated:true]; [menuPopover.contentViewController.view setFrame:CGRectMake(0,0,400, 500)]; Yet this is what I'm seeing. The arrow shows where the menu button was which showed the popover: http://imageshack.us/photo/my-images/545/screenshot20120312at191.png/ It's as though the content view is just expanding vertically.

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  • NSMutableDictionary isn't stick around long enough

    - by Sean Danzeiser
    Sorry, beginner here . . . So I create an NSMutableDictionary in my app delegate when the application launches, and then later pass it on to a view controller, as it contains options for the VC like a background image, a url I want to parse, etc. Anyway, i wrote a custom init method for the VC, initWithOptions, where I pass the dictionary on. I'm trying to use this dictionary later on in other methods - so I created a NSMutableDictionary property for my VC and am trying to store the passed options dictionary there. However, when I go to get the contents of that property in later methods, it returns null. If i access it from the init method, it works. heres some sample code: -(id)initWithOptions:(NSMutableDictionary *)options { self = [super init]; if (self) { // Custom initialization self.optionsDict = [[NSMutableDictionary alloc]initWithDictionary:options]; NSLog(@"dictionary in init method %@",self.optionsDict); that NSLog logs the contents of the dictionary, and it looks like its working. then later when I do this: - (void)viewDidLoad { SDJConnection *connection = [[SDJConnection alloc]init]; self.dataArray = [connection getEventInfoWithURL:[dict objectForKey:@"urlkey"]]; NSLog(@"dictionary in connection contains: %@", [dict objectForKey:@"urlkey"]); [_tableView reloadData]; the dictionary returns null. Ive tried adjusting the property attributes, and it didn't work with either strong or retain. Any ideas?? THANKS!!

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  • Adding ivars to NSManagedObject subclass

    - by The Crazy Chimp
    When I create an entity using core data then generate a subclass of NSManagedObject from it I get the following output (in the .h): @class Foo; @interface Foo : NSManagedObject @property (nonatomic, retain) NSString *name; @property (nonatomic, retain) NSSet *otherValues; @end However, in my .m file I want to make use of the name and otherValues values. Normally I would simply create a couple of ivars and then add the properties for them as I required. That way I can access them in my .m file easily. In this situation would it be acceptable to do this? Would adding ivars to the .h (for name and otherValues) cause any unusual behaviour in the persistance & retrieval of objects?

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  • Changing UINavigationBar font in Swift

    - by dcgoss
    I have a UINavigationBar with a title in the middle. I have added a custom font ("Comic_Andy.ttf") to my app (I have checked info.plist to make sure it's listed, and I have checked the Copy Bundle Resources to make sure it has been added), and I would like the title of the UINavigationBar to be displayed in that font. From what I can gather it seems as though I'm supposed to use this in my ViewController: myNavigationBar.titleTextAttributes = [NSFontAttributeName: UIFont(name: "Comic_Andy", size: 22)] I placed that method in the viewDidLoad function of the ViewController. I have also tried this in the didFinishLaunchingWithOptions function of the AppDelegate: UINavigationBar.appearance().titleTextAttributes = [NSFontAttributeName: UIFont(name: "Comic_Andy", size: 22)] I am programming in Swift, in XCode 6 Beta 6. Many resources regarding this task have mentioned using a method called setTitleTextAttributes, which is nowhere to be seen. I can't figure it out for the life of me - I've probably spent close to 3 hours on it by now - I have checked every StackOverflow answer, every website, so please do not mark this as a duplicate. Many thanks in advance!

