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  • willSelectRowAtIndexPath Question....

    - by treasure
    How do you add a second section (SECOND_SECTION) here to be excluded from selection when editing? (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath { NSIndexPath *rowToSelect = indexPath; NSInteger section = indexPath.section; BOOL isEditing = self.editing; // If editing, don't allow notes to be selected // Not editing: Only allow notes to be selected if ((isEditing && section == ONE_SECTION) || (!isEditing && section != ONE_SECTION)) { [tableView deselectRowAtIndexPath:indexPath animated:YES]; rowToSelect = nil; } return rowToSelect; } it s being driving me nuts... thanks

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  • UIImage Fade in after load on my UITable

    - by Cy
    I have an UIImage that loads from the web, and I'd like it to fade in when it displays in my UITableCell. if([thumb image]) { UIImage *imagen = [thumb.image retain]; [imagen drawInRect:CGRectMake(15, 4, 44, 44)]; [imagen release]; } How could I achieve it?

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  • How to have a UIView on top of TabBar?

    - by balexandre
    How can I get my UIPickerView to apear on top of the TabBar? http://bit.ly/aSFKYY This is a TabBar Application and that NIB file contain 2 views That I animate to show / hide instead of the keyboard, but the keyboard animates on top of all UIViews. How can I accomplish this with my Custom View?

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  • Graph generation on iPhone

    - by Parrots
    Anyone have experience with drawing graphs on the iPhone? Looks like GraphKit isn't an option, so it's up to the programmer to either write his own library (using OpenGL, I guess), or an existing library. I can't seem to find any libraries that are confirmed to work on the iPhone. If you've written your own how did you go about it (opengl, quartz, etc), or if you used a library which one?

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  • Delegate Method only Firing after 5 or so Button Presses?

    - by CoDEFRo
    I'm having the most bizarre problem which I'm not even close to figuring out. I have a button which fires a delegate method. Once upon a time it was working fine, but after making some changes to my code, now the delegate method only fires after I push the button x amount of times (the changes I made to the code had nothing to do with the infrastructure that connects the delegate together). It varies, it can be 5 times to 10 times. I used the analyzer to check for memory leaks and there aren't any. There is too much code for me to paste here (I don't even know where to start or where the problem could be), but I'm wondering if anyone has experienced this problem before, or what could be causing it? This is very odd and have no clue what could be causing it.

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  • plus minus table View cell

    - by user1748387
    I have the following code - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; UIImage * i1 = [UIImage imageNamed: @"inc_01.png"]; UIImage * i2 = [UIImage imageNamed: @"inc_02.png"]; UIImage * i3 = [UIImage imageNamed: @"inc_04.png"]; UIImage * i5 = [UIImage imageNamed: @"inc_05.png"]; UIImage * i6 = [UIImage imageNamed: @"inc_06.png"]; UIImage * i7 = [UIImage imageNamed: @"inchd.png"]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; } if(indexPath.row == 0) { UIImageView * header= [[UIImageView alloc] initWithImage: i1]; cell.backgroundView = header; // Configure the cell… } else if (indexPath.row == 2) { UIImageView *backgroundCellImage=[[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 280, 11)]; backgroundCellImage.image=[UIImage imageNamed:@"inc_06.png"]; [cell.contentView addSubview:backgroundCellImage]; } else { // Configure the cell… UIImageView *imageView = [[UIImageView alloc] initWithImage: i3]; cell.textLabel.text = @"text"; UIImageView *backgroundCellImage=[[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 57, 46)]; backgroundCellImage.image=[UIImage imageNamed:@"inc_02.png"]; UIImageView *backgroundCellImage2=[[UIImageView alloc] initWithFrame:CGRectMake(223, 0, 57, 46)]; backgroundCellImage2.image=[UIImage imageNamed:@"inc_04.png"]; UILabel * label = [[UILabel alloc] initWithFrame:CGRectMake(57, 0, 166, 46)]; label.text = @"wow"; [cell.contentView addSubview:backgroundCellImage]; [cell.contentView addSubview:backgroundCellImage2]; [cell.contentView addSubview:label]; } return cell; } that basically creates a table view and puts an image to the left and right of each cell. I want it so that people can click on the left or right image in each cell, and something different happens based on the cell number. So if they click on the left image for cell in row 1, a function gets call with the row number they clicked on, and an indicator telling me they clicked on the left image and not the right image. How can I do that using objective-c?

