iPhone SDK メモ
スタンフォード大で iPhone 開発講座とコードが公開されていたらしいが,今は削除されている.
return [[ array objectAtIndex:section] count]
cex.text = [[ array objectAtIndex:indexPath.section] objectAtIndex:indexPath.row] return cell;
でいけるだろう。
こういう方法も紹介されている.
componentsSeparatedByString関数が指定されたトークンで文字列を区切って配列を返すので,とりあえずこうする.
string = [[string componentsSeparatedByString:@"\n"] objectAtIndex:0];
ただし "\n" は Macintoshではoptions キーを押しながら円マークで入力
int syntaxType = [anObject intValue]; if (syntaxType == -1) { // エラー。例外を発生させる。 [self release]; [NSException raise:NSInvalidUnarchiveOperationException format: @"fail to decode"]; }
さまざまな情報があって錯綜している。ここにも長い議論があるが、とりあえずはここにあるように使ってみる。
Now i have another problem, when i select one and i scroll down. I see that some others are selected to. A bit strange.
You must be using a reuseIdentifier. When you go to return a cell, make sure to set it's accessoryType to the one without the checkmark unless you know it should be checked.
- (NSIndexPath *)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { SeismicXMLAppDelegate *appDelegate = (SeismicXMLAppDelegate *)[[UIApplication sharedApplication] delegate]; [appDelegate showEarthquakeInfo: [(TableViewCell *)[tableView cellForRowAtIndexPath:indexPath] quake]]; [[tableView cellForRowAtIndexPath: oldIndexPath] setAccessoryType:UITableViewCellAccessoryNone]; [[tableView cellForRowAtIndexPath: indexPath] setAccessoryType:UITableViewCellAccessoryCheckmark]; oldIndexPath = indexPath; return nil; }
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *MyIdentifier = @"MyIdentifier"; TableViewCell *cell = (TableViewCell *)[tableView dequeueReusableCellWithIdentifier:MyIdentifier]; if(indexPath == oldIndexPath){ cell.accessoryType = UITableViewCellAccessoryCheckmark; }else{ cell.accessoryType = UITableViewCellAccessoryNone; } if (cell == nil) { cell = [[[TableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:MyIdentifier] autorelease]; } // Set up the cell. SeismicXMLAppDelegate *appDelegate = (SeismicXMLAppDelegate *)[[UIApplication sharedApplication] delegate]; // If the RSS feed isn't accessible (which could happen if the network isn't available), show an informative // message in the first row of the table. if ([appDelegate isDataSourceAvailable] == NO) { cell = [[[UITableViewCell alloc] initWithFrame: CGRectZero reuseIdentifier:@"DefaultTableViewCell"] autorelease]; cell.text = NSLocalizedString(@"RSS Host Not Available", @"RSS Host Not Available message"); cell.textColor = [UIColor colorWithWhite:0.5 alpha:0.5]; cell.accessoryType = UITableViewCellAccessoryNone; return cell; } Earthquake *quakeForRow = [appDelegate objectInListAtIndex:indexPath.row]; [cell setQuake:quakeForRow]; return cell; }
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *SelectionListCellIdentifier = @"SelectionListCellIdentifier"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:SelectionListCellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:SelectionListCellIdentifier] autorelease]; } NSUInteger row = [indexPath row]; NSUInteger oldRow = [lastIndexPath row]; cell.text = [list objectAtIndex:row]; cell.accessoryType = (row == oldRow && lastIndexPath != nil) ? UITableViewCellAccessoryCheckmark : UITableViewCellAccessoryNone; return cell; }
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { int newRow = [indexPath row]; int oldRow = [lastIndexPath row]; if (newRow != oldRow) { UITableViewCell *newCell = [tableView cellForRowAtIndexPath:indexPath]; newCell.accessoryType = UITableViewCellAccessoryCheckmark; UITableViewCell *oldCell = [tableView cellForRowAtIndexPath: lastIndexPath]; oldCell.accessoryType = UITableViewCellAccessoryNone; lastIndexPath = indexPath; } [tableView deselectRowAtIndexPath:indexPath animated:YES]; }