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  • Common views in viewControllers - Code re-usability

    - by Nitish
    I have few common views in most of my viewControllers. What I noticed is that I can reuse single code for all viewControllers which is absolutely wise. For this I decided to create a class Utils which has static methods like +(void)createCommonViews:(float)yAxis:(NSString*)text; In my case common views are three labels and two images. Problem : I am not able to add these views from Utils. I am wondering how can I send self as a parameter so that I may add the views from Utils. It may be wrong to add views outside the viewController. In that case what can be the solution? Taking all these views in a UIView, setting return type of Utils method as UIView and then adding UIView to viewController(after calling method from viewController) might solve my problem. But what I am looking for is some other solution. Thanks, Nitish

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  • Load NSAttributedString from File

    - by Wayfarer
    Is there a way to have some sort of rich text in a file, and load the file into an NSAttributedString? I looked into loading a .rtf file into an NSAttributed String: NSString *filePathFooter = [[NSBundle mainBundle] pathForResource:kFooterFileName ofType:@"rtf"]; NSError *error = nil; NSAttributedString *string = [[NSAttributedString alloc] initWithFileURL:[NSURL URLWithString:filePathFooter] options:nil documentAttributes:NULL error:&error]; But this leaves me with: Error Domain=NSCocoaErrorDomain Code=258 "The operation couldn’t be completed. (Cocoa error 258.)" Is there a way to do this?

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  • iphone SDK: How to check user set up a valid IP , Netmask , Router ???

    - by WebberLai
    It is simple to understand after this pic. I add fewtextfields in tableview I already set the keyboard style is number pad. Now the problems is 1.Do I need to create 12 textfields ???ex. UITextField *ip1,ip2,ip3,ip4....or just set different tag for textfield ? 2.How to check user enter wrong char not 3 valid numbers (even the keyboard is set number pad,but it might can paste words...) 3.How to check user did follow this setting rules ??? <1If IP1 is 0~223 , IP2 need to be set 0~255,IP3,IP4 both are 0~255 <2If IP1 is 172 ,IP2 is set 16~31.IP3,IP4 both are 0~255; If IP1 is 192 ,IP2 must be 168.IP3 IP4 are 0~255 <3Netmask set default 255.255.255.0 <4Router 0~223 ,0~255 ,0~255 ,0~255 This IP setting rules is my friends tech me this ...I not sure the rules is right or not?

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  • How to display a person record just after saving his data to iPhone Address Book?

    - by camelCase
    this is my code and it works flawless, where my_value is a string with separator ','. everythign works fin but i'd like to display the person record from the address book after i saved it, so in the function if(isSaved) { // **** code here *** } here the complete function - (void) addToAgenda: (NSString*) my_value{ //NSArray *strings = [my_value componentsSeparatedByString: @","]; NSArray *dati=[[NSArray alloc] initWithArray:[my_value componentsSeparatedByString:@","]]; NSString *userwebsite = [dati objectAtIndex:0]; NSString *fname = [dati objectAtIndex:1]; NSString *lname = [dati objectAtIndex:2]; NSString *useremail = [dati objectAtIndex:3];; NSString *usermobile = [dati objectAtIndex:4]; NSString *usercompany = @"xxx"; ABRecordRef aRecord = ABPersonCreate(); CFErrorRef anError = NULL; // fisrst name ABRecordSetValue(aRecord, kABPersonFirstNameProperty, fname, &anError); // last name ABRecordSetValue(aRecord, kABPersonLastNameProperty, lname, &anError); // Phone Number. ABMutableMultiValueRef multi = ABMultiValueCreateMutable(kABMultiStringPropertyType); ABMultiValueAddValueAndLabel(multi, (CFStringRef)usermobile, kABWorkLabel, NULL); ABRecordSetValue(aRecord, kABPersonPhoneProperty, multi, &anError); CFRelease(multi); // Company ABRecordSetValue(aRecord, kABPersonDepartmentProperty, usercompany, &anError); // email NSLog(@"%@", useremail); ABMutableMultiValueRef multiemail = ABMultiValueCreateMutable(kABMultiStringPropertyType); ABMultiValueAddValueAndLabel(multiemail, (CFStringRef)useremail, kABWorkLabel, NULL); ABRecordSetValue(aRecord, kABPersonEmailProperty, multiemail, &anError); CFRelease(multiemail); // website NSLog(@"%@", userwebsite); ABMutableMultiValueRef multiweb = ABMultiValueCreateMutable(kABMultiStringPropertyType); ABMultiValueAddValueAndLabel(multiweb, (CFStringRef)userwebsite, kABWorkLabel, NULL); ABRecordSetValue(aRecord, kABPersonURLProperty, multiweb, &anError); CFRelease(multiemail); if (anError != NULL) NSLog(@"error while creating.."); CFStringRef personname, personlname, personcompind, personemail, personwebsite, personcontact; personname = ABRecordCopyValue(aRecord, kABPersonFirstNameProperty); personlname = ABRecordCopyValue(aRecord, kABPersonLastNameProperty); personcompind = ABRecordCopyValue(aRecord, kABPersonDepartmentProperty); personemail = ABRecordCopyValue(aRecord, kABPersonEmailProperty); personwebsite = ABRecordCopyValue(aRecord, kABPersonURLProperty); personcontact = ABRecordCopyValue(aRecord, kABPersonPhoneProperty); ABAddressBookRef addressBook; CFErrorRef error = NULL; addressBook = ABAddressBookCreate(); BOOL isAdded = ABAddressBookAddRecord (addressBook, aRecord, &error); if(isAdded){ NSLog(@"added.."); } if (error != NULL) { NSLog(@"ABAddressBookAddRecord %@", error); } error = NULL; BOOL isSaved = ABAddressBookSave (addressBook, &error); if(isSaved) { // **** code here *** } if (error != NULL) { NSLog(@"ABAddressBookSave %@", error); UIAlertView *alertOnChoose = [[UIAlertView alloc] initWithTitle:@"Unable to save this time" message:nil delegate:self cancelButtonTitle:nil otherButtonTitles:@"Ok", nil]; [alertOnChoose show]; [alertOnChoose release]; } CFRelease(aRecord); CFRelease(personname); CFRelease(personlname); CFRelease(personcompind); CFRelease(personcontact); CFRelease(personemail); CFRelease(personwebsite); CFRelease(addressBook); }

