问题描述
我希望在选择推文时具有与Twitter应用相同的行为:扩展行并添加补充内容。
I want to have the same behavior as Twitter app when selecting a tweet that is : expanding the row and adding supplementary content.
所以这不仅仅是一个基本的行调整大小。我想我需要两个不同的自定义单元格,所以我做了类似的事情:
So this is not only a basic row resize. I think i need 2 different custom cells, so i did something like that :
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
if ([indexPath compare:self.selectedIndexPath] != NSOrderedSame) {
FirstCell *cell = [tableView dequeueReusableCellWithIdentifier:@"FirstCell"];
if (!cell) {
cell = [[FirstCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"FirstCell"];
}
cell.firstnameLabel.text = [[self.items objectAtIndex:indexPath.row] objectForKey:@"firstname"];
return cell;
}
else {
SecondCell *cell = [tableView dequeueReusableCellWithIdentifier:@"SecondCell"];
if (!cell) {
cell = [[SecondCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"SecondCell"];
}
cell.firstnameLabel.text = [[self.items objectAtIndex:indexPath.row] objectForKey:@"firstname"];
cell.lastnameLabel.text = [[self.items objectAtIndex:indexPath.row] objectForKey:@"lastname"];
return cell;
}
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
if ([indexPath compare:self.selectedIndexPath] == NSOrderedSame) {
return 80.0;
} else {
return 44.0;
}
}
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
self.selectedIndexPath = indexPath;
[tableView reloadData];
}
我的问题是我想保留像Twitter应用程序一样流畅的动画不是我的情况,因为 [tableView reloadData]
(这是强制性的,我认为因为我有2个不同的自定义单元格)。
My problem here is that i want to keep a fluid animation like Twitter app which is not my case because of [tableView reloadData]
(which is mandatory i think since i have 2 different custom cell).
所以任何人都知道我需要的解决方法或者有人知道Twitter应用程序如何处理这个动画的东西?
So anyone knows a workaround to my needed or maybe someone knows how Twitter app is handling this animation stuff ?
推荐答案
您想用动画重新加载该单元格:
You want to reload that cell with an animation:
[tableView beginUpdates];
[tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
[tableView endUpdates];
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