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  • UIImageView rotation (NOT the image, but the view)

    - by Kuko
    Hi. How do I rotate the ImageView ... i'm trying to use landscape mode, and have a problem with accelerometer moving the image ... Because when I work in portrait mode the x of accelerometer is the same as the x of the image ... But when I work landscape, the x of accelerometer is the y of the image, because the ImageView autorotates with the parent View. When I rotate the image with CGAffineTransformMakeRotation(M_PI/2), it rotates only the image in it's ImageView... and the x,y sides stays untouched ... Is there any way to make own class which will extend UIImageView where I will swap the x,y sides of a UIImageView ? Or is there some way to rotate the UIImageView, and not only the image in it?

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  • sqlite3 update text in uitextview

    - by summer
    i had the sqlite statement ready for update..but i am confuse about grabbing text from uitextview and updating it..and i waned to update it using a uibutton..how do i carry on after creating the sql statement???kinda lost..any new solution is appreciate.. - (void) saveAllData { if(isDirty) { if(updateStmt == nil) { const char *sql = "update Snap Set snapTitle = ?, snapDesc = ?, Where snapID = ?"; if(sqlite3_prepare_v2(database, sql, -1, &updateStmt, NULL) != SQLITE_OK) NSAssert1(0, @"Error while creating update statement. '%s'", sqlite3_errmsg(database)); } sqlite3_bind_text(updateStmt, 1, [snapTitle UTF8String], -1, SQLITE_TRANSIENT); sqlite3_bind_text(updateStmt, 2, [snapDescription UTF8String], -2, SQLITE_TRANSIENT); sqlite3_bind_int(updateStmt, 3, snapID); if(SQLITE_DONE != sqlite3_step(updateStmt)) NSAssert1(0, @"Error while updating. '%s'", sqlite3_errmsg(database)); sqlite3_reset(updateStmt); isDirty = NO; } //Reclaim all memory here. [snapTitle release]; snapTitle = nil; [snapDescription release]; snapDescription = nil; //isDetailViewHydrated = NO; }

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  • Xcode: iPhone app codesign error

    - by Gabe Hollombe
    When building a new iPhone app in Xcode, I'm getting this error: codesign error: code signing identity 'iphone developer' does not match any code-signing certificate in your keychain. once added to the keychain, touch a file or clean the project to continue. What's the fix?

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  • How to identify WHICH NSURLConnection did finish loading when there are multiple ones?

    - by RexOnRoids
    Multiple NSURLConnections being started (in a single UIViewController) to gather different kinds of data. When they return (-connectionDidFinishLoading) I wanna do stuff with the data, depending on the type of data that has arrived. But one prob, HOW DO I KNOW WHICH NSURLConnection returned? I need to know so I can take action specific to the type of data that came. (Eg. display a twitter update if it was the twitter xml data)(Eg. display an image if it was a photo) How do people usually solve this?

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  • Differentiating Between UITouch Objects On The iPhone

    - by Jasarien
    Hey guys, I'm trying to differentiate between two (or more) UITouch objects on the iPhone. Specifically, I'd like to know the order in which the touches occurred. For instance, in my -touchesBegan:withEvent: method I get an NSSet of UITouch objects. Now I can find out how many touches there are, but, which object represents which finger? I notice the timestamp property on UITouch - is this what I'm looking for? I see how that would be useful to obtaining the last or first touch - providing the touches don't mutate... Therein lies my problem. I can use the timestamp to single out the latest touch, but then the touch that occurred first moves, and IT becomes the latest touch... At the end of this exercise, I'd like to be able to implement the "pinch" gesture to zoom in or out, etc. Any help would be greatly appreciated, thanks.

