Search Results

Search found 19130 results on 766 pages for 'tariq iphone programmer'.

Page 541/766 | < Previous Page | 537 538 539 540 541 542 543 544 545 546 547 548  | Next Page >

  • How to set background color of tableView

    - by Praveen
    Hi Folks, I have tried all the way but could not succeed to set backgroundColor of TableView. setting tableView.backgroundColor and/or cell.backgroundColor to clearColor didn't work when the parent view controller was UIViewContoller. My nib file structure is FileOwner View UITableView (Note: i set the TableView to groupedTable section) First attempt, I created the UIView in the code viewDidLoad UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 160, 300)] autorelease; [view setBackgroundColor:UIColor blueColor]; // color it just to see if it is created at the right place [self.tableView sendSubViewToBack:view]; It works but it hides the content of cell. I am able to see the content of header but not cell content. (But when i change the co-ordinate of view(0,150,160,300) then i am able to see the cell's content but then it loose the backgroundColor of tableview. Second attempt, I created the imageView View ImageView UITableView and set the self.tableView.backgroundColor = [UIColor clearColor]; but did not work. I googled but did not the peaceful answer.

    Read the article

  • ViewController Navigating

    - by Kobe.o4
    I have 4 ViewControllers, startViewController as the initial View Controller. This contains my intro. After its finish, it will [self presentViewController:vc animated:YES completion:NULL]; into my menuViewController. startViewController ------> menuViewController ------> C1ViewController \ \ ------> ImportantViewController In my menuViewController are buttons for the two ViewController like the above illustration. Also I presented them in the View with this: [self presentViewController:vc animated:YES completion:NULL]; I return tomenuViewController with this [self dismissModalViewControllerAnimated:YES]; What I wanted is to make the ImportantViewController to be the like the parent view or the mainVIew even if I go to other Views. What I need is when ImportantViewController is presented when I go to either C1ViewController or menuViewController it wont be deallocated, or its content there will still be retained. Is it possible? And How? I don't know much about what parent and child view controllers for so I dont know what to implement in my problem. Thank you. BTW, Im using Storyboard.

    Read the article

  • What's wrong with my self-defined init method?

    - by user313439
    In ClassA: - (ClassA *)initWithID:(NSString *) cID andTitle:(NSString *) cTitle { ClassAID = cID; ClassATitle = cTitle; return self; } In ClassB: - (void)cellDidSelected { ClassA *classAController = [[ClassA alloc] init]; //Program received signal: “EXC_BAD_ACCESS” when executing the following line. classAController = [classAController initWithClassAID:ClassAID andClassATitle:ClassATitle]; NSLog(@"I want to get the value of ID:%@ and Title:%@ here.", [classAController ClassATitle], [classAController ClassAID]) } Could anyone point where is wrong? Thanks a lot.

    Read the article

  • UIButton setBackgroundImage consumes doesn't release memory?

    - by just_another_coder
    My UIButton has it's background image set like this: [myImageButton setBackgroundImage:[UIImage imageNamed:myImageName] forState:UIControlStateNormal]; myImageButton is a retained property of the class, and is setup with IB. No where else is it accessed in the app. myImageName is simply an NSString with a filename like @"myImage_number_1.png" I am loading large images, 1024 x 1024 in size. When the view is shown, it changes the image with the above statement, then available memory decreases. After I see the view about 7-9 different times, the app crashes with a memory warning. I thought the method would free up the loaded image. The view itself is only instantiated and allocated one time, so it's not in the retain/release cycle if the view controller. Is there something about this setBackgroundImage I don't know that causes it to not release memory?

    Read the article

  • UIImagePickerController can not select picture

    - by yjcpu
    I have some problem when i work with UIImagePickerController .when I presentModalViewController,and the picker pops up right,but i can not select a picture! when i touch on the picture list, the list can only scroll up and down,but can not select! how about this? thanks.

