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  • UITabBarController's 'More' navigation controller disappears under UINavigationController

    - by lennox_19
    I am using a UITabBarController as well as a UINavigationController on my app. In my UITabBarController I am using more than 5 items so I automatically get the 'More' item. I've managed to add a saving procedure so the order of those items will be kept in case somebody changes the order etc. With 'More' active I get the More navigation controller with the 'Edit' item positioned under my UINavigationController. Both navigation controller are visible. When I click on 'Edit though the More navigation controller disappears and seem to be hiding under my UINavigationController and therefore I can't see/use the 'Done' function to save my new order What did I miss? Cheers

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  • Applying the same function to each object of an array in objective-c

    - by sagar
    Hey ! every one. I am having some query regarding Objective-c. Let's have a look to following code. NSArray *ar=[scrPDFPage subviews]; int i; for (i=0; i<[ar count]; i++) { [(UIView*)[ar objectAtIndex:i] removeFromSuperview]; } now my queries are as follows, Instead of rotating a loop, isn't there an option like, [ar applyFunctionToObjects:@selector(myFunction:)] Isn't there any option like [myView removeAllSubViews]; ( According to my knowledge, there is no option like remove all sub views, but in case you might know. ) Thanks in advance for sharing your knowledge. Sagar.

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  • NSString sizeWithFont: returning inconsistent results? known bug?

    - by Olof Hedman
    I'm trying to create a simple custom UIView wich contain a string drawn with a single font, but where the first character is slightly larger. I thought this would be easily implemented with two UILabel:s placed next to eachother. I use NSString sizeWithFont to measure my string to be able to lay it out correctly. But I noticed that the font baseline in the returned rectangle varies with +/- 1 pixel depending on the font size I set. Here is my code: NSString* ctxt = [text substringToIndex:1]; NSString* ttxt = [text substringFromIndex:1]; CGSize sz = [ctxt sizeWithFont: cfont ]; clbl = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, sz.width, sz.height)]; clbl.text = ctxt; clbl.font = cfont; clbl.backgroundColor = [UIColor clearColor]; [contentView addSubview:clbl]; CGSize sz2 = [ttxt sizeWithFont: tfont]; tlbl = [[UILabel alloc] initWithFrame:CGRectMake(sz.width, (sz.height - sz2.height), sz2.width, sz2.height)]; tlbl.text = ttxt; tlbl.font = tfont; tlbl.backgroundColor = [UIColor clearColor]; [contentView addSubview:tlbl]; If I use 12.0 and 14.0 as sizes, it works fine. But if I instead use 13.0 and 15.0, then the first character is 1 pixel too high. Is this a known problem? Any suggestions how to work around it? Creating a UIWebView with a CSS and HTML page seems way overkill for this. and more work to handle dynamic strings. Is that what I'm expected to do?

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  • Need to Release UIWebView Delegate?

    - by Chris
    I have a UIWebView named wView. I want to use webViewDidFinishLoad: in my class, so I am setting the class as the delegate for wView by using this line: wView.delegate = self; Everything loads properly, but when I close the UIWebView, the App crashes. If I comment out the wView.delegate = self, it works and does not crash, but then I can't use webViewDidFinishLoad: - any ideas? Do I need to release something?

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  • Cocos2D: Problem Rotating a CCMenu

    - by srikanth rongali
    If I try to do actions over menuItems but the actions are not running as expected. I think code below should make the menuItem rotate by 90 degrees but when I run it, the menuItem translates from its coordinates to another coordinate then returns to its original coordinate. The complete translation takes 3 seconds. What I need is for the menuItem to rotate by 90 degrees in place within a 3 seconds duration. Please explain where I have done wrong? CCMenuItemImage *targetE;//Globally declared CCMenu *menu;//Globally declared -(id)init { if( (self = [super init]) ) { isTouchEnabled = YES; CGSize windowSize = [[CCDirector sharedDirector] winSize]; targetE = [CCMenuItemImage itemFromNormalImage:@"grossinis_sister1.png" selectedImage:@"grossinis_sister1.png" target:self selector:@selector(touch:)]; menu = [CCMenu menuWithItems:targetE,nil]; id action4 = [CCRotateBy actionWithDuration:3.0 angle:90]; [menu runAction: [CCSequence actions: action4, nil]]; menu.position = ccp(windowSize.width/2 + 200, windowSize.height/2); [self addChild: menu z:10]; } return self; } @end Thank You.

