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This document discusses customizing table view cells using a nib file. It describes loading a nib file called PhotoTableCell.xib, which contains a table view cell with subviews like a UIImageView and UILabels. The nib is loaded in tableView:cellForRowAtIndexPath: and the subviews are configured using tags to display photo data from an array. Setting the row height in the table view matches the height of the custom cell in the PhotoTableCell nib.

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Chapter 8 Custom TableView Cell Bit Academy
? ? NIB . ? NIB Top Level . ? .
? , , . ? . ? UITableViewCell .
IB NIB
NIB ? File->New IOS User Interface View Next PhotoTableCell ? PhotoTableCell.xib ? PhotoTableCell.xib IB View TableViewCell TableViewCell UIImageView, UILabel . ? UIImageView Mode Aspect To Fit .
? IB ? IB IBOutlet property ? viewWithTag: ? Tag 0 .
? tableView: cellForRowAtIndexPath: , PhotoTableCell.nib tag ? nib ( ) ? [NSBundle mainBundle]
NSBundle Class ? NSBundle . ? mainBundle : NSBundle . + (NSBundle *)mainBundle ? - (NSArray *)loadNibNamed:(NSString *)name owner: (id)owner options:(NSDictionary *)options name category NSBundle nib The name of the nib ?le, which need not include the .nib extension. owner :nib File's Owner object. options : A dictionary containing the options to use when opening the nib ?le. For a list of available keys for this dictionary, see Nib File Loading Options. Nib Toplevel ( root View 0 .)
tableView: cellForRowAtIndexpath: - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [[self appDelegate].photoArray count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { //cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease]; NSArray *topLevelObjects = [[NSBundle mainBundle] loadNibNamed:@"PhotoTableCell" owner:self options:nil]; cell = [topLevelObjects objectAtIndex:0]; // } ! NSDictionary *photoData = [[self appDelegate].photoArray objectAtIndex:indexPath.row]; ! ! // cell.textLabel.text = [photoData valueForKey:@"Country"]; ! // cell.detailTextLabel.text = [photoData valueForKey:@"Region"]; ! // cell.imageView.image = [photoData valueForKey:@"Thumbnail"]; UIImageView *imageView = (UIImageView *) [cell viewWithTag:1]; imageView.image = [photoData valueForKey:@"Thumbnail"]; UILabel *label; label = (UILabel *) [cell viewWithTag:2]; label.text = [photoData valueForKey:@"Country"]; label = (UILabel *) [cell viewWithTag:3]; label.text = [photoData valueForKey:@"Region"]; ! cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; return cell; }
? RootViewController.xib Tableview Row height PhotoTableCell.xib height .

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?????(6) pdf

  • 1. Chapter 8 Custom TableView Cell Bit Academy
  • 2. ? ? NIB . ? NIB Top Level . ? .
  • 3. ? , , . ? . ? UITableViewCell .
  • 4. IB NIB
  • 5. NIB ? File->New IOS User Interface View Next PhotoTableCell ? PhotoTableCell.xib ? PhotoTableCell.xib IB View TableViewCell TableViewCell UIImageView, UILabel . ? UIImageView Mode Aspect To Fit .
  • 6. ? IB ? IB IBOutlet property ? viewWithTag: ? Tag 0 .
  • 7. ? tableView: cellForRowAtIndexPath: , PhotoTableCell.nib tag ? nib ( ) ? [NSBundle mainBundle]
  • 8. NSBundle Class ? NSBundle . ? mainBundle : NSBundle . + (NSBundle *)mainBundle ? - (NSArray *)loadNibNamed:(NSString *)name owner: (id)owner options:(NSDictionary *)options name category NSBundle nib The name of the nib ?le, which need not include the .nib extension. owner :nib File's Owner object. options : A dictionary containing the options to use when opening the nib ?le. For a list of available keys for this dictionary, see Nib File Loading Options. Nib Toplevel ( root View 0 .)
  • 9. tableView: cellForRowAtIndexpath: - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [[self appDelegate].photoArray count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { //cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease]; NSArray *topLevelObjects = [[NSBundle mainBundle] loadNibNamed:@"PhotoTableCell" owner:self options:nil]; cell = [topLevelObjects objectAtIndex:0]; // } ! NSDictionary *photoData = [[self appDelegate].photoArray objectAtIndex:indexPath.row]; ! ! // cell.textLabel.text = [photoData valueForKey:@"Country"]; ! // cell.detailTextLabel.text = [photoData valueForKey:@"Region"]; ! // cell.imageView.image = [photoData valueForKey:@"Thumbnail"]; UIImageView *imageView = (UIImageView *) [cell viewWithTag:1]; imageView.image = [photoData valueForKey:@"Thumbnail"]; UILabel *label; label = (UILabel *) [cell viewWithTag:2]; label.text = [photoData valueForKey:@"Country"]; label = (UILabel *) [cell viewWithTag:3]; label.text = [photoData valueForKey:@"Region"]; ! cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; return cell; }
  • 10. ? RootViewController.xib Tableview Row height PhotoTableCell.xib height .