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  • Unable to store NSNumber in core data

    - by Kamlesh
    Hi all, I am using Core Data in my application.I have an attribute named PINCode which has property Int64. Now,in my app I take the PIN code from a text field,convert it into NSNumber and try to store as an attribute value for an entity.But I am unable to do so.The exception that it shows on the console is:- Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Unacceptable type of value for attribute: property = "PINCode"; desired type = NSNumber; given type = NSCFString; value = 121.' Here is the code:- (Conversion to NSNumber):- NSString *str= txtPINCode.text; NSNumber *num = [[NSNumber alloc]init]; int tempNum = [str intValue]; num = [NSNumber numberWithInt:tempNum]; (Storing in core data entity):- NSManagedObjectContext *context = [appDelegate managedObjectContext]; NSManagedObject *newContact; newContact = [NSEntityDescription insertNewObjectForEntityForName:@"MemberTable" inManagedObjectContext:context]; [newContact setValue:num forKey:@"PINCode"]; The app crashes at this point.I am unable to find the reason of crash.I have also tried to check the conversion by the following code:- NSNumber *testNumber = [[NSNumber alloc]init]; id test = num; BOOL testMe = [test isKindOfClass:(Class)testNumber]; Can anybody help me with this?? Thanks in advance.

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  • NSFetchedResultsController doesn't fetch up the child-parent moc chain?

    - by Kronusdark
    I cannot find any clarification on this, so it may be a bug. Problem is, I have a series of parent-child Managed Object Context's. When I save on a child context the changes get pushed up to the parent, and I can fetch using a plain old NSFetchRequest. However, if I rely on an NSFetchedResultsController to pull these changes into a sibling context to the first, they do not see them. calling -(void)performFetch: error; doesn't seem to pull the changes either. After a restart of the app, all new data is available. My hypothesis is that NSFetchedResultsController only fetches from its current context and will not follow the chain to the persistent store. Can someone please set me straight here? Am I going to have to use notifications to monitor changes on other contexts? and finally, is this mentioned somewhere in the doc's? I cannot find it for the life of me.

