[newbie] Crop back-buttons' text in TableView?

Discussion in 'iOS Programming' started by Danneman101, Feb 7, 2009.

  1. Danneman101 macrumors 6502

    Joined:
    Aug 14, 2008
    #1
    Ive got at simple drill-down menu using tableViews.

    When pressing a row, I get to another tableView, and the text of the row I pressed appears as a "back-button" left of the new tableView's headline. Just as they normally work, in other words.

    However, the text in a row of the first tableView can be very long in my case. This means that the back-button appearing in the second tableView will be very long as well, containing all the text and pushing the headline more and more to the right.

    So, how do I restrict the size of the back-button, and the text contained within it? Id like the effect where for instance where "Introduction" gets cropped to "Intro.." (or whatever lenght it may be), with dots at the end showing that this is a cropped word rather than a full.
     
  2. Danneman101 thread starter macrumors 6502

    Joined:
    Aug 14, 2008
    #2
    Heres a solution for anyone wondering the same thing:

    Code:
    		
    // --------------------------
    // SET:	 BACK-BUTTON-TEXT
    // --------------------------
    		
    // Create:	Temporary button to substitute the back-button with
    UIBarButtonItem *temporaryBarButtonItem = [[UIBarButtonItem alloc] init];
    		
    // Get:		Titel to be used
    NSString *tempTitle = self.navigationItem.title;
    		
    // Trim:	 To 5 letters
    NSString *shortTitle = [tempTitle substringToIndex:5];	
    		
    // Add:		Add ".." to text
    NSString *finalTitle = [shortTitle stringByAppendingString:@".."];
    		
    // Set:		Title
    temporaryBarButtonItem.title = finalTitle;
    
    		
    // Set:	         Back-button
    self.navigationItem.backBarButtonItem = temporaryBarButtonItem;
    		
    // Release:	
    [temporaryBarButtonItem release];
    
     
  3. dejo Moderator

    dejo

    Staff Member

    Joined:
    Sep 2, 2004
    Location:
    The Centennial State
    #3
    Instead of setting up a temporary button, an easier way is just to set the title of the originating UITableViewController in the didSelectRowAtIndexPath: method. Like so:
    Code:
    self.title = @"Label...";
    (Don't forget to set it back when returning to the originating view.)
     

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