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  • CADisplayLink stops updating when UIScrollView scrolled

    - by Tricky
    Title is quite self explanatory, but I have some animation being done in a loop triggered by CADisplayLink. However, as soon as I scroll a UIScrollView I have added to my view hierarchy, the animation stops immediately, only to return again when scrolling has completely stopped and come to a standstill.... Anyway to cancel this behaviour?

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  • UITableViewCell: Allowing Selective Deletion

    - by Aran Mulholland
    I have a table view and want to allow rearranging of all cells, however there are certain cells that i do not want to be allowed to be deleted. when the UiTableView is put into deletion mode i do not want the red '-' button to appear on the left hand side, and do not want the swipe gesture to bring up the Delete button of these cells but want it to happen for the others. Any ideas?

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  • Difference between two UIScrollView delegates

    - by Michael
    scrollViewDidEndScrollingAnimation and scrollViewDidEndDecelerating Looks like the last one is called when the bouncing effect is finished. But can't really understand what's the difference between first because they are called same time(well, decelerating called first).

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  • rotating UITableViewController manually

    - by lope
    Hi there, I am trying to do something I am not really sure is possible :) I have application that is in portrait mode and doesn't react to device rotation. Almost all parts of app work best in portrait so I disabled autorotation. But one part should be viewed in landscape. I just drawed my view rotated by 90 degrees and with this forced user to rotate device (again no autorotation). Everything was ok until I added UITableViewController that is invoked from this (and only from this) rotated view. Table view is of course in portrait mode, so user has to rotate device again, which is not really user friendly experience. My problem is, how to manually rotate table view so it is in landscape mode without using autorotation feature. I was able to rotate it using transform, but I can't position it properly. Is this right way of doing this or did I missed something that would make this trivial task? I don't want to use autorotation because both part are pretty separated from each other and each of them would be almost useless in other's mode

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  • iOS - How to pass information from the VIEW to the Controller?

    - by user1720503
    I am fairly new to programming in general, and have been following the CS193p videos on iTunesU. I am currently doing assignment 3, and am having trouble getting a bit of information from the View sent to the View Controller. I believe I have set up the whole delegation thing correctly, so the question really is to how to get my View Controller to see a bit of information (such as self.bounds.size.width), which is a property that only the View has. Would this involve using self.dataSource? And if so, through what means could I pass this bit of information? Thanks!!

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  • Improving the efficiency of multiple concurrent Core Animation animations

    - by Alex
    I have a view in my app that is very similar to the month view in the built-in Calendar app. There's a subview that holds the individual cells (a custom UIView subclass that draws text into its layer), and when the user navigates to the next "month", I create the new cells and slide the view to show them. When the animation stops, I remove the old, hidden cells and set things up so it's ready to go for the next animation. This all works nicely. However, I'd like to animate the cells' text color, as in the Calendar app, so that the outgoing ones transition to a lighter color and the incoming ones transition to a darker color. The problems is that I can have as many as 70 cells, so doing individual animations is very slow -- between 5-10 fps on my iPhone 3GS. I'm trying to find a less computationally intense way of doing this. My reading of the Shark results is that the majority of the time is spent redrawing the text for each frame for each frame. This makes sense, since text rendering is hardly the cheapest operation. I've considered creating a second view -- one holding the "outgoing" state and one holding the "incoming" state and using a single opacity animation to gradually reveal the updated cells while both are sliding. I'm concerned that instead of having 70 cells, I'll have 140, which seems like a lot of views. So, is that too many views or would there be a better way of doing this?

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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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  • 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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  • 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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  • How do I remove the alert: "...may not respond to..."