    Read the article

  • Redrawing content of UIWebView

    - by btate
    I have a bunch of webviews with static html content that I'm putting in a scroll view as pages. That works fine, but having 20 something full screen subviews of the scroll view is causing some lag. I solved that by only placing 5 at a time in there. The current view, and the two next and two previous. The problem now is that any web view that is not a subview of the scroll view is not drawing correctly based on the device orientation. The frame of the webview is printing out correct, but the actual content is drawing in portrait mode. So there is essentially a strip of blank space to the right of the content. How do I go about re rendering the content without reloading the page? Here's the relevant code: - (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation) fromInterfaceOrientation{ [self resizeSubViews]; } - (void) setupWebViews{ if(_webViews == nil) _webViews = [[NSMutableArray alloc] init]; // This is where the navigation would come into play as far as loading up available web views [_webViews removeAllObjects]; // for loop here to create web views for (int i = 0; i < 20; i++) { //CDCWebViewController *webView = [[[MyInternalWebView alloc] initWithFrame:_webViewWrapper.frame] retain]; MyInternalWebView *page = [[[MyInternalWebView alloc] init] retain]; [page loadRequest:[NSURLRequest requestWithURL:_url]]; [page setCdcIWVdelegate:self]; [page setTestIndex:i]; [page setPageIndex:i]; [_webViews addObject:page]; [self loadScrollViewWithPage:i]; } [self clearUnusedWebViews:_pageControl.currentPage]; } - (void) setupWebViewWrapper{ // a page is the width of the scroll view _webViewWrapper.pagingEnabled = YES; _pageControl = [[[UIPageControl alloc] init] retain]; _webViewWrapper.showsHorizontalScrollIndicator = NO; _webViewWrapper.showsVerticalScrollIndicator = NO; _webViewWrapper.scrollsToTop = NO; _webViewWrapper.delegate = self; _pageControl.numberOfPages = [_webViews count]; _pageControl.currentPage = 0; } - (void) resizeSubViews{ // The frame is set in IB _webViewWrapper.contentSize = CGSizeMake(_webViewWrapper.frame.size.width * [_webViews count], _webViewWrapper.frame.size.height); // Move the content offset. _webViewWrapper.contentOffset = CGPointMake(_webViewWrapper.frame.size.width * _pageControl.currentPage, _webViewWrapper.contentOffset.y); for (MyInternalWebView *subview in _webViewWrapper.subviews) { // Reset the frame height and width here? CGRect frame = _webViewWrapper.frame; frame.origin.x = frame.size.width * subview.pageIndex; frame.origin.y = 0; [subview setFrame:frame]; } } //***************************************************** //* //* ScrollView Functions //* //***************************************************** - (void)loadScrollViewWithPage:(int)page { // Make sure we're not out of bounds if (page < 0) return; if (page >= [_webViews count]) return; MyInternalWebView *webView = [_webViews objectAtIndex:page]; // Add the preloaded webview to the scrollview if it's not there already if (nil == [webView superview]) { CGRect frame = _webViewWrapper.frame; //NSLog(@"width = %f", frame.size.width); frame.origin.x = frame.size.width * page; frame.origin.y = 0; //NSLog(@"setting frame for page %d %@", page, NSStringFromCGRect(frame)); [webView setFrame:frame]; [_webViewWrapper addSubview:[_webViews objectAtIndex:page]]; // Now that the new one is loaded, clear what doesn't need to be here [self clearUnusedWebViews:page]; } } - (void) clearUnusedWebViews: (NSInteger) page{ for (int i = 0; i < [_webViews count]; i++) { if ((page - i) <= 2 && i - page <= 2) { continue; } [[_webViews objectAtIndex:i] removeFromSuperview]; } } - (void)scrollViewDidScroll:(UIScrollView *)sender { // Switch the indicator when more than 50% of the previous/next page is visible CGFloat pageWidth = _webViewWrapper.frame.size.width; NSInteger page = floor((_webViewWrapper.contentOffset.x - pageWidth / 2) / pageWidth) + 1; _pageControl.currentPage = page; // load the visible page and the page on either side of it (to avoid flashes when the user starts scrolling) [self loadScrollViewWithPage:page - 2]; [self loadScrollViewWithPage:page - 1]; [self loadScrollViewWithPage:page]; [self loadScrollViewWithPage:page + 1]; [self loadScrollViewWithPage:page + 2]; }

    Read the article

  • Three20/TTStyle.h No such file or directory error.

    - by mac
    Hi I have project, this contains header files like. #import "Three20/TTButton.h" #import "Three20/TTStyle.h" #import "Three20/TTStyleSheet.h" #import "Three20/TTView.h" #import "Three20/TTShape.h" but i am getting no such file, directory error. But i can see those TTButton.h,TTStyle.h... are inside the Three20 Folder. Please Help me, thanks in advance.

