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  • Odd background image resizing on animating UIView

    - by Woody
    I have a UIView in the middle of a view that I am using as a game playing area (in a 2d cocoa view). This image has a background image of the same size as the view. Resizing the view I use animation to make it look smooth (and that works fine). However, when the animation starts, the background image immediately changes size, tiling or being clipped to a size that when the animation finishes, the background image is physically the same size. I don't want this, I want the image to always fit the view, regardless of the view size. UIImage *bgImage = [UIImage imageNamed:@"head.png"]; ... // resize the image returning another image self.view.backgroundColor = [[UIColor alloc] initWithPatternImage:resizedImage]; [UIView beginAnimations:@"resizeView" context:nil]; [UIView setAnimationDuration:.5]; int localViewSize = ... // work out view sizes self.view.frame = CGRectMake(... ,localViewSize,localViewSize); [UIView commitAnimations]; It looks very odd as it jumps to a different size, then animates to the original size. I am guessing that maybe I would have to make a separate view underneath my main view but is that the only way?

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  • Core Location Best Placement and User Interruption

    - by b.dot
    Hi All, My application uses Core Location in three different views. It's working perfectly. In my first view, I subclass the CLLocationManager and use protocol methods for location updates to my calling class. Before I install the framework and code in my other classes, I was wondering: Is the protocol method the best way? What happens to the Core Location execution if the user exits the view or quits the app while it's trying to get a location fix? Is the location task terminated with the GPS system turned off immediately? If the user simply switches to another view, is it OK to assume that I can start Core Location in the next view without regard to the last? Where should the first update location call be placed. Should the application delegate instantiate the CLLocation Manager class using protocol so that it can update any of the views chosen or should each class instantiate the manager. Any feedback would be appreciated. Thanks.

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  • UIWebView Page Control

    - by Jack
    Hi, I would like to use a UIWebView to display some files (PDF, PPT, DOC) and would like to have the ability to scroll using external controls (ie a couple of buttons that, when pressed skip back and forward a page) and display the current page in a UITextView. Is this possible? I have no experience with javascript, but a friend of mine has suggested that this might be a useful approach. Is his suggestion valid? JP

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  • UIScrollView ImageView with pins on top

    - by Koppo
    To all, I have a UIScrollView which has a UIImageView. I want to show pins on this imageView. When I add pins as subviews of the ImageView everything is great except for when you zoom the scale transform happens on the pins also. I don't want this behavior and want my pins to stay the same. So I choose to add the Pins to another view which sits on top of the ImageView and is also a subview of the UIScrollView. The idea here if you will imagine is to have a layer which hovers over the map and won't scale yet show pins over where I plot them. The pin when added to the layer view don't cale if the ImageView scales. However the issue then bceomes the position of the pins doesn't match the original origin x/y as the ImageView has had a scale transform. Basically this is a custom map of a place with Pins. I am trying to have the Pins float over and not zoom in and out over my ImageView yet remember where I placed them when the zoom happens. Some code scrollView = [[UIScrollView alloc] initWithFrame:viewRect]; scrollView.delegate = self; scrollView.pagingEnabled = NO; scrollView.scrollsToTop = NO; [scrollView setBackgroundColor:[UIColor clearColor]]; scrollView.clipsToBounds = YES; // default is NO, we want to restrict drawing within our scrollview scrollView.bounces = YES; scrollView.autoresizingMask = UIViewAutoresizingFlexibleHeight; scrollView.indicatorStyle = UIScrollViewIndicatorStyleWhite; imageViewMap = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image.png"]]; imageViewMap.userInteractionEnabled = YES; viewRect = CGRectMake(0,0,imageViewMap.image.size.width,imageViewMap.image.size.height); //viewRect = CGRectMake(0,0,2976,3928); [scrollView addSubview:imageViewMap]; [scrollView setContentSize:CGSizeMake(viewRect.size.width, viewRect.size.height)]; iconsView = [[UIView alloc] initWithFrame:imageViewMap.frame]; [scrollView addSubview:iconsView]; Code to add Pin later on some event. [iconsView addSubview:pinIcon]; I am stuck in trying tp figure out how to to get my pins to hover on the map without moving when the scale happens. Thanks

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  • UISwitch within UIScrollview nearly impossible to use....