    - by balexandre
    In my .m file I call a method that is inside the same .m file. In the header I have the correct import for the header but I keep getting this alert: What am I doing wrong? What should I do in order to make this error disappear? I'm kinda lost here :-( Even if I changed this to: NSString *path = [[NSString alloc] initWithString:@"...."]; [self parseXMLFileAtURL:path]; [path release];

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  • Why won't my UITableViewCell deselect and update its text?

    - by Josh
    I have a UITableView with a list of stories and a cell at the bottom that loads more stories. I am trying to make the "More Stories..." cell deselect and change its text to "Loading..." when clicked. I have searched all over the internet and all over stackoverflow and I cant figure out why my code isnt working right. Right now, when the "More Stories..." cell is clicked, it stays selected and doesnt ever change its text. - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { // Navigation logic int storyIndex = [indexPath indexAtPosition: [indexPath length] - 1]; if (storyIndex == [stories count]) { UITableViewCell *moreCell = [tableView dequeueReusableCellWithIdentifier:@"more"]; if (moreCell == nil) { moreCell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"more"] autorelease]; } // Set up the cell moreCell.textLabel.text = @"Loading..."; [tableView deselectRowAtIndexPath:indexPath animated:YES]; [self moreStories]; } else { NSLog(@"%@",[[stories objectAtIndex: storyIndex] objectForKey: @"link"]); webViewController *webController; webController = [[webViewController alloc] initWithURLPassed:[[stories objectAtIndex: storyIndex] objectForKey: @"link"]]; [self.navigationController pushViewController:webController animated:YES]; [webController release]; webController =nil; self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStylePlain target:nil action:nil]; } }

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  • How do I get a reference to a rootViewController to a sub-view?

    - by Andy
    An answer posted for one of my previous questions brings up another question; I am calling a new view controller, "RuleBuilder," from my rootViewController. The rootViewController holds a reference to a contacts array. How do I get a reference to that array into the RuleBuilder? I tried adding UITableViewController *rootViewController; ... @property (nonatomic, retain) UITableViewController *rootViewController; to RuleBuilder.h, and then @synthesize rootViewController; in RuleBuilder.m. When I instantiate and push the RuleBuilder from within rootViewController, I do this: ruleBuilder.rootViewController = self; But when I try this [rootViewController.contacts addObject:newContact]; from within RuleBuilder, I get a compiler error to the effect of "request for 'contacts' in something not a struct" (or very similar; I haven't implemented this exact snippet of code, but I tried an identical approach not an hour ago for a couple of different references that I never was able to get working). Thanks, again, for your help.

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  • How to set the attributes of cell progamatically without using nib file ?

    - by srikanth rongali
    - (void)viewDidLoad { [super viewDidLoad]; // Uncomment the following line to display an Edit button in the navigation bar for this view controller. self.title = @"Library"; self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Close" style:UIBarButtonItemStyleBordered target:self action:@selector(close:)]; self.tableView.rowHeight = 80; } -(void)close:(id)sender { // } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease]; UILabel *dateLabel = [[UILabel alloc]init]; dateLabel.frame = CGRectMake(85.0f, 6.0f, 200.0f, 20.0f); dateLabel.tag = tag1; [cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator]; cell.contentView.frame = CGRectMake(0.0f, 0.0f, 320.0f, 80.0f); [cell.contentView addSubview:dateLabel]; [dateLabel release]; } // Set up the cell... //[(UILabel *)[cell viewWithTag:tag1] setText:@"Date"]; cell.textLabel.text = @"Date"; return cell; } But the control is not entering into the tableView: method. So I could not see any label in my table. How can I make this ? Thank You

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  • Application to download video from youtube

    - by Nidal Saed
    I making an application to view videos form youtube, and I think it is very easy to write a code to make the user be able download the videos and save it in the documents folder of the application, my questions are: 1) is it legal to do this, and is there any concern of the application being rejected? 2) is it possible to make the user watch the video and when he finish (watched all the video) get this data and save it, (not to download it again since he already watched the video and downloaded it).

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