UI will not be updated after deleting

[StefanL]

Hi,

I am putting an Array of Images into a UIScrollView with this code:

for (i=0; i < count; i++ ){
		
		if ((i != 0) && (i % 4 == 0)) row += 1;
		if ((i != 0) && (i % 8 == 0)) { 
			page += 1;
			row = 0;
		}
		
		UIImage *imageLoop = [UIImage imageNamed:[[companyName objectAtIndex:i ]stringByAppendingString:@"_basis.png"]];
		
		UIButton *button = [[UIButton alloc] init];
		x = (i % 4) * 110 + 10;
		y = row * 80;
		
		[button setImage:imageLoop forState:UIControlStateNormal];
		[button setImage:imageLoop forState:UIControlStateHighlighted];
		
		[button addTarget:self action:@selector(productImagePressed:) forControlEvents:UIControlEventTouchUpInside];
		button.tag = t;
		button.frame = CGRectMake(page * 480 + x, y, 100, 100);
		[scrollView addSubview:button];
		
		
		t = t + 1;
	
		[button release];
	}

The Array will be counted using count(*) from my sqlite DB. On another view I am able to delete entries from the DB (which is updating the count). So far so good, everything is working, unless the Images will not be updated. If there are 8 images in the view (when I first enter it), and I delete 2 images from the DB, the number of count is: 6 but, there are still 8 images which are shown.

I tried to update using

- (void)viewDidAppearBOOL)animated;
- (void)viewWillAppearBOOL)animated;

Everywhere, but the UIScrollView will not be updated...

Thanks for any Feedback or Hints...

BR,

Stefan

[smithdale87]

it looks like you're always adding images to the scrollview, i dont see anywhere that you are removing them..

[StefanL]

Hi Smithdale,

thanks for your reply! I thought, that when I am "drawing" the UIScrollview with the new number of images, that those which have been deleted should be gone automatically...

Am I wrong?

Thanks for your advice!

BR,

Stefan

[StefanL]

Hi,

this does it...

[scrollView.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];

BR,

Stefan