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  • Conversion Fahrenheit to celsius programmatically

    - by Doom
    In my project, want to show the weather in fahrenheit first, then if the user wants clickes on conversion, needs to show the weather in celsius. My code is NSNumber *metric = [[NSUserDefaults standardUserDefaults] objectForKey:@"metric"]; NSLog(@"Metric is %@", metric); CGFloat aFloat = [speed floatValue]; CGFloat tFloat = [temperature floatValue]; CGFloat tempFloat = (tFloat-30)/2; NSNumber * p_Number = [NSNumber numberWithFloat:tempFloat]; //Convert mph to kmph if ([metric boolValue]) { [windValueLabel setText:[NSString stringWithFormat:@"%.2f kmph", aFloat * 1.6] ]; temperatureLabel.text = [NSString stringWithFormat:@"%@", p_Number]; } else{ [windValueLabel setText:[NSString stringWithFormat:@"%.2f mph", aFloat / 1.6]]; temperatureLabel.text = [NSString stringWithFormat:@"%@", temperature]; } When u start the app, its working and showing temperature in fahrenheit, but crashes at celsius man... is that the current conversion. help me out guys

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  • AVPlayer seeking to a different point after app resume

    - by CGuess
    I have an AVPlayer, the video in it is ~2 seconds long. After the video plays, if the app goes to the background and reenters the foreground I need the video to still be shown exactly as it was when the app was exited. The AVPlayer sticks around just fine, however when I reenter the app from the background the video appears to be seeked to the middle of the video. However, if I just play the video, it starts from the beginning, so it doesn't seem like it actually seeked and is just showing a preview image. I've tried to auto-seek the video to the end on relaunch but nothing happens . Nothing I can figure out or find in the docs would describe this behavior. Any tips on having the video launch either at the beginning or end?

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  • UIActionSheet With PickerView not showing up in iPad

    - by user717452
    I am using the following code to add an actionsheet with a picker view on it to my app. From the iPhone, it displays perfectly, but when viewing on iPad (Universal app), it shows a very small pickerview with none of the other buttons right on the center of the page. UIActionSheet *menu = [[UIActionSheet alloc] initWithTitle:@"Select Chapter" delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:@"Select" otherButtonTitles:nil]; // Add the picker UIPickerView *pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0,185,0,0)]; pickerView.delegate = self; pickerView.showsSelectionIndicator = YES; // note this is default to NO [menu addSubview:pickerView]; [menu showFromTabBar:self.tabBarController.tabBar]; [menu setBounds:CGRectMake(0,0,320, 700)]; [pickerView release]; [menu release];

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  • How do I set default values on new properties for existing entities after light weight core data migration?

    - by Moritz
    I've successfully completed light weight migration on my core data model. My custom entity Vehicle received a new property 'tirePressure' which is an optional property of type double with the default value 0.00. When 'old' Vehicles are fetched from the store (Vehicles that were created before the migration took place) the value for their 'tirePressure' property is nil. (Is that expected behavior?) So I thought: "No problem, I'll just do this in the Vehicle class:" - (void)awakeFromFetch { [super awakeFromFetch]; if (nil == self.tirePressure) { [self willChangeValueForKey:@"tirePressure"]; self.tirePressure = [NSNumber numberWithDouble:0.0]; [self didChangeValueForKey:@"tirePressure"]; } } Since "change processing is explicitly disabled around" awakeFromFetch I thought the calls to willChangeValueForKey and didChangeValueForKey would mark 'tirePresure' as dirty. But they don't. Every time these Vehicles are fetched from the store 'tirePressure' continues to be nil despite having saved the context.

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  • Import XCode project inside another XCode project

    - by bruno
    I imported an XCode project inside another XCode project. I dragged and dropped project B inside project A like in How to Call Xcode Project In Another Xcode Project.......? Next, i imported a class from project B in project A, so i could use a method but i gave me an error "ClassTemp.h' file not found". From what i´ve read this should have worked. Do i have to do some kind of configuration for it to work?