    - by samsam
    Hi there. I'm using a UISwitch-Component at the bottom of a view that sits within a UIScrollView. Now the problem that appeared, is that the switch is nearly impossible to swipe because the UIScrollView seems to dominate the userinput. Switching works very well by tapping the switch, but from my point of view, most users "switch" the UISwitch instead of tapping. Did anyone of you face the same / or similar problems and managed to come up with a solution? thx in advance sam

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  • viewControllers is empty array

    - by Antonio
    Hi: I'm having a problem using the UITabBarController and can't seem to get anywhere... maybe someone has run into something similar. I have the typical Tab Bar + Navigation app and everything is working great, except when I access options in the More tab. On any other tab, if I log: NSLog(@"%@ \n %@",self.selectedViewController,[self.selectedViewController viewControllers]); I get, for example: 2010-05-29 00:05:13.512 MD[9950:207] <UINavigationController: 0x4c35ad0> ( <MDViewController: 0x4c35910>, <Detalle: 0x9050e80> ) If I access an element in the More tab, I get: 2010-05-29 00:05:13.512 MD[9950:207] <UINavigationController: 0x4c35ad0> ( ) An empty viewControllers array? Am I missing something? Thanks! Antonio

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  • Setting corelocation results to NSNumber object parameters

    - by Dan Ray
    This is a weird one, y'all. - (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation { CLLocationCoordinate2D coordinate = newLocation.coordinate; self.mark.longitude = [NSNumber numberWithDouble:coordinate.longitude]; self.mark.latitude = [NSNumber numberWithDouble:coordinate.latitude]; NSLog(@"Got %f %f, set %f %f", coordinate.latitude, coordinate.longitude, self.mark.latitude, self.mark.longitude); [manager stopUpdatingLocation]; manager.delegate = nil; if (self.waitingForLocation) { [self completeUpload]; } } The latitude and longitude in that "mark" object are synthesized parameters referring to NSNumber iVars. In the simulator, my NSLog output for that line in the middle there reads: 2010-05-28 15:08:46.938 EverWondr[8375:207] Got 37.331689 -122.030731, set 0.000000 -44213283338325225829852024986561881455984640.000000 That's a WHOLE lot further East than 1 Infinite Loop! The numbers are different on the device, but similar--lat is still zero and long is a very unlikely high negative number. Elsewhere in the controller I'm accepting a button press and uploading a file (an image I just took with the camera) with its geocoding info associated, and I need that self.waitingForLocation to inform the CLLocationManager delegate that I already hit that button and once its done its deal, it should go ahead and fire off the upload. Thing is, up in the button-click-receiving method, I test see if CL is finished by testing self.mark.latitude, which seems to be getting set zero...

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  • AudioQueue ate my buffer (first 15 milliseconds of it)

    - by iter
    I am generating audio programmatically. I hear gaps of silence between my buffers. When I hook my phone to a scope, I see that the first few samples of each buffer are missing, and in their place is silence. The length of this silence varies from almost nothing to as much as 20 ms. My first thought is that my original callback function takes too much time. I replace it with the shortest one possible--it re-renqueues the same buffer over and over. I observe the same behavior. AudioQueueRef aq; AudioQueueBufferRef aq_buffer; AudioStreamBasicDescription asbd; void aq_callback (void *aqData, AudioQueueRef inAQ, AudioQueueBufferRef inBuffer) { OSStatus s = AudioQueueEnqueueBuffer(aq, aq_buffer, 0, NULL); } void aq_init(void) { OSStatus s; asbd.mSampleRate = AUDIO_SAMPLES_PER_S; asbd.mFormatID = kAudioFormatLinearPCM; asbd.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked; asbd.mBytesPerPacket = 1; asbd.mFramesPerPacket = 1; asbd.mBytesPerFrame = 1; asbd.mChannelsPerFrame = 1; asbd.mBitsPerChannel = 8; asbd.mReserved = 0; int PPM_PACKETS_PER_SECOND = 50; // one buffer is as long as one PPM frame int BUFFER_SIZE_BYTES = asbd.mSampleRate/PPM_PACKETS_PER_SECOND*asbd.mBytesPerFrame; s = AudioQueueNewOutput(&asbd, aq_callback, NULL, CFRunLoopGetCurrent(), kCFRunLoopCommonModes, 0, &aq); s = AudioQueueAllocateBuffer(aq, BUFFER_SIZE_BYTES, &aq_buffer); // put samples in the buffer buffer_data(my_data, aq_buffer); s = AudioQueueStart(aq, NULL); s = AudioQueueEnqueueBuffer(aq, aq_buffer, 0, NULL); }

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  • how to customize navigationbar color of MFMailComposeViewController?

