Iphone 优化UITableView

我有一个UITableview，由一个从nib加载的自定义单元格组成。这个自定义单元格有9个UILabel，仅此而已。在我的iPhone上滚动表格时，表格的滚动运动有点急促，不像其他表格视图那样平滑！在模拟器上，它可以很好地滚动，但我想它使用了我的mac电脑的额外功能

是否有任何提示可以帮助优化此或任何tableview或方法来帮助找到瓶颈

非常感谢

更新：

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    // Return the number of sections.
    return [[fetchedResultsController sections] count];
}



- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    // Return the number of rows in the section.
    id <NSFetchedResultsSectionInfo> sectionInfo = [[fetchedResultsController sections] objectAtIndex:section];
    return [sectionInfo numberOfObjects];
}



- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
    //Returns the title for each section header. Title is the Date.
    id <NSFetchedResultsSectionInfo> sectionInfo = [[fetchedResultsController sections] objectAtIndex:section];
    NSArray *objects = [sectionInfo objects];
    Data *myData = [objects objectAtIndex:0];

    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateStyle:NSDateFormatterLongStyle];
    NSDate *headerDate = (NSDate *)myData.dataDate;
    NSString *headerTitle = [formatter stringFromDate:headerDate];
    [formatter release];
    return headerTitle;
}

// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *dataEntryCellIdentifier = @"dataEntryCellIdentifier";
    DataEntryCell *cell = (DataEntryCell *)[tableView dequeueReusableCellWithIdentifier:dataEntryCellIdentifier];

    if (cell == nil) {
        [[NSBundle mainBundle] loadNibNamed:@"DataEntryCell" owner:self options:nil];
        cell = self.dataEntryCell;
        self.dataEntryCell = nil;
    }

    [self configureCell:cell atIndexPath:indexPath];    
    return cell;
}

//Method to setup the labels in the cell with managed object content.
- (void)configureCell:(DataEntryCell *)cell atIndexPath:(NSIndexPath *)indexPath {
    Data *myData = [fetchedResultsController objectAtIndexPath:indexPath];

    cell.label1.text = myData.data1;
    cell.label2.text = myData.data2;
    cell.label3.text = myData.data3;
    cell.label4.text = myData.data4;
    cell.label5.text = myData.data5;
    cell.label6.text = myData.data6;
}

// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
    //Check to see if its in Delete mode
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        //Delete Object from context.
        NSManagedObjectContext *context = [fetchedResultsController managedObjectContext];
        [context deleteObject:[fetchedResultsController objectAtIndexPath:indexPath]];
        //Save Context to persitant store
        NSError *error = nil;
        if (![context save:&error]) {
            NSLog(@"Delete Error");
            exit(-1);
        }
    }     
}

// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {
    // Table is not to be manually reordered
    return NO;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    //Create a detailView instance.
    DetailViewController *detailView = [[DetailViewController alloc] initWithStyle:UITableViewStyleGrouped];
    //Pass selected data to the detailView.
    Data *myData = [fetchedResultsController objectAtIndexPath:indexPath];
    detailView.myData = myData;
    //Push the detailView onto the Nav stack.
    [self.navigationController pushViewController:detailView animated:YES];
    [detailView release];
}

看一看，它引用了Tweetie的作者。简而言之：手动绘制图形，而不使用子视图

现在可以找到原始的Tweetie文章。

看看，它引用了Tweetie的作者。简而言之：手动绘制图形，而不使用子视图

现在可以找到原始的推特文章