    Read the article

  • NSManagedObject How To Reload

    - by crissag
    I have a view that consists of a table of existing objects and an Add button, which allows the user to create a new object. When the user presses Add, the object is created in the list view controller, so that the object will be part of that managed object context (via the NSEntityDescription insertNewObjectForEntityForName: method). The Add view has a property for the managed object. In the list view controller, I create an Add view controller, set the property to the managed object I created, and then push the Add view on to the navigation stack. In the Add view, I have two buttons for save and cancel. In the save, I save the managed object and pass the managed object back to the list view controller via a delegate method. If the user cancels, then I delete the object and pass nil back to the list view controller. The complication I am having in the add view is related to a UIImagePickerController. In the Add view, I have a button which allows the user to take a photo of the object (or use an existing photo from the photo library). However, the process of transferring to the UIImagePickerController and having the user use the camera, is resulting in a didReceiveMemoryWarning in the add view controller. Further, the view was unloaded, which also caused my NSManagedObject to get clobbered. My question is, how to you go about reloading the NSManagedObject in the case where it was released because of the low memory situation?

    Read the article

  • Help needed to assign the value of an object of array to a variable

    - by user594861
    Hi All, This is my code: int random=0; int counter=0; while(counter<25) { random=arc4random() % 40; BOOL flag=[array containsObject:[NSNumber numberWithInt:random] ]; if(flag) { counter--; } else { [array addObject:[NSNumber numberWithInt:random]]; int p=[array objectAtIndex:counter]; //**line4 counter++; } } getting a warning on line 4, not able to assign the value of an object of an array to a variable, please help me Thanks

    Read the article

  • Compare filedate before download it

    - by Christian
    Hi, I have an app which is downloading several plist-files when starting the app and storing them in the NSHomeDirectory/Documents/ path. This will take some time and often there is only one file that changed. My questions are: -how can I get the date of the files (the stored one and the file on my webserver)? -how can I compare the date of the stored file with the date of the file on my webserver?

    Read the article

  • Xcode: How to change Image on Touching at an Image (same Position)?

    - by Markus S.
    Simply, I have placed an image with the Interface Builder in a UIView. Now I want to run a method/function when I am touching that image, for example when another image should be loaded. My Code: - (void)touchesended:(NSSet*) touches withEvent:(UIEvent *)event { // UITouch *touch = [touch anyObject]; bild_1_1.image = [UIImage imageNamed:@"t_1_4.jpg"]; //} }

    Read the article

  • Tab bar in a View instead of Window

    - by kayue
    Is it possible to use tab bar in a view instead of window? Seems everyone add tab bar to their window. My first screen is a login screen, which doesn't need tab bar. After user login, it change to the second screen, which contain a tabbar. Thank you for your time :)

    Read the article

  • Moving UITableView cells and maintaining consistent data

    - by Mark F
    I've enabled editing mode and moving cells around to allow users to position table view content in the order they please. I'm using Core Data as the data source, which sorts the content by the attribute "userOrder". When content is first inserted, userOrder is set to a random value. The idea is that when the user moves a cell around, the userOrder of that cell changes to accomodate its new position. The following are problems I am running into while trying to accomplish this: Successfully saving the the new location of the cell and adjusting all changed locations of influenced cells. Getting the data to be consistent. For example, the TableView handles the movement fine, but when i click on the new location of the cell, it displays data for the old cell that used to be that location. Data of all influenced cells gets messed up as well. I know I have to implement this in: - (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath {} I just don't know how. The apple docs are not particularly helpful if you are using Core Data, as in my situation. Any guidance greatly appreciated!

    Read the article

  • Is there any seriously good reason why a view can not completely manage itself?

    - by mystify
    Example: I have an warning triangle icon, which is a UIImageView subclass. That warning is blended in with an animation, pulses for 3 seconds and then fades out. it always has a parent view! it's always only used this way: alloc, init, add as subview, kick off animation, when done:remove from superview So I want this: [WarningIcon warningAtPosition:CGPointMake(50.0f, 100.0f) parentView:self]; BANG! That's it. Call and forget. The view adds itself as subview to the parent, then does it's animations. And when done, it cuts itself off from the branch with [self removeFromSupeview];. Now some nerd a year ago told me: "Never cut yourself off from your own branch". In other words: A view should never ever remove itself from superview if it's no more referenced anywhere. I want to get it, really. WHY? Think about this: The hard way, I would do actually the exact same thing. Create an instance and hang me in as delegate, kick off the animation, and when the warning icon is done animating, it calls me back "hey man i'm done, get rid of me!" - so my delegate method is called with an pointer to that instance, and I do the exact same thing: [thatWarningIcon removeFromSuperview]; - BANG. Now I'd really love to know why this sucks. Life would be so easy.

