UIProgressview in subclassed UITableViewCell need to be used in other UIViewController - iphone

Question

I have a subclassed custom UITableViewCell, in which I am inserting a progress view in it.
here is how:
-(void)layoutSubviews {
applicationDelegate = [[UIApplication sharedApplication] delegate];
[super layoutSubviews];
self.imageView.frame = CGRectMake(0, 0, self.frame.size.height, self.frame.size.height);
self.textLabel.frame = CGRectMake( self.imageView.frame.size.width + 20, self.textLabel.frame.origin.y, self.textLabel.frame.size.width, self.textLabel.frame.size.height);
progressView = [[UIProgressView alloc] initWithProgressViewStyle:UIProgressViewStyleDefault];
progressView.frame = CGRectMake(self.textLabel.frame.origin.x, 50, 150, 100);
progressView.progress = 0.0f;
progressView.trackTintColor = [UIColor clearColor];
progressView.progressTintColor = [UIColor redColor];
progressView.tag = 101;
[progressView setHidden:YES];
[self.contentView addSubview:progressView];
}
Now when in other view controller I want to show this elements only in first cell, so I am trying to hide these elements in other cells. Here is how I am trying to do this in cellForRowAtIndexPath: method:
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString * cellIdentifier = #"cellId";
CustomCell * cell = [self.tableview dequeueReusableHeaderFooterViewWithIdentifier:cellIdentifier];
if (cell == Nil) {
cell = [[CustomCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:cellIdentifier];
}
if (indexPath.row == 0) {
imageData = UIImageJPEGRepresentation(cell.imageView.image, 100);
filename = cell.textLabel.text;
[(UIProgressView*)[cell.contentView viewWithTag:101] setHidden:NO];<==Not Working
}
return cell;
}
How to use this UIElements in custom UITableView subclass in my ViewController ?
I have not used xib file, everything is done programmatically. I have beed playing around this for whole day now, any one with any idea here ?

Answer 1

If only the 1st row needs to show the progress view, why not only use the custom cell for row 0 and then use a standard UITableViewCell for rows >1?
I would also recommend adding progressView to self.contentView in an init method and not in layoutSubviews. layoutSubviews is intended to position the views you already have (not add new ones) because it can be called many times over the lifetime of the cell.
I would add a BOOL property to the custom cell that determines if you should show the progress indicator (and removes it when set to NO). In cellForRowAtIndexPath: you could set it appropriately for the given row.
In CustomCell.h:
#property(nonatomic, assign) BOOL shouldShowProgressView;
In CustomCell.m:
- (void)setShouldShowProgressView:shouldShowProgressView {
_shouldShowProgressView = shouldShowProgressView;
if (shouldShowProgressView) {
if (self.someProgressView == nil) {
// add your progress view from scratch
}
[self.contentView addSubview:self.someProgressView];
} else {
[self.someProgressView removeFromSuperview];
}
}
In your table controller:
- (UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath {
static NSString *cellIdentifier = #"cellId";
CustomCell *cell = [self.tableview dequeueReusableHeaderFooterViewWithIdentifier:cellIdentifier];
if (cell == Nil) {
cell = [[CustomCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:cellIdentifier];
}
if (indexPath.row == 0) {
cell.shouldShowProgressView = YES;
} else {
cell.shouldShowProgressView = NO;
}
return cell;
}