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  • ViewController access data

    - by Giovanni Filaferro
    Today i would ask you if there is a way to call a method of another view controller just not initializing it or just how to get that viewController as a global variable declared in .h file. Help me please. I'm using a PageViewController and I have to use a method of the contentViewController alredy initialized. here I create my ViewControllers: - (void)createTheContent { NSLog(@"createTheContent"); pageController = nil; //[pageController removeFromParentViewController]; //[pageController awakeFromNib]; NSDictionary *options = [NSDictionary dictionaryWithObject:[NSNumber numberWithInteger:UIPageViewControllerSpineLocationMin] forKey: UIPageViewControllerOptionSpineLocationKey]; self.pageController = [[UIPageViewController alloc] initWithTransitionStyle:UIPageViewControllerTransitionStylePageCurl navigationOrientation:UIPageViewControllerNavigationOrientationHorizontal options: options]; pageController.dataSource = self; [[pageController view] setFrame:CGRectMake(0, 0, 320, 365)]; initialViewController = [self viewControllerAtIndex:0]; NSMutableArray *viewControllers = [NSArray arrayWithObject:initialViewController]; [pageController setViewControllers:viewControllers direction:UIPageViewControllerNavigationDirectionForward animated:NO completion:nil]; [self addChildViewController:pageController]; [[self view] addSubview:[pageController view]]; [pageController didMoveToParentViewController:self]; } here are my propertys in .h file: contentViewController *initialViewController; } //Page View Controller Properties @property (strong, nonatomic) UIPageViewController *pageController; @property (strong, nonatomic) NSArray *pageContent; @property (strong, nonatomic) NSMutableArray *pageStrings; @property (strong, nonatomic) id dataObject;

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  • Raw Video file from website

    - by Charlie
    I would like to make an app that will download videos files that can be played later. At first i thought I could have a UIWeb view and then try to access the cache of it and get the file that way but unfortunately i don't have access to that. After trying that my next thought would be get the direct link to the video file. Essentially what download helper does on fire fox. Any idea of where i could look at for help or any body have any better idea? Is there any stringByEvaluatingjavascript that might be of use or is there away to access the cache on a webview in your own app? Thanks for any help!

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  • Received memory warning and app crashes - iphone

    - by Anand Gautam
    I am creating an app using ARC but my app is crashing due to Received memory warning. The App is working fine in simulator. But in case of iphone device, If i run the app for few minutes then on doing anything, the app crashes straightaway. I have checked my app by xcode instrument. My app folder size is 6 MB but all memory allocation is showing 63 MB on xcode instrument. Because of this reason, presentViewController-Animated-Completion is getting slow during navigation. Does anyone have any solution why this is happening?

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  • Code to show UIPickerview under clicked UITextField

    - by Chris F
    I thought I'd share a code snippet where I show a UIPickerView when you click a UITextField. The code uses a UIPickerView, but there's no reason to use a different view controller, like a UITableViewController that uses a table instead of a picker. Just create a single-view project with a nib, and add a UITextField to the view and make you connections in IB. // .h file #import @interface MyPickerViewViewController : UIViewController <UIPickerViewDelegate, UIPickerViewDataSource, UITextFieldDelegate> - (IBAction)dismissPickerView:(id)sender; @end // .m file #import "MyPickerViewViewController.h" @interface MyPickerViewViewController () { UIPickerView *_pv; NSArray *_array; IBOutlet __weak UITextField *_tf; BOOL _pickerViewShown; } @end @implementation MyPickerViewViewController - (void)viewDidLoad { [super viewDidLoad]; _pickerViewShown = NO; _array = [NSArray arrayWithObjects:@"One", @"Two", @"Three", @"Four", nil]; _pv = [[UIPickerView alloc] initWithFrame:CGRectZero]; _pv.showsSelectionIndicator = YES; _pv.dataSource = self; _pv.delegate = self; _tf.delegate = self; _tf.inputView = _pv; } - (IBAction)dismissPickerView:(id)sender { [_pv removeFromSuperview]; [_tf.inputView removeFromSuperview]; [_tf resignFirstResponder]; _pickerViewShown = NO; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } - (BOOL)textFieldShouldBeginEditing:(UITextField *)textField { if (!_pickerViewShown) { [self setRectForPickerViewRelativeToTextField:textField]; [self.view addSubview:_tf.inputView]; _pickerViewShown = YES; } else { [self dismissPickerView:self]; } return NO; } - (void)setRectForPickerViewRelativeToTextField:(UITextField*)textField { CGFloat xPos = textField.frame.origin.x; CGFloat yPos = textField.frame.origin.y; CGFloat width = textField.frame.size.width; CGFloat height = textField.frame.size.height; CGFloat pvHeight = _pv.frame.size.height; CGRect pvRect = CGRectMake(xPos, yPos+height, width, pvHeight); _pv.frame = pvRect; } - (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component { return [_array objectAtIndex:row]; } - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView { return 1; } - (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component { return _array.count; } - (void) pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component { _tf.text = [_array objectAtIndex:row]; [self dismissPickerView:self]; } @end