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  • UIScrollView works as expected but scrollRectToVisible: does nothing

    - by mahboudz
    HI. I have used UIScrollView before, and am using it now, and never had a problem. I'm now adding it to an old app, and while it works as expected (I can look at the contents, scroll around with my finger, all the bounds and sizes are setup right so there is no empty space in the content, etc.), I just can't get scrollToRectVisible to work. I have even simplified the call so that it merely moves to the 0,0 position: [scrollView scrollRectToVisible:CGRectMake(0, 0, 10, 10) animated:YES]; or move it to 0,200: [scrollView scrollRectToVisible:CGRectMake(0, 200, 10, 10) animated:YES]; I even made a quick app to test this and I can get scrollRectToVisible to work there as I expect. But in my old app, I can't seem to make it do anything. I can make the scrollView scroll with setContentOffset:, but that's not what I want. This scrollView and its contents are defined in the nib by IB and used with an IBOutlet. The only code I am using in my app to handle the scrollView is [scrollView setContentSize:CGSizeMake(scrollView.contentSize.width, imageView.frame.size.height)]; (I'm only interested in vertical scrolling not horizontal). Has anyone run into a problem like this? I have compared the scrollView attributes in both apps and they are identical. ADDENDUM: My scrollViews frame is: 0.000000 0.000000 480.000000 179.000000 My scrollViews contentSize is: 0.000000 324.000000 It still acts like the rect I want to scroll to is already visible and no scrolling is needed. Not sure if that is what is happening. This is just the darnest thing. Seems like such an easy thing to resolve... ADDENDUM #2: This is how I am making do without scrollRectToVisible: CGPoint point = myRect.origin; if (![clefScrollView pointInside:point withEvent:nil]) { point.x = 0; if (point.y > clefScrollView.contentSize.height - clefScrollView.bounds.size.height) point.y = clefScrollView.contentSize.height - clefScrollView.bounds.size.height; [clefScrollView setContentOffset:point animated: YES]; } Everything else about this scrollView works as expected, but scrollRectToVisible. WHY?!? Any wild guesses?

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  • NSUserDefaults not present on first run on simulator

    - by Ben Collins
    I've got some settings saved in my Settings.bundle, and I try to use them in application:didFinishLaunchingWithOptions, but on a first run on the simulator accessing objects by key always returns nil (or 0 in the case of ints). Once I go to the settings screen and then exit, they work fine for every run thereafter. What's going on? Isn't the point of using default values in the Settings.bundle to be able to use them without requiring the user to enter them first?

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  • UITableView titleForHeaderInSection prints headers to console twice then crashes

    - by joec
    In the method below titleForHeaderInSection, for some reason the NSLog prints out the headers twice and then the app crashes in objc_msgSend. I can't understand why this would cause the app to crash? It would seem from research that crashes in objc_msgSend are caused by sending messages to already freed objects, but is that the case here? My sectionNames array is populated in viewDidLoad. - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section { NSString *title = nil; title=[sectionNames objectAtIndex:section]; NSLog(title); return title; } Thanks

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  • add animation to layer's path in cocos2d

