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我在應用程序中創建了一個功能,當點擊單元格時加載自定義單元格。點擊單元格會顯示額外的按鈕,再次點擊會隱藏它,沒有問題。不過,我認爲當點擊當前選定行旁邊的行時,我有一個單元重用問題。看截圖,我點擊北加州然後按鈕顯示,當我點擊埃塞俄比亞的結果是第二個截圖。自定義表格視圖單元格的單元重用問題
http://i228.photobucket.com/albums/ee262/romano2717/reuse.jpg
這裏的代碼
if(selectedIndexPath != nil && [selectedIndexPath isEqual:indexPath]) {
selectedIndex = indexPath.row;
NSLog(@"selectedIndex %d",selectedIndex);
static NSString *CustomCellIdentifier = @"CustomCell";
CustomCell *customCell = (CustomCell *)[tableView dequeueReusableCellWithIdentifier: CustomCellIdentifier];
if (customCell == nil) {
customCell = [[[CustomCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CustomCellIdentifier] autorelease];
}
customCell.locationLabelOutlet.text = [usgsFeeds objectAtIndex:[indexPath row]];
customCell.dateLabelOutlet.text = [pubDateArr objectAtIndex:[indexPath row]];
float thisMag;
thisMag = [(NSNumber *)[magnitudeArr objectAtIndex:[indexPath row]] floatValue];
customCell.magnitudeImageOutlet.image = [self imageForMagnitude:thisMag];
[customCell setSelectionStyle:UITableViewCellSelectionStyleNone];
return customCell;
}
else{
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
[cell setSelectionStyle:UITableViewCellSelectionStyleNone];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
locationLabel = [[[UILabel alloc] initWithFrame:CGRectMake(10, 3, 225, 20)] autorelease];
locationLabel.tag = kLocationLabelTag;
locationLabel.font = [UIFont fontWithName:@"Helvetica-Bold" size:14.0];
locationLabel.backgroundColor = [UIColor clearColor];
[cell.contentView addSubview:locationLabel];
//same as above will follow
}
else{
locationLabel = (UILabel *)[cell.contentView viewWithTag:kLocationLabelTag];
dateLabel = (UILabel *)[cell.contentView viewWithTag:kDateLabelTag];
magnitudeImage = (UIImageView *)[cell.contentView viewWithTag:kMagnitudeImgTag];
}
locationLabel.text = [usgsFeeds objectAtIndex:[indexPath row]];
dateLabel.text = [pubDateArr objectAtIndex:[indexPath row]];
float thisMag;
thisMag = [(NSNumber *)[magnitudeArr objectAtIndex:[indexPath row]] floatValue];
magnitudeImage.image = [self imageForMagnitude:thisMag];
return cell;
}
,這是我的自定義單元格
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:
(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
locationLabelOutlet = [[UILabel alloc] initWithFrame:CGRectMake(10, 3, 210, 17)];
locationLabelOutlet.font = [UIFont fontWithName:@"Helvetica-Bold" size:14.0];
locationLabelOutlet.backgroundColor = [UIColor clearColor];
//and other outlets
[thisContainer addSubview:locationLabelOutlet];
[thisContainer addSubview:magnitudeImageOutlet];
[thisContainer addSubview:dateLabelOutlet];
[buttonsView addSubview:locButton];
[buttonsView addSubview:detButton];
[buttonsView addSubview:shabutton];
[buttonsView addSubview:favButton];
[thisContainer addSubview:buttonsView];
[self.contentView addSubview:thisContainer];
這對於沒有選擇
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:
(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:NO];
selectedIndexPath = indexPath;
if(selectedIndex == indexPath.row)
{
selectedIndexPath = nil;
[tableView reloadRowsAtIndexPaths:
[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
selectedIndex = -1;
return;
}
if(selectedIndexPath != nil && [selectedIndexPath isEqual:indexPath]) {
[tableView reloadRowsAtIndexPaths:
[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
}
}
謝謝,但它沒有工作,代碼工作在單擊。無論如何,我做了你所說的並用這段代碼重新載入先前選定的單元格。 (selectedIndex> = 0) 如果(selectedIndex> = 0) { NSIndexPath * previousPath = [NSIndexPath indexPathForRow:selectedIndex inSection:0]; selectedIndex = indexPath.row; [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:previousPath] withRowAnimation:UITableViewRowAnimationFade]; } 它的工作現在但動畫不那麼尖銳。 :d – Diffy