我已经尝试过各种解决方案，但它们似乎不起作用。插入和删除操作后出现一致性异常。
目前我使用 reloadSection 方法作为临时解决方案，这提供了糟糕的动画体验。
如何使用 insertRowsWithAnimation 和 deleteRowsWithAnimation 这将在以下代码中产生正确的动画:
- (void) imageTapped:(id)sender {
@try {
UIButton *button = sender;
NSInteger tag = button.tag;
GroupNode *group = [[dictGroups objectForKey:@"0"] objectAtIndex:tag];
NSMutableArray *arr = [[CommonModel shared]GetAllGroupNodesByTreeId:group.TreeId];
BOOL isVisited = NO;
GroupNode *nextNode;
for(GroupNode *gp in arr)
{
if(!isVisited)
{
if([gp.Id isEqual:group.Id])
{
isVisited = YES;
}
}
else
{
nextNode = gp;
break;
}
}
if(![group.Indent isEqual:@"0"] && [nextNode.Indent intValue] == [group.Indent intValue] + 1)
{
if ([arrExpandedGroups containsObject:group.Id]) {
[arrExpandedGroups removeObject:group.Id];
NSMutableArray *insertIndexPaths = [[NSMutableArray alloc] init];
NSMutableArray *deleteIndexPaths = [[NSMutableArray alloc] init];
NSMutableArray *arr1 = [dictGroups objectForKey:@"0"];
NSMutableArray *arrDelete = [[NSMutableArray alloc]init];
BOOL isChild = YES;
for(int i = 0; i< arr1.count;i++)
{
GroupNode *gp = [arr1 objectAtIndex:i];
if(![group.Id isEqual:gp.Id])
{
if([arr1 indexOfObject:gp] < [arr1 indexOfObject:group])
{
[arrDelete addObject:gp];
}
else
{
if(([gp.Indent intValue] > [group.Indent intValue]) && !isChild)
{
[arrDelete addObject:gp];
}
else if(([gp.Indent intValue] <= [group.Indent intValue]))
{
[arrDelete addObject:gp];
isChild = NO;
}
else
{
[deleteIndexPaths addObject:[NSIndexPath indexPathForRow:i inSection:0]];
}
}
}
else
{
[arrDelete addObject:gp];
[dictExpand removeObjectForKey:[NSString stringWithFormat:@"%i", (int)button.tag]];
button.tag = [arrDelete indexOfObject:gp];
[dictExpand setObject:@"no" forKey:[NSString stringWithFormat:@"%i", (int)button.tag]];
for(NSString *key in dictExpand.allKeys)
{
if(![key isEqual:[NSString stringWithFormat:@"%i", (int)button.tag]])
{
if([group.Indent intValue] == 1)
[dictExpand setObject:@"no" forKey:key];
}
}
}
}
[tableGroup beginUpdates];
[dictGroups setObject:arrDelete forKey:@"0"];
NSRange range = NSMakeRange(0, 1);
NSIndexSet *sectionToReload = [NSIndexSet indexSetWithIndexesInRange:range];
[tableGroup reloadSections:sectionToReload withRowAnimation:UITableViewRowAnimationNone];
[tableGroup endUpdates];
} else {
if([group.Indent intValue] == 1)
[arrExpandedGroups removeAllObjects];
[arrExpandedGroups addObject:group.Id];
NSMutableArray *arrAdd = [NSMutableArray new];
NSMutableArray *insertIndexPaths = [[NSMutableArray alloc] init];
NSMutableArray *deleteIndexPaths = [[NSMutableArray alloc] init];
NSMutableArray *arr1 = [dictGroups objectForKey:@"0"];
BOOL isVisited = NO;
BOOL isMainVisited = NO;
int icount = 0;
for(GroupNode *gp in arr)
{
BOOL isPresentInArr1 = NO;
for(GroupNode *g in arr1)
{
if([g.Id isEqual:gp.Id] && ![group.Indent isEqual:@"1"])
{
isPresentInArr1 = YES;
break;
}
}
if(!isVisited && (([gp.Indent intValue] == 0 || [gp.Indent intValue] == 1) || isPresentInArr1))
{
[arrAdd addObject:gp];
[insertIndexPaths addObject:[NSIndexPath indexPathForRow:icount inSection:0]];
if([gp.Id isEqual:group.Id])
{
isVisited = YES;
[dictExpand removeObjectForKey:[NSString stringWithFormat:@"%i", (int)button.tag]];
button.tag = [arrAdd indexOfObject:gp];
[dictExpand setObject:@"yes" forKey:[NSString stringWithFormat:@"%i", (int)button.tag]];
for(NSString *key in dictExpand.allKeys)
{
if(![key isEqual:[NSString stringWithFormat:@"%i", (int)button.tag]])
{
if([group.Indent intValue] == 1)
[dictExpand setObject:@"no" forKey:key];
}
}
}
}
else if(isVisited)
{
if([gp.Indent intValue] > [group.Indent intValue] && ([gp.Indent intValue] == [group.Indent intValue] + 1) && !isMainVisited)
{
[arrAdd addObject:gp];
[insertIndexPaths addObject:[NSIndexPath indexPathForRow:icount inSection:0]];
}
else if([group.Indent intValue] > 1 && [gp.Indent intValue] == [group.Indent intValue] && !isMainVisited)
{
[arrAdd addObject:gp];
[insertIndexPaths addObject:[NSIndexPath indexPathForRow:icount inSection:0]];
}
else if([gp.Indent intValue] <= 1 && !isMainVisited)
{
[arrAdd addObject:gp];
[insertIndexPaths addObject:[NSIndexPath indexPathForRow:icount inSection:0]];
isMainVisited = YES;
}
else if([gp.Indent intValue] <= 1 && isMainVisited)
{
[arrAdd addObject:gp];
[insertIndexPaths addObject:[NSIndexPath indexPathForRow:icount inSection:0]];
}
else
{
for(GroupNode *gn in arr1)
{
if([gn.Id isEqual:gp.Id])
[deleteIndexPaths addObject:[NSIndexPath indexPathForRow:icount inSection:0]];
}
}
}
icount ++;
}
[dictGroups setObject:arrAdd forKey:@"0"];
[tableGroup beginUpdates];
NSRange range = NSMakeRange(0, 1);
NSIndexSet *sectionToReload = [NSIndexSet indexSetWithIndexesInRange:range];
[tableGroup reloadSections:sectionToReload withRowAnimation:UITableViewRowAnimationNone];
[tableGroup endUpdates];
}
}
}
@catch (NSException *exception) {
}
}
我知道这是一个复杂的逻辑，但这就是它的工作原理。
arr - 所有数据库记录数组
arr1 - 所有显示的记录
编号的行数 :
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
int count = (int)[[dictGroups objectForKey:@"0"] count];
return count;
}
此数字始终与 imageTapped 函数中数组中的记录数相同。
最佳答案
当您将行添加到数组中时，也会在 TableView 中插入行。您立即重新加载了整个部分...这可能是个问题!(我不确定!!!)
在添加行时更新索引路径时添加:
[tableView insertRowsAtIndexPaths:[NSMutableArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
删除索引时是这样的:
[tableView deleteRowsAtIndexPaths:[NSMutableArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
这可能会有所帮助，如果没有，请尝试更改代码中的以下行:
[tableGroup reloadSections:sectionToReload withRowAnimation:UITableViewRowAnimationNone];
到:
[tableGroup reloadSections:sectionToReload withRowAnimation:UITableViewRowAnimationFade];
关于ios - 关于插入和删除单元格的 UITableView 动画问题，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/36151001/