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  • How to add objects to NSArray from a different class with ARC

    - by Space Dust
    I needed to convert my code to ARC. I have an NSArray that I use to draw a path. I fill the objects of NSArray values from a different class. Problem is after converting to ARC, NSArray returns always null I can not see what I am doing wrong. bug.h @interface Ladybug : CCSprite <CCTargetedTouchDelegate>{ CCArray *linePathPosition; } @property (nonatomic, strong) CCArray *linePathPosition; @end bug.m @synthesize linePathPosition; -(id) init { if( (self=[super init] )) { self.linePathPosition = [[CCArray alloc] init]; } return self; } -(void) updatePosition:(CGPoint) position { [self.linePathPosition addObject:[NSValue valueWithCGPoint:position]]; NSLog(@"line path %@",linePathPosition); } -(void) breakMoveLadyBug { [self.linePathPosition removeAllObjects]; } In main .m - (void)ccTouchMoved:(UITouch *)touch withEvent:(UIEvent *)event { Ladybug *ladybug1 = (Ladybug *)[self getChildByTag:99]; CCMotionStreak* streak = (CCMotionStreak *)[self getChildByTag:999]; CGPoint touchLocation = [touch locationInView: [touch view]]; CGPoint curPosition = [[CCDirector sharedDirector] convertToGL:touchLocation]; if (ladybug1.isSelected) { streak.position = curPosition; [ladybug1 updatePosition:curPosition]; NSLog(@"Cur position %@",NSStringFromCGPoint(curPosition)); if (!ladybug1.isMoving) { [ladybug1 startMoveLadyBug]; } } } Log: Cur position {331, 110} line path (null) What am I doing wrong? What is the proper way to define and init NSArray with ARC?

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  • UITableViewCell imageView images loading small even when they are the correct size!

    - by Alex Barlow
    Im having an issue whilst loading images into a UITableViewCell after an asynchronous download and placement into an UIImage variable.. The images appear smaller than they actually are! But when scrolled down and scrolled back up to the image, or the whole table is reloaded, they appear at the correct size... Here is a code excerpt... - (void)reviewImageDidLoad:(NSIndexPath *)indexPath { ThumbDownloader *thumbDownloader = [imageDownloadsInProgress objectForKey:indexPath]; if (thumbDownloader != nil) { UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:thumbDownloader.indexPathInTableView]; [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:0.4]; [self.tableView cellForRowAtIndexPath:indexPath].imageView.alpha = 0.0; [UIView commitAnimations]; cell.imageView.image = thumbDownloader.review.thumb; [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:0.4]; [self.tableView cellForRowAtIndexPath:indexPath].imageView.alpha = 1.0; [UIView commitAnimations]; } } Here is an image of the app just after calling this method.. http://www.flickr.com/photos/arbarlow/5288563627/ After calling tableView reloadData or scrolling around the appear correctly, go the the next flickr image, to see the normal result, but im sure you can guess that.. Does anyone have an ideas as to make the images appear correctly? im absolutely stumped?! Regards, Alex iPhone noob

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  • How to enable camera feature in a sencha touch application using phonegap?