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  • inserting values from array to table view

    - by shishir.bobby
    hi all, i hv an array parsed from xml which looks like this de <0Merkel <1AppleIphone <2Sag ich nicht <3youporn.com <4ICQ Service <5Sozialamt <6Liebesengel <7Hartz 4 i am able to set this list into table view's cell, but the problem is i am not able to break each entry for each cell..evrything is coming up in a ssingle row, how can i get each entry in each row? regards shishir

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  • Handling multiple UISwitch controls in a table view without using tag property

    - by Thaurin
    I have a table view controller with multiple UISwitch controls in them. I set the delegate to the table view controller with the same action for all switches. I need to be able to determine what switch was changed, so I create an array of strings that contains the name of each switch. The indexes in the array will be put in the tag property of each UISwitch. However, I'm ready using the tag property for something else, namely to find the right control in the cell in cellForRowAtIndexPath with viewWithTag! (There are several things I need to set within each cell.) So, am I thinking along the right lines here? I feel I'm rather limited in how I find out exactly which UISwitch changed its value, so I can do something useful with it.

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  • View controllers inside tab bar controller not auto-resizing on rotation

    - by Padawan
    (Correction: the view controllers are not auto-resizing instead of not auto-rotating.) In an iPad app, I have five regular view controllers (not navigation controllers or anything like that) inside a tab bar controller. The tab bar controller is just a plain UITabBarController declared in the app delegate. All the view controllers return YES in the shouldAutorotateToInterfaceOrientation method. On both the simulator and device, on rotation, the tab bar and the current view controller rotate but the currently selected view controller (call it A) does not resize properly. It keeps its portrait width and height (but it is rotated). If I switch to another view controller B and then back to A (without rotating the device again), A appears correctly resized. This happens with any of the five view controllers Why doesn't the currently selected view controller resize immediately on rotation and how do I fix it? Thanks.

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  • UIScrollView on iPad isnt working

    - by Magician Software
    Hi There, can anyone tell me what I am doing wrong. I am trying to load a UIScrollView in a UIView. I am using IB to load the items and what not. the come I am using in the ViewController isnt working. :( I have it under the ViewDidLoad - (void)viewDidLoad { [scrollView setScrollEnabled:YES]; [scrollView setContentSize:CGSizeMake(768, 1300)]; } Whats wrong with it. It builds fine. While I am asking, how do you set the scroll view to strech when the iPad is rotated? Thanks for your help

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  • Multiple NSOperationQueues?

    - by Infinity
    Hello! I would like to use NSOperations in my application to resolve threading problems. I have read some tutorials and now I know what I have to do, but I have a problem. There is a must to have the same NSOperationQueue in each class. What if I use a new NSOperationQueue in each class. There will be concurrency problems?

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  • Stop Progressbar manual scrolling in Android

    - by Rony
    Hi experts, I have already posted my query here, but unfortunately, not getting the required support for this simple query. http://www.anddev.org/prevent_manual_moving_of_seekbar_widget-t13048.html I am using progressbar widget in my application to show the download progress. In the current state, I am able to manually move the slider back and forth while download is progressing. How can I prevent the manual moving of progressbar, instead it works only based on progressbar.setProgress(progressbar.getProgress() + 1024); -- currently this works perfect, but I need to prevent the manual moving of progressbar during download. Any help in this regard is appreciated. Regards, Rony

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  • How to get selected item of a singlechoice Alert Dialog?

    - by Pentium10
    I have this code to show a dialog with singlechoice(radio) options. AlertDialog ad = new AlertDialog.Builder(this) .setCancelable(false) .setIcon(R.drawable.alert_dialog_icon) .setTitle(R.string.choose_one) .setSingleChoiceItems(seq, pos,null) .setPositiveButton( R.string.ok, new DialogInterface.OnClickListener() { public void onClick( DialogInterface dialog, int whichButton) { // dialog dismissed } }).create(); How do I get the choice that has been selected?

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  • Casting and getting values from date picker and time picker in android

    - by Rahul Varma
    Hi , I have a date picker and a time picker in my app. Can anyone tell me how to get the values of the date and time that are selected??? What i mean to say is, for EditText we can declare as final EditText Name = (EditText) this.findViewById(R.id.nametext); and we can cast the data of it by using Name.getText().toString(). So similarly how can we get the values of date picker and time picker to a string???