    Read the article

  • Navigation Bar color doesn't change back? iOS7

    - by TKP
    I have several tableviews with navigation controller. The navigation bar is white for all the views except the last one, which is red. I have [[[self navigationController] navigationBar] setTintColor:[UIColor redColor]; in the viewDidLoad of the last tableview and [[[self navigationController] navigationBar] setTintColor:[UIColor whiteColor]; in the viewDidLoad of other table views. It works fine until I get to the last view and the color of the navigation bar changes to red. When I go back to the previous views, all the previous views' navigation bar has changed to red. Where should I put those codes so the color will remain unchanged? Thanks,

    Read the article

  • iOS - Prompt User to Update to Latest App Version

    - by Kevin_TA
    Is there any method or plugin available that will alert the user to upgrade an app if the version they are using is not the latest? I suppose I could ping a web service to check what the current version is and compare with the user's version and go from there. As an aside, is there a way to check the current version of the app (some property I don't know about) or do you simply have to hardcode the version as some float variable or something? Thanks

    Read the article

  • create CLLocationCoordinate2D from array

    - by shani
    I have a plist with dictionary of array's with coordinates (stored as strings). I want to create a CLLocationCoordinate2D from every array and crate an overlay for the map. I did that - NSString *thePath = [[NSBundle mainBundle] pathForResource:@"Roots" ofType:@"plist"]; NSDictionary *pointsDic = [[NSDictionary alloc] initWithContentsOfFile:thePath]; NSArray *pointsArray = [NSArray arrayWithArray:[pointsDic objectForKey:@"roade1"]]; CLLocationCoordinate2D pointsToUse[256]; for(int i = 0; i < 256; i++) { CGPoint p = CGPointFromString([pointsArray objectAtIndex:i]); pointsToUse[i] = CLLocationCoordinate2DMake(p.x,p.y); NSLog(@"coord %f",pointsToUse [i].longitude); NSLog(@"coord %f",pointsToUse [i].latitude); } MKPolyline *myPolyline = [MKPolyline polylineWithCoordinates:pointsToUse count:256]; [[self mv] addOverlay:myPolyline]; but the app is crashing without any error. (BTW when i remove the addOverLay method the app does not crash). I have 2 questions- What am i doing wrong? I have tried to set the pointsArray count as the argument for the CLLocationCoordinate2D like that - CLLocationCoordinate2D pointsToUse[pointsArray count]; And i am getting an error. How can i set the CLLocationCoordinate2D dynamically ? Thanks for any help. Shani

    Read the article

  • Highlighting a custom UIButton

    - by Dan Ray
    The app I'm building has LOTS of custom UIButtons laying over top of fairly precisely laid out images. Buttonish, controllish images and labels and what have you, but with a clear custom-style UIButton sitting over top of it to handle the tap. My client yesterday says, "I want that to highlight when you tap it". Never mind that it immediately pushes on a new uinavigationcontroller view... it didn't blink, and so he's confused. Oy. Here's what I've done to address it. I don't like it, but it's what I've done: I subclassed UIButton (naming it FlashingUIButton). For some reason I couldn't just configure it with a background image on control mode highlighted. It never seemed to hit the state "highlighted". Don't know why that is. So instead I wrote: -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [self setBackgroundImage:[UIImage imageNamed:@"grey_screen"] forState:UIControlStateNormal]; [self performSelector:@selector(resetImage) withObject:nil afterDelay:0.2]; [super touchesBegan:touches withEvent:event]; } -(void)resetImage { [self setBackgroundImage:nil forState:UIControlStateNormal]; } This happily lays my grey_screen.png (a 30% opaque black box) over the button when it's tapped and replaces it with happy emptyness .2 of a second later. This is fine, but it means I have to go through all my many nibs and change all my buttons from UIButtons to FlashingUIButtons. Which isn't the end of the world, but I'd really hoped to address this as a UIButton category, and hit all birds with one stone. Any suggestions for a better approach than this one?

    Read the article

< Previous Page | 537 538 539 540 541 542 543 544 545 546 547 548  | Next Page >