    - by greg rock
    so i'm on cocos2d but before I was on a normal ios app and I had this code : -(void)viewDidLoad{ rootLayer = [[CALayer alloc] init]; [imageView.layer addSublayer:rootLayer]; roundPath = CGPathCreateMutable(); CGPathMoveToPoint(roundPath, nil, center.x , center.y - 35); CGPathAddArcToPoint(roundPath, nil, center.x + 35, center.y - 35, center.x + 35, center.y + 35, 35); CGPathAddArcToPoint(roundPath, nil, center.x + 35, center.y + 35, center.x - 35, center.y + 35, 35); CGPathAddArcToPoint(roundPath, nil, center.x - 35, center.y + 35, center.x - 35, center.y, 35); CGPathAddArcToPoint(roundPath, nil, center.x - 35, center.y - 35, center.x, center.y - 35, 35); CGPathCloseSubpath(roundPath); //Box Path boxPath = CGPathCreateMutable(); CGPathMoveToPoint(boxPath, nil, center.x , center.y - 35); CGPathAddArcToPoint(boxPath, nil, center.x + 35, center.y - 35, center.x + 35, center.y + 35, 4.7); CGPathAddArcToPoint(boxPath, nil, center.x + 35, center.y + 35, center.x - 35, center.y + 35, 4.7); CGPathAddArcToPoint(boxPath, nil, center.x - 35, center.y + 35, center.x - 35, center.y, 4.7); CGPathAddArcToPoint(boxPath, nil, center.x - 35, center.y - 35, center.x, center.y - 35, 4.7); CGPathCloseSubpath(boxPath); shapeLayer = [CAShapeLayer layer]; shapeLayer.path = boxPath; [rootLayer addSublayer:shapeLayer]; } -(void)startAnimation { CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"path"]; animation.duration = 2.0; animation.repeatCount = HUGE_VALF; animation.autoreverses = YES; animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]; animation.fromValue = (id)boxPath; animation.toValue = (id)roundPath; [shapeLayer addAnimation:animation forKey:@"animatePath"]; } But I didn't found a way to do the animation fromboxpath toroundpath on cocos2d, I don't know what CCAction use . Can anybody help me ? sorry for my english I'm french :/

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  • Why doesn't genstrings convert NSLocalizedStringFromTable entries to table.strings?

    - by juan tendero
    In my source code I have some lines like NSLocalizedStringFromTable(@"Info", @"en", @"Title of this view"). When I subsequently call genstrings -o en.lproj ./Classes/*.m I would not get the expected file en.strings but Localized.strings, although I've read in the genstrings-manpage that it would generate a table.strings file from NSLocalizedStringFromTable(a, table, c) function. Am I wrong? How would I create a table.strings file then?

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  • UIScrollView strange zoom behavior when content is a UIView subclass

    - by sigsegv
    Hi, I'm experiencing the following: I created a UIView subclass with a CATiledLayer as backing layer by overriding the layerClass method. The layer properties (delegate, tileSize, etc) are set in the initWithFrame: method of the subclass. +(Class)layerClass { return [CATiledLayer class]; } -(id)initWithFrame:(CGRect)frame { if(self = [super initWithFrame:frame]) { renderer = [[MFPDFRenderer alloc]init]; tiledLayer = (CATiledLayer *)[self layer]; [tiledLayer setFrame:frame]; [tiledLayer setLevelsOfDetail:2]; [tiledLayer setLevelsOfDetailBias:3]; [tiledLayer setTileSize:CGSizeMake(512, 512)]; [tiledLayer setDelegate:renderer]; } return self; } Then I add an instance of said class as the content of an UIScrollView and set UIScrollView properties and implement the required delegate's methods. Everything works fine but when zooming the scroll view keep repositioning itself on its center. It's hardly noticeable when zooming in the center of the content, but unbearable otherwise. The same scroll view works fine when I use as (zoomable) content any other view such as an UIImageView or even a normal UIView with a CATiledLayer with the same properties and delegate of the subclass implementation as sublayer. When I check layer bounds and frame in the drawLayer:inContext: method of the delegate I get the following result as the zoom increase UIView with CATiledLayer as sublayer: 2010-04-03 21:05:33.499 Renderer[89293:4903] Layer: (0.000, 0.000) 320.000 x 460.000 2010-04-03 21:05:33.500 Renderer[89293:4903] Bounds: (0.000, 0.000) 320.000 x 460.000 2010-04-03 21:05:33.529 Renderer[89293:4903] Layer: (0.000, 0.000) 320.000 x 460.000 2010-04-03 21:05:33.534 Renderer[89293:4903] Bounds: (0.000, 0.000) 320.000 x 460.000 Custom subclass: 2010-04-03 21:04:15.969 Renderer[88957:4903] Layer: (0.000, 0.000) 657.910 x 945.746 2010-04-03 21:04:15.970 Renderer[88957:4903] Bounds: (0.000, 0.000) 320.000 x 460.000 2010-04-03 21:04:17.428 Renderer[88957:4903] Layer: (-0.000, 0.000) 766.964 x 1102.510 2010-04-03 21:04:17.429 Renderer[88957:4903] Bounds: (0.000, 0.000) 320.000 x 460.000 [...] 2010-04-03 21:19:10.388 Renderer[92573:4903] Layer: (-0.000, 0.000) 905.680 x 1301.916 2010-04-03 21:19:10.388 Renderer[92573:4903] Bounds: (0.000, 0.000) 320.000 x 460.000 I suppose that's the culprit or at least another symptom. I can add that I get the same erratic behavior if my subclass is built over a standard CALayer with the same renderer. Any suggestion will be appreciated!