    - by Fabre
    I have developed one application in sencha touch2. I want to design a page in such a way that The page has a default image and one button below that. By clicking that button device camera should open(device mainly iPad and iPhone) and after capturing the image lets see it stored in a folder named as "capture" in your device. Then that captured image should replace that default image. I want to use Phonegap compulsorily. I have seen phone gap APIs for camera but I don't get it how to use it exactly. I am using MAC and Xcode for development.

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  • measure rendered html in javascript without affecting the measurement

    - by drawnonward
    I am doing pagination in javascript. This is typographic pagination, not chopping up database results. For the most part it works, but I have run into a heisenberg issue where I cannot quite measure text without affecting it. I am not trying to measure text before it is rendered. I want the actual position it shows up at on screen, so I can paginate to where it is naturally wrapped. I am measuring the vertical position of characters, not the horizontal width of strings. The way I do this is similar to this answer in that I am applying a style to a block of text, then measuring the position of the newly created span. If the span does not reach the end of the page, I clear it and make a new span in a linear search. The problem is that the anti-aliased sub-pixel text layout is different when the span is applied. In rare cases, this causes the text to wrap differently when I measure it. I have only seen this when wrapping at a hyphen, and I assume it would not happen when wrapping at white space. As a concrete example, "prepared-he" is the string I am having trouble with. When I measure up to "prepare" it appears, as expected, to be within the current page. When I measure "prepared" the whole phrase wraps down to the next line, moving it to the next page, so it looks like the "d" is the character to break at. I break the text between "prepare" and "d-he" and that is wrong. Trying to evaluate individual characters opens a whole can of worms I would rather avoid. The wrapping changes because, with the new span, the line is 1 pixel wider. A solution to my problem could either be a better way to measure text using javascript, or a way to wrap text in a new element without affecting layout. I have tried setting margin-right:-1px for the class of the span being created to wrap the text. This had no noticeable effect. I am doing this in a UIWebView on the iPhone. There are some measurement related calls that are available in normal WebKit that are not available here. For example, Range does not have getBoundingClientRect or support setting an offset other than 0 in setStart or setEnd. Thank you

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  • How to execute statements in order in objective c

    - by Vu Tu?n Anh
    When i tap on my button, my function was called [myBtn addTarget:self action:@selector(myFunction) forControlEvents:UIControlEventTouchUpInside]; In my function, a collection of complex statement will be executed and take a litte bit time to run, so i want to show Loading (UIActivityIndicatorView) as the following: -(void) addTradeAction { //Show Loading [SharedAppDelegate showLoading]; //disable user interaction self.view.userInteractionEnabled = NO; //execute call webservice in here - may be take 10s //Hide Loading [ShareAppDelegate hideLoading]; } When tap on myBtn (my Button) - after 3s or 4s, [ShareAppDelegate showLoading] was called. It is unusual when i use [ShareAppDelegate showLoading] on other Function, - it work very nice, i mean all the statement be executed in order. All i want, when i tap on My Button, Loading will be called immediatelly. Tks in advance

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  • Retrieve the CAKeyframeAnimationKey's key in AnimationDidStop

    - by JacktheSparrow
    I have multiple CAKeyframeAnimation objects, each with a unique key like the following: ..... [myAnimation setValues:images]; [myAnimation setDuration:1]; .... [myLayer addAnimation:myAnimation forKey:@"unique key"]; My question is, if I have multiple animation like this and each with a unique key, how do I retrieve their keys in the method AnimationDidStop? I want to be able to do something like this: -(void)animationDidStop:(CAAnimation*)animation finished:(BOOL)flag{ if(..... ==@"uniquekey1"){ //code to handle this specific animation here: }else if(.... ==@"uiquekey2"){ //code to handle this specific animation here: } }

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