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  • Using kAudioSessionProperty_OtherMixableAudioShouldDuck on iPhone

    - by Cliff
    Hello, I'm trying to get consistant behavior out of the kAudioSessionProperty_OtherMixableAudioShouldDuck property on the iPhone to allow iPod music blending and I'm having trouble. At the start of my app I set an Ambient category like so: -(void) initialize { [[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryAmbient error: nil]; } Later on when I attempt to play audio I set the duck property using the following method: //this will crossfade the audio with the ipod music - (void) toggleCrossfadeOn:(UInt32)onOff { //crossfade the ipod music AudioSessionSetProperty(kAudioSessionProperty_OtherMixableAudioShouldDuck,sizeof(onOff),&onOff); AudioSessionSetActive(onOff); } I call this passing a numeric "1" just before playing audio like so: [self toggleCrossfadeOn:1]; [player play]; I then call the crossfade method again passing a zero when my app's audio completes using a playback is stopping callback like so: -(void) playbackIsStoppingForPlayer:(MQAudioPlayer*)audioPlayer { NSLog(@"Releasing player"); [audioPlayer release]; [self toggleCrossfadeOn:0]; } In my production app this exact code works as expected, causing the ipod to fade out just before playing my app's audio then fade back in when the audio finishes playing. In a new project I recently started, I get different behavior. The iPod audio fades down and never fades back in. In my production app I use the AVAudioPlayer where in my new app I've written a custom audio player that uses audio queues. Could somebody help me understand the differences and how to properly use this API?

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  • UISearchDisplayController not working when created in code??

    - by Nick Bedford
    I'm working on a tab bar application and one of the tabs has a UISearchDisplayController hooked up to a UISearchBar. It's all connected up in the NIB and is working. When I tap the search bar, the Scope and Cancel buttons fly in etc, and the search delegate updates the results table correctly. However, I'm trying to implement the same code in the viewDidLoad message instead of the NIB, however when I delete the search display controller from the NIB and uncomment my code to create the same controller in the function, it doesn't work. It's as if there's some fundamental connection not being made so that all my search delegate functionality isn't being called. Here's my working NIB version of the Search Display Controller. It's hooked up to the search bar, the UINavigationController subclass (MASearchController) and the root view of that is hooked up as the searchContentsController. Now this is what you would expect to do in code to create the same, right? What I'm doing is leaving the UISearchBar in the NIB to eliminate one piece of the puzzle at a time in code. // [MASearchController viewDidLoad] UISearchDisplayController *searchController = [[[UISearchDisplayController alloc] initWithSearchBar:searchBar contentsController:[[self viewControllers] objectAtIndex:0]] autorelease]; [searchController setDelegate:self]; [searchController setSearchResultsDelegate:self]; [searchController setSearchResultsDataSource:self]; I've checked all objects at run time and they all check out. Essentially I've deleted the search display controller from the NIB and then put in the code to create it in the viewDidLoad message. Why would this not work? The search keyboard comes up but none of my search and button animation functionality work???

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  • NSXMLParser Memory Allocation Efficiency for the iPhone