    - by RAGOpoR
    from this code will show in original color how can i change it to another color? maybe it need to be override? MFMailComposeViewController *mail = [[MFMailComposeViewController alloc] init]; mail.mailComposeDelegate = self; if ([MFMailComposeViewController canSendMail]) { [mail setToRecipients:[NSArray arrayWithObjects:@"[email protected]",nil]]; [mail setSubject:@"support"]; [mail setMessageBody:@"enter your message here" isHTML:NO]; [self presentModalViewController:mail animated:YES]; }

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  • UITextView - text shifts out of view when editing

    - by Jeff
    I have a tableHeaderView with a UITextView in it. The view loads from a nib. The UITextView does not have any scrolling turned on. The reason I am using it is simply that it wraps text over two lines. I gave it just enough room to fit two lines of text. The data that I prepopulate works just fine, and is aligned in the center vertically whether it is two or one line. The problem is that when I edit the cell via the UI, the text shifts up to the point that the top half of it is cut off. When exiting editing, it stays this way. Not sure I have any relevant code to show, but hopefully the explanation makes sense. I can't seem to find anyone else having this issue and I cannot imagine what it could be. I've played around with turning scrolling on and off, toying with the size of the field, and everything else I could play with to no avail. Thanks Jeff

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  • Get Lat, Long from CLLocation

    - by Marco
    Hello i have an CLLocation which is my userLocation, now in another class i have to open the maps app and make a route from the userLocation to another point. But how can i get in the another class the Coordinates of userLocation? please help me i have no idea

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  • JQTouch transition problem

    - by sukk1e
    I have a problem with the jqtouch bottom toolbar. Its a stationary bottom toolbar that is implemented with the iScroll plugin for jqtouch. When I want to switch between a page with a "right" slide transition effect I want to exclude the bottombar from also using the transition effect. The reason for this is because it looks weird when the bottom toolbar slides to the right.

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  • How to dynamically compose a bitmask?

    - by mystify
    Lets say I have to provide an value as bitmask. NSUInteger options = kFoo | kBar | kFooBar; and lets say that bitmask is really huge and may have 100 options. But which options I have, depends on a lot of situations. How could I dynamically compose such a bitmask? Is this valid? NSUInteger options; if (foo) { options = options | kFoo; } if (bar) { options = options | kBar; } if (fooBar) { options = options | kFooBar; } (despite the fact that this would probably crash when doing that | bitmask operator thing to "nothing".

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  • UILabel over a UIToolBar

    - by paul simmons
    Hi, I have put a UILabel over a UIToolbar. It works fine (changing colors & text) but when I click something on the toolbar, from that moment on, UILabel's text color is like 'faded'. I have tried bringing UILabel to front but that did not work. Any suggestions?.

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  • Debugging SIGABRT within NSManagedObjectContext -save:

    - by westsider
    From inside NSManagedObjectContext -save: I am getting this message: Assertion failed: (_Unwind_SjLj_Resume() can't return), function _Unwind_SjLj_Resume, file /SourceCache/libunwind/libunwind-24.1/src/Unwind-sjlj.c, line 326. Program received signal: “SIGABRT”. warning: Unable to read symbols for /Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.2.1 (8C148)/Symbols/Developer/usr/lib/libXcodeDebuggerSupport.dylib (file not found). This happens when I delete an Experiment object with to-many with Run which has to-many with Sample which has to-one with Data. Experiment also has to-many with Page which has to-many with Display which has to-many to Run. I mention this to point out the cyclical nature of the graph. Here is a simplified graph of model: I had been using Delete Rules but have now switched to "No Action" delete rules in combination with -prepareForDeletion methods for all of these classes. This change made no difference. In both cases, the error message is the same. Interestingly, when I relaunch the app, all the objects that were marked for deletion have been deleted. Also, if an Experiment has no Run objects, then deletion works without incidence. For that matter, deleting a single Run from an Experiment also works. I am hoping that someone has seen something like this and can offer advice on what would cause this. Or, if someone has advice on how to get libXcodeDebuggerSupport.dylib for iOS 4.2.1, that might also be helpful. Update: I followed advice found here and was able to get Xcode to find libXcodeDebuggerSupport.dylib for iOS 4.2.1. But this did not help at all in diagnosing problem - which persists.

