Searching in Array of dictionary and displaying data in table view - ios

Question

I have an array of dictionaries where I what to implement search functionality and display data on tableView cells.
Search works quite fine, I have tested it:
-(void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText {
NSString *dictionryKey = #"eViela";
NSPredicate *predicate = [NSPredicate predicateWithFormat:#"%K CONTAINS [cd] %#", dictionryKey, searchText];
NSArray *filteredArray = [self.allItems filteredArrