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• download a complete folder

  - by Christian

  Hi, in my app I use several png-graphics. For the present version they are installed with the app in the folder "graphic". I made while programming. Now I need some more png-graphics and I don't want to make each time an app-update. How can I manage it, that the app is downloading the png-files from my webserver without knowing the name. I am looking for something which compares the files on the webserver with the files on the iPhone and if there is a new (or newer) file download it. Or is it possible to make an plist-file with the graphics??

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• Why is my view not resizing after rotating?

  - by E-Madd

  I'm only supporting the portrait orientation, but both the right-side-up and upside-down versions. Why do my subviews not resize appropriately? There's a status bar sized black space at the top of the view. If I change tabs and come back, it's corrected.

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• UINavigationController's back button disappears?

  - by QAD

  I notice something strange happens to one of my view controller: the back button disappears, yet it's possible to go back to previous view controller by tapping the top left corner (i.e where the button should reside). In my entire file there's no line that set self.navigationItem.hidesBackButton to YES; also NSLog prints 0 as self.navigationItem.hidesBackButton's value in viewDidLoad. This occurs in both the simulator and real device. Any ideas?

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• iPhone app with UIWebView

  - by chaitanya

  Hi, I have a doubt in developing apps for iphone, Can I develop authentication page(with secure login id and pwd) through which I can load my webcontent. Does apple allow applications having login credentials or not? Can anyone please let me know this. Thanks in advance..

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• How do I get an UIImageView to tell me when its animation stops?

  - by Chris

  I have a UIImageView that is displaying a series of pictures as an animation. This part of the project works well. I want to display a label when the animation ends. Is there an event that the Imageview will trigger when it's animation ends?

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• AccessoryDisclosureIndicator and AccessoryCheckmark on the left side

  - by embedded

  Hi I'm adding support for right-to-left languages for the UITableView. now I need to move the AccessoryDisclosureIndicator and AccessoryCheckmark from the right corner to the left. I'm taking the UIImageView path and Now I'm looking for 2 png icons: one for the AccessoryDisclosureIndicator arrow to the left and the second for the AccessoryCheckmark. Does anyone know where I can get those 2 icons? Is it possible when the user clicks on some cell to switch to the other view to the left and not to the right? Thanks

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• Why I can't see the background image in the device, but appears on the simulator?

  - by Tattat

  Here is the viewDidLoad: [self.view setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"bg.png"]]]; It can show the simulator, but not on the device, why?? thz.

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• crash happens when NSMutableArray is returned?

  - by senthilmuthu

  Hi, I have coded like that(that function will be called again and again), but the returned object gives "BAD ACCESS", the NSLog prints correct string, but toReturn sometimes(i called again and again) gives crashes..any help to alter this code - (NSMutableArray *)getAll:(NSString *)type { NSLog(@"Type: %@", type); NSMutableArray *toReturn = [[NSMutableArray alloc] initWithCapacity:0] ; rs = [db executeQuery:Query1]; while ([rs next]) { [toReturn addObject:[rs stringForColumn:@"Name"]]; NSLog(@"name: %@", [rs stringForColumn:@"Name"]); } [rs close]; return toReturn; }

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• Changing tab indicators to a view in a tab widget?

  - by user246114

  Hi, I have a layout which requires a tab widget containing two tabs. Ideally I'd like to have each tab just be a completely flat colored rectangle, side by side. Almost exactly like the buttons you see at the top of this web page titled: "Questions" | "Tags" | "Users" | "Badges" | "Unanswered" but without the whitespace in between. I'd like to have the highlighted tab have a brighter background color. Is this possible using the tab widget? I know in 1.6+ there's a method to specify a view for the tabs themselves, but can I achieve this tight look, or should I just roll my own? Thanks

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• Iphone Dev: Using one big image (sprite) for all uitableview cells

  - by Peter Pajchl

  I have a table view with a list of categories and each category (understand table cell) has a different icon. I would like to use one big image (sprite) and render different part of the image (single icon) for each row. Any efficient ideas...

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• does != nil check for 0x0?

  - by 4thSpace

  I have a custom class and check that a property isn't 0x0 by doing: if(myinstance.someproperty != nil){ //do something } However, even if someproperty is 0x0, I still go into the conditional. someproperty is of another class type. Is there some other way to check this?

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• Updating UILabel and UIButton immediately

  - by paul simmons

  Hi, In a project, I change a UILabel's text with setText, a UIButton's color and after that do a time consuming calculation, followed by an animation. However, the text's and color's change is reflected after the calculation is executed (and before the animation begins) however I want to reflect the changes immediately before calculation (as you guess it is a waiting text) How can I achieve this?

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• Help moving multiple images at once with touches

  - by daveMac

  Here is my problem: I am trying to move a puzzle piece around the screen and then connect to the other piece if they are in close proximity. I have achieved this, though it is perhaps a little odd the way I did. My problem though is that once they have connected, I can't figure out how to move them as one image, instead of two separate entities. I would really appreciate any help or suggestions. Here is a sample of what I have been doing: (void)touchesMovedNSSet *)touches withEventUIEvent *)event{ UITouch *touch = [touches anyObject]; [self dispatchTouchEvent:[touch view] toPosition:[touch locationInView:self.view]]; } -(void)dispatchTouchEventUIView *)theView toPositionCGPoint)position{ if ((CGRectContainsPoint([picture frame], position))) { picture.center = position; } if (CGRectContainsPoint([picture2 frame], position)) { picture2.center = position; } }

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• switching views on a TabBar App

  - by confusedmelon

  Hi, I am having a hell of a time trying to do what should be something simple. I have created a Tab Bar Application. How do I change the view SomeView.xib ? All the examples I see are from View To View, Tab to Nav. Any suggestions ?