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  • popViewControllerAnimated from back buttton

    - by Goods
    How can I popview from back button pressed, i passed the below code from previous view controller. Thanks self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStyleBordered target:nil action:nil];

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  • Is there a more useful explanation for UITableViewStylePlain?

    - by mystify
    From the docs: In the plain style, section headers and footers float above the content if the part of a complete section is visible. A table view can have an index that appears as a bar on the right hand side of the table (for example, "a" through "z"). You can touch a particular label to jump to the target section. I find that very hard to grasp. First, this one: if the part of a complete section is visible What do they mean by this? This is paradox. Which one is it? A) Table must be exactly the height of that section. If I have 5 Rows, and each row is 50px high, I must make it 5*50 high. The full section must be visible on the screen. Otherwise, if I have 100 rows but my table view is only 400 high, this will not apply. Nothing will float above my content. Sounds wrong. B) It doesn't matter how high my table view actually is. Header and Footer is floating above the content and I can scroll the section. Makes more sense. But is completely against this nonsense making sentence: 'if the part of a complete section is visible' Can anyone explain it better than they did?

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  • App store name and info.plist

    - by user346194
    Hi guys, I've just completed my first app and having tested I'm ready for submission. However, despite numerous web searches and reading, I'm struggling to finalise the method required to enable me to have a different name on the app store to the name that appears under the app on the device home screen. In the plist.info file there is reference to bundle display name, executable name, bundle name, bundle identifier, product name etc. So, for example, say I would like the app store name to display as: HELLO WORLD and I would like the name below the icon on the device home screen to display as: HELLO How should I enter the data in the plist.info file to achieve the above? Many thanks in advance for your help. Gav.

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  • AVAudioRecorder Won't Record On Device

    - by Dyldo42
    This is my method: -(void) playOrRecord:(UIButton *)sender { if (playBool == YES) { NSError *error = nil; NSString *filePath = [[NSBundle mainBundle] pathForResource:[NSString stringWithFormat: @"%d", [sender tag]] ofType:@"caf"]; NSURL *fileUrl = [NSURL fileURLWithPath:filePath]; AVAudioPlayer *player = [[AVAudioPlayer alloc] initWithContentsOfURL:fileUrl error:&error]; [player setNumberOfLoops:0]; [player play]; } else if (playBool == NO) { if ([recorder isRecording]) { [recorder stop]; [nowRecording setImage:[UIImage imageNamed:@"NormalNormal.png"] forState:UIControlStateNormal]; [nowRecording setImage:[UIImage imageNamed:@"NormalSelected.png"] forState:UIControlStateSelected]; } if (nowRecording == sender) { nowRecording = nil; return; } nowRecording = sender; NSError *error = nil; NSString *filePath = [[NSBundle mainBundle] pathForResource:[NSString stringWithFormat: @"%d", [sender tag]] ofType:@"caf"]; NSURL *fileUrl = [NSURL fileURLWithPath:filePath]; [sender setImage:[UIImage imageNamed:@"RecordingNormal.png"] forState:UIControlStateNormal]; [sender setImage:[UIImage imageNamed:@"RecordingSelected.png"] forState:UIControlStateSelected]; recorder = [[AVAudioRecorder alloc] initWithURL:fileUrl settings:recordSettings error:&error]; [recorder record]; } } Most of it is self explanatory; playBool is a BOOL that is YES when it is in play mode. Everything works in the simulator however, when I run it on a device, [recorder record] returns NO. Does anyone have a clue as to why this is happening?