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  • How to change disclosure style when user enters in edit mode of a UITableView?

    - by R31n4ld0
    Hello, guys. I have a UITableView that in 'normal' mode, show a UITableViewCellAccessoryDisclosureIndicator meaning if the user taps the row, another list is showed, like HIG says: "Disclosure indicator. When this element is present, users know they can tap anywhere in the row to see the next level in the hierarchy or the choices associated with the list item. Use a disclosure indicator in a row when selecting the row results in the display of another list. Don’t use a disclosure indicator to reveal detailed information about the list item; instead, use a detail disclosure button for this purpose." When the user tap the edit button in the top bar of the UITableView, I think I have to change the disclosure because if the user tap it, a view for changing the information of the current row is showed (see the bold line above), again, like HIG says: "Detail disclosure button. Users tap this element to see detailed information about the list item. (Note that you can use this element in views other than table views, to reveal additional details about something; see “Detail Disclosure Buttons” for more information.) In a table view, use a detail disclosure button in a row to display details about the list item. Note that the detail disclosure button, unlike the disclosure indicator, can perform an action that is separate from the selection of the row. For example, in Phone Favorites, tapping the row initiates a call to the contact; tapping the detail disclosure button in the row reveals more information about the contact." Have I miss understood the HIG, or I really do have to change the disclosure style in edit mode of UITableView? If yes, how I can intercept the edit mode when the user taps the Edit button? Thanks in advance.

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  • how to set UISwitch pointer to access switch from one uiviewcontroller another uiviewcontroller

    - by Rkm
    System UIViewcontroller has button event.Tap on Button fire InfoTableviewController. InfoTableview has UISwitch . How to set NSMutableArray of UIswitch pointer for System UIViewcontroller to access switch . SystemUIviewcontroller button event - (IBAction) Info_Button_Clicked:(id) sender { // pushcontroller Info *info = [[Info alloc]initWithNibName:@"Info" bundle:[NSBundle mainBundle]]; [self.navigationController pushViewController:info animated:YES]; [info release]; } Here for Info TableviewController // Customize the appearance of table view cells. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = nil; if ([indexPath section] == 0) { static NSString *kDisplayCell_ID = @"DisplayCellID"; cell = [self.tableView dequeueReusableCellWithIdentifier: kDisplayCell_ID]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier: kDisplayCell_ID] autorelease]; cell.selectionStyle = UITableViewCellSelectionStyleNone; } else { // the cell is being recycled, remove old embedded controls UIView *viewToRemove = nil; viewToRemove = [cell.contentView viewWithTag:1]; if (viewToRemove) [viewToRemove removeFromSuperview]; } cell.textLabel.text = [[self.Soundarray objectAtIndex: indexPath.row] valueForKey:@"labelKey"]; UIControl *control = [[self.Soundarray objectAtIndex: indexPath.row] valueForKey:@"viewKey"]; [cell.contentView addSubview:control]; return cell; } }

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  • UINavigationController placement problem

    - by Chonch
    Hey, I'm having this problem and I can't seem to figure out why! I want to use a UINavigationController, but I don't want to use it through out the entire application. So, in the UIViewController I was to add it to, I define: UINavigationController *navigationController; and the @property, @synthesize and dealloc. In the viewDidLoad method, I add: navigationController = [[UINavigationController alloc] init]; navigationController.navigationBar.barStyle = UIBarStyleBlack; and when the relevant UIViewController is loaded, I add: [navigationController pushViewController:viewController animated:NO]; and make the old view disappear and the UINavigationController's view to appear. Everything works fine except that the navigation bar appears about 20pixels too low (dragging the entire view down and out of the screen). If I set the UINavigationController's view frame parameter manually to start at 0,0, it jumps there, but only after about a second, so that you can see the navigation bar starting at a certain location and only then jumping to another (and it is ugly!). I have done the exact same thing in the past and had no problem with it. Does anyone know what may cause this? Thanks,

