Selecting different UITableViewCells from indexPath alone - ios

Question

I have a scenario where upon selecting a UITableViewCell in didSelectRowAtIndexPath:, I need to load and get the information from a different UITableViewCell.
I'm registering and using two different xibs to be used as my tableViewCells to allow for some more customization.
- (void)viewDidLoad{
[super viewDidLoad];
self.TABLE_ROW_HEIGHT = 66;
self.tblView.delegate = self;
self.tblView.dataSource = self;
[self.tblView registerNib:[UINib nibWithNibName:#"BasicCell" bundle:nil] forCellReuseIdentifier:#"BasicCell"];
[self.tblView registerNib:[UINib nibWithNibName:#"DetailCell" bundle:nil] forCellReuseIdentifier:#"DetailCell"];
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
//Property of the view controller which is an IndexPath
self.selectedIndex = indexPath;
BasicModel *basicModel = [self.models objectAtIndex:indexPath.row];
[self.apiClient detailModelSearch:basicModel.id];
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
if([self.selectedIndex isEqual:indexPath]){
return 400.0f;
}
return 66.0f;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
BasicModel *basicModel = [self.models objectAtIndex:indexPath.row];
UITableViewCell *tableCell = nil;
if([self.selectedIndex isEqual:indexPath]){
DetailCell *detailCell = [tableView dequeueReusableCellWithIdentifier:#"DetailCell"];
tableCell = detailCell;
}
else{
BasicCell *basicCell = [tableView dequeueReusableCellWithIdentifier:#"BasicCell"];
tableCell = basicCell;
}
return tableCell;
}
-(APIClient *)apiClient{
if(!_apiClient){
_apiClient = [APIClient new];
__weak ViewController *_self = self;
_apiClient.detailModelSearchFinished = ^(DetailModel *detailModel){
_self.detailModel = detailModel;
//Problem is here
DetailCell *cell = [_self.tblView cellForRowAtIndexPath:_self.selectedIndexPath;
dispatch_async(dispatch_get_main_queue(), ^{
[_self.tblView beginUpdates];
[_self.tblView endUpdates];
[_self.tblView reloadData];
});
};
}
return _apiClient;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return self.models.count;
}
The basic structure is as follows.
App load and loads all BasicModels into the the models array.
User selects a cell which prompts an API detail search request
When detail search request is finished, the callback returns a DetailModel
What should happen next is since I know the selected index path of the touched cell, I want to use the DetailCell instead of the BasicCell to present the detailedInformation that comes from the DetailModel. My problem is when I call
DetailCell *cell = [_self.tblView cellForRowAtIndexPath:_self.selectedIndexPath;
I always receive the BasicCell that does not have the detailed view components I need to bind the detailModel to.
BasicCell xib
Detail Cell Xib
Table View Normal:
Table View Expanded with detail Cel xib

Answer 1

Ok now is very clear.
I can think of two ways, one is if you don't care about fancy animations just remove the (basic) cell and insert a new (detail) cell at the same index path, only after tho you have updated the model as well and perform the eventual type checks.
Quick and dirty, if you want something more clean you may want to refactor the model objects using polimorfism or other suitable patterns.
Another way is to update directly the cell with the received data. You may apply some fancy animations but loosing possibly some performances advantages.

Answer 2

Pretty simple solution actually. Reload data must be called before I can grab the expanded cell. Simple as this:
[_self.tblView beginUpdates];
[_self.tblView endUpdates];
[_self.tblView reloadData];
DetailCell *expandedCell = (DetailCell *) [_self.tblView cellForRowAtIndexPath:_self.selectedIndex];
expandedCell.lblData.text = #"IT WORKS!";
});