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  • Avaudioplayer problem regarding songs

    - by Arun Sharma
    I am using avaudioplayer for playing mp3 songs. The problem is in being able to catch the instance of the player to control it i.e. Stop it, Play it etc. The code by default creates multiple instances of the same player and overlaps the songs. I am being unable to reference the player specifically. Do you have an idea as to how we can do so? Thanks Arun Sharma

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  • Custom background for UINavigationBar in landcape mode

    - by lostInTransit
    Hi I am adding a custom background for my UINavigationBar. It works fine as long as the phone is in portrait mode. As soon as I switch to landscape mode, half the bar appears blue (the default navbar color) and half of it has my image How can I stretch the image for landscape mode and make it small again for portrait mode? Thanks Solution Incase anyone is looking for an answer to how to add an image to navigation bar - here goes UIImageView *imgView = [[UIImageView alloc] initWithFrame:CGRectMake(0.0, 0.0, 480.0, 44.0)]; [imgView setImage:[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"navbar_landscape" ofType:@"png"]]]; [navigationController.navigationBar addSubview:imgView]; [imgView release];

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  • Distance between Long Lat coord using SQLITE

    - by munchine
    I've got an sqlite db with long and lat of shops and I want to find out the closest 5 shops. So the following code works fine. if(sqlite3_prepare_v2(db, sqlStatement, -1, &compiledStatement, NULL) == SQLITE_OK) { while (sqlite3_step(compiledStatement) == SQLITE_ROW) { NSString *branchStr = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 0)]; NSNumber *fLat = [NSNumber numberWithFloat:(float)sqlite3_column_double(compiledStatement, 1)]; NSNumber *fLong = [NSNumber numberWithFloat:(float)sqlite3_column_double(compiledStatement, 2)]; NSLog(@"Address %@, Lat = %@, Long = %@", branchStr, fLat, fLong); CLLocation *location1 = [[CLLocation alloc] initWithLatitude:currentLocation.coordinate.latitude longitude:currentLocation.coordinate.longitude]; CLLocation *location2 = [[CLLocation alloc] initWithLatitude:[fLat floatValue] longitude:[fLong floatValue]]; NSLog(@"Distance i meters: %f", [location1 getDistanceFrom:location2]); [location1 release]; [location2 release]; } } I know the distance from where I am to each shop. My question is. Is it better to put the distance back into the sqlite row, I have the row when I step thru the database. How do I do that? Do I use the UPDATE statement? Does someone have a piece of code to help me. I can read the sqlite into an array and then sort the array. Do you recommend this over the above approach? Is this more efficient? Finally, if someone has a better way to get the closest 5 shops, love to hear it.

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  • Numeric keyboard dismiss???

    - by shishir.bobby
    HI all, I am having a 2 textFeild and 1 textview. out of 2 textfeild,one textfield requires number to be filled in there. so for that i hv provided numeric keyboard. i m not able to dismiss numeric keyboard,since i cant c any option to hit the numeric keyboard dismiss. is it possible to dismiss numeric keyboard ?? if yes than can anyone guide me through. regards shishir

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  • Converting NSMutableData to NSString Problem

    - by Sheehan Alam
    initWithData does not convert my data object into a string properly. When I check the length of the data object, it has a value. NSMutableData* receivedData =[[NSMutableData data] retain]; NSString* json_string = [[NSString alloc] initWithData:receivedData encoding:NSUTF8StringEncoding]; Am I doing something wrong creating the string?

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  • The accossoryView of a UITableViewCell disappears after the visible view is changed

    - by Luca
    Hi! I'm experiencing this strange situation. I have a UITableView where, when the user selects a cell, a long (network) process begins. So, I performed this in a background thread and I placed (in the didSelectRowAtIndexPath) a UIActivityIndicatorView as the accessory view. This is what I wrote: UITableViewCell* cell = [self.tableView cellForRowAtIndexPath:indexPath]; UIActivityIndicatorView* activityView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite]; cell.accessoryView = activityView; [activityView startAnimating]; [activityView release]; everything seems to work correctly, except that, if during a loading process (when the indicator is animated), I switch the view using a UITabBar, when I go back to the UITableView, the UIActivityIndicatorView that should still be there has disappeared. Any idea of what I did wrong? Thanks!

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