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  • Compile C# into objective-C

    - by Ali Shafai
    Now that monotouch is being banned, I was wondering if there is a way to translate C# (or some other modern language for that matter) into objective-C? I won't mind using apple's api as long as I don't have to declare my variables in 3-4 stages (ivar-property-synthesize-dealloc). All I want is a less wordy language to concentrate on my intent and not on the compiler syntax. unfortunately apple in its arrogance thinks objective-c is a "modern" language and if you are looking for an alternative (monotouch) it's because you are incapable of coding. also if you don't find programming in itunes; sorry, xcode enjoyable, it is not because there are better alternatives, it's because you are stupid. anyway back to my original question: can it be done?

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  • How do I code a green button in UIActionSheet?

    - by Joshua
    I am using the code: { randomstatus=0; msg=[[NSString alloc]initWithFormat:@"Good job, do you want to continue?"]; UIActionSheet *actionSheet=[[UIActionSheet alloc]initWithTitle:msg delegate:self cancelButtonTitle:@"No" destructiveButtonTitle:@"Yes" otherButtonTitles:nil]; [actionSheet showInView:self.view]; [actionSheet release]; [msg release]; } I don't want to change the code, but I need the "destructiveButton" to be green instead of red. Is this possible, or do i need to use a different button?

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  • Apple push notifications and Emoji characters...

    - by Friendlydeveloper
    Hello, I recently found this very interesting article on APNS and Emoji characters: EASY APNS - Just for fun It contains a list with all supported Emojis. However, I couldn't get them to display in my push notifications. All I get is the code, not the image. For example, if I add \ue415 (a smiley) to my message, I never see the image, just the code. Any idea what I'm doing wrong? Thanks in advance.

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  • When we should use pushScene and replaceScene in cocos2d ?

    - by srikanth rongali
    Hi, I cocos2d, I am using pushScene and replaceScene to move to next scene. But, I am confused which we should use? When I am using replaceScene in some places app is crashing and giving errors like -[UITextView length]: unrecognized selector sent to instance 0x842a750 Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[UITextView length]: unrecognized selector sent to instance 0x842a750' But, in my program I am not passing length to UITextView. My program is in this way In scene1 I have UITextView, and I am replacing this scene with scene2. Then -(id)buttonPressed:(id)sender { [description removeFromSuperview]; // It is the textView(description) CCScene *Scene = [CCScene node]; CCLayer *Layer = [scene2 node]; [Scene addChild:Layer]; [[CCDirector sharedDirector] setAnimationInterval:1.0/60]; [[CCDirector sharedDirector] replaceScene: Scene]; } But, when I am using pushScene in presence of replaceScene it is working good. Please clarify me which one should use in which cases ? Thank You

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  • Automatically created NSManagedObject subclasses don't use ARC

    - by Jordan
    My project is ARC enabled (the build settings have Objective-C Reference Counting set to YES). There are no file exceptions to this, it is enabled project wide. (Latest stable version of Xcode). When I create an NSManagedObject subclass via File New for a Core Data entity, the generated header uses the following in its property declarations: @property (nonatomic, retain) But 'retain' is not ARC!! Is this a bug, or is there something I'm missing or not understanding? There are no build warnings - if this is a bug though, how can I remedy it?

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  • Rotation of a single UIViewController in a UITabBarController

    - by burki
    Hi! I have a UITabBarController with four UINavigationControllers. Well, I want to enable the rotation just for one of the four UIViewControllers. According to Apple's doc you shouldn't subclass UITabBarController, so I don't wanna do that. All UIViewControllers should support the same orientations that it works, but that's not what I want. How can the single UIViewController, which should support the rotation, detect that the device has changed its orientation? Because unless all the UIViewControllers added to the UITabBarControllers support the same orientation, the methods of the UIViewController for managing the rotation aren't called. I've been searching now for a while, but I haven't already found a pleasant answer. I guess a lot of developers wonder how to manage that. I already thank you for your answer.

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