    - by Staros
    Hello, I've recently been playing with code for an iPhone app to parse XML. Sticking to Cocoa, I decided to go with the NSXMLParser class. The app will be responsible for parsing 10,000+ "computers", all which contain 6 other strings of information. For my test, I've verified that the XML is around 900k-1MB in size. My data model is to keep each computer in an NSDictionary hashed by a unique identifier. Each computer is also represented by a NSDictionary with the information. So at the end of the day, I end up with a NSDictionary containing 10k other NSDictionaries. The problem I'm running into isn't about leaking memory or efficient data structure storage. When my parser is done, the total amount of allocated objects only does go up by about 1MB. The problem is that while the NSXMLParser is running, my object allocation is jumping up as much as 13MB. I could understand 2 (one for the object I'm creating and one for the raw NSData) plus a little room to work, but 13 seems a bit high. I can't imaging that NSXMLParser is that inefficient. Thoughts? Code... The code to start parsing... NSXMLParser *parser = [[NSXMLParser alloc] initWithData: data]; [parser setDelegate:dictParser]; [parser parse]; output = [[dictParser returnDictionary] retain]; [parser release]; [dictParser release]; And the parser's delegate code... -(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict { if(mutableString) { [mutableString release]; mutableString = nil; } mutableString = [[NSMutableString alloc] init]; } -(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string { if(self.mutableString) { [self.mutableString appendString:string]; } } -(void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName { if([elementName isEqualToString:@"size"]){ //The initial key, tells me how many computers returnDictionary = [[NSMutableDictionary alloc] initWithCapacity:[mutableString intValue]]; } if([elementName isEqualToString:hashBy]){ //The unique identifier if(mutableDictionary){ [mutableDictionary release]; mutableDictionary = nil; } mutableDictionary = [[NSMutableDictionary alloc] initWithCapacity:6]; [returnDictionary setObject:[NSDictionary dictionaryWithDictionary:mutableDictionary] forKey:[NSMutableString stringWithString:mutableString]]; } if([fields containsObject:elementName]){ //Any of the elements from a single computer that I am looking for [mutableDictionary setObject:mutableString forKey:elementName]; } } Everything initialized and released correctly. Again, I'm not getting errors or leaking. Just inefficient. Thanks for any thoughts!

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  • How to conform to UITabBarControllerDelegate

    - by 4thSpace
    I have a tabbar based application and do the following to get a reference to the application delegate: MyAppDelegate *appDelegate = [[UIApplication sharedApplication] delegate]; Which then gives this warning: warning: type 'id <UIApplicationDelegate>' does not conform to the 'UITabBarControllerDelegate' My application delegate header looks like this: #import <UIKit/UIKit.h> @interface MyAppDelegate : NSObject <UIApplicationDelegate, UITabBarControllerDelegate> { UIWindow *window; UITabBarController *tabBarController; } @property (nonatomic, retain) IBOutlet UIWindow *window; @property (nonatomic, retain) IBOutlet UITabBarController *tabBarController; @end The only methods in the .m file are applicationDidFinishLaunching and dealloc. What else do I need to conform to the protocol?

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  • iPhone Table View Cell Image: Working on simulator, not showing on real device

    - by Graeme
    Hi, I have a UITable View that displays an image in the left hand side of the table cell, and it works fine in the simulator. Only problem is, once I ran it on my device no images appear. At first 3 did, but then I "cleaned headers" and now none appear. Have checked that images are added to resource folder for build (which they are) and that capitals etc. match (which they do). Any ideas? Thanks. Code to display images: cell.imageView.layer.masksToBounds = YES; cell.imageView.layer.cornerRadius = 5.0; UIImage *image = [UIImage imageNamed:[[dog types] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]];; if ( image ) { cell.imageView.image = [image imageScaledToSize:CGSizeMake(50, 50)]; }

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  • Capture Touch Event on UITableViewCell and after enter didSelectRowAdTindePath method

    - by Luca
    Hi I want to personalize my UITableView changing background when user tap on a specific cell. I've a dedicated ViewController for each cell and if I implement touchesBegan method in this viewController i can change my cell background without any problem. The problem is that the method "didSelectRowAtIndexPath" of the UITableView is no longer called. How can I call it manually? I am in another viewController and I have no access to that method. or how can propagate to the touch tableView? Thanks a lot

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  • Navigation bar's buttons tint color sometimes not set

    - by Felipe
    Refer to the following, short video: http://screencast.com/t/cmnsqVTh The problem is with the color of a navigation bar's back button. The first time I load the app, the navigation bar + its buttons have the default color. I then push a view controller on the stack, and when the new view loads (in the viewDidLoad method), it sets the navigation bar's tint color to pink. The nav bar's buttons are also pink as expected. I then press the back button, and the view is popped from the stack. On the root view controller's viewWillAppear method I set the tint color back to nil so that it's the default color again. The navigation bar looks as expected. However if I push the view controller on the stack yet again, the navigation bar's tint color is pink, but the back button's color is the default light blue. Hope that was understandable. So what's the cause of the problem?

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