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• Customized annotation problem

  - by user128647

  I want my custom UIView (.Xib View) to appear when user tabs on pins (not apple's callOutBubble) and in that UIView there should be a button which fires an IBAction on touched down event. Therefore I have added an AddObserver method to MKAnnotationView. which responds to touch events over pin in MKMapView. I have also added 3 buttons over that XIB view, which have also assigned IBActions. But when I run my application, buttons in the customized annotation view are not responding to IBAction (Touch Down). Why does this happen, and how can I fix it? I need to call a method when those 3 buttons are tabbed.

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• How to let the UITable sorted by number?

  - by Tattat

  I loaded a plist from the UITable, but there is something wrong. my plist file is some data like that: 3 3uyyhuhu34 ..... 5 5uyyhuhu34 ..... 11 11uyyhuhu34 ..... I found that the list is sorted from 11, then 3, after that is 5. But I want to sorted from 3, 5 to 11. What can I do to change the behaviors? thx

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• creating iPhone draggable objects

  - by james p

  I need to figure out how in the world do I create object instances (an image) and place them on the screen and have it draggable. I know how to draw an image (png) onto the screen, but how do I make it draggable?

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• Fake location for the device (custom)

  - by AtomRiot

  I know there are a few apps out there to fake a devices location but specifically what i want to do is use a location grabbed from a url. What direction should I look for setting the location on the device. The scenario i have is a jailbroken Wi-Fi iPad tethered to a nexus one. The nexus one would host a background service that when a request is recieved, it would respond with gps data of its current location. The jailbroken ipad would have a background service that either updated the location on a time interval, or on a per request basis (depending on how i have to implement it) by submitting a request to the tethered nexus one service. That data would then be set on the ipad and an application requesting location would get the service data. The goal is to recreate the location faker app's functionality with the exception of the spoofed location comes from the nexus ones gps via the service but i have not yet found out how to set the location data for the device. I can ofcourse implement this in a per app basis but it would be awesome to have any app be able to use it.

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• Will there be any conflict with other applications when my application saves data in [NSUserDefaults

  - by bobo

  After reading this thread: http://stackoverflow.com/questions/2792932/nsuserdefaults-not-present-on-first-run-on-simulator I know it's quite easy to store some app data in the [NSUserDefaults standardUserDefaults]. But if other applications also happen to use the same key to store their data, is this possible that my app data gets overwritten? Many thanks to you all.

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• How to detect swiping left / right on the iPhone?

  - by Tattat

  Is there any easy way to detect these kinds of gestures for iPhone? I can use touchesBegan, touchesMoved, touchesEnded. But how can I implement the gestures? thz u.

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• formatting european characters from JSON results

  - by mlecho

  hi, i am building an application that imports JSON results and parses the objects to a table cell. Nothing fancy, but in my results, many of the terms/names are European with characters such as è or ú which come out as \u00E9 or \u00FA. I think these are ASCII ? or unicode? ( i can never keep em staight). Anyway, like all good NSSTring's, i figured there must be a method to fix this, but i am not finding it....any ideas? I am trying to avoid doing something like this: this posting. Thanks all.

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• Setting the map as hybrid has no effect?

  - by TheLearner

  Does anyone know why setting the map as hybrid has no effect. Setting it as standard and satellite works fine though? [mapView setMapType: MKMapTypeHybrid];

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• Howto get Autocomplete for the Propertys in Eclipse

  - by mobbek_hobbeb

  Is it possible to get Autocomplete or Something when i work with the eclipse form editor? I write a color in the strings.xml and then i want to select it by the propertys for the text color, but there is no autocomplete or something equal

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• sound not playing when i press the button and how to fix overlapping sounds

  - by alfredjunco

  the code is giving me an error"Unused variable'path'" and when i press a button there is no sound playing how do i fix this the aSound is in the h file - (void)playOnce:(NSString *)aSound; - (IBAction) beatButton50 { [self playOnce:@"racecars"]; } - (void)playOnce:(NSString *)aSound { NSString *path = [[NSBundle mainBundle] pathForResource:aSound ofType:@"caf"]; if([theAudio isPlaying]) { [theAudio stop]; } } - (void)playLooped:(NSString *)aSound { NSString *path = [[NSBundle mainBundle] pathForResource:aSound ofType:@"caf"]; if (!theAudio) { theAudio = [[AVAudioPlayer alloc] initWithContentsOfURL: [NSURL fileURLWithPath: path] error: NULL]; } [theAudio setDelegate: self]; // loop indefinitely [theAudio setNumberOfLoops: -1]; [theAudio setVolume: 1.0]; [theAudio play]; } - (void)stopAudio { [theAudio stop]; [theAudio setCurrentTime:0]; }

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• NSUserDefaults and show a picture

  - by Momeks

  Hi , iam using setting.bundle and i try to show a hidden picture with Switch toggle , here is my code but i miss something : NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; [//Some code show the hidden pic]; myPic.hidden = NO; my key is .e.g = wood_back should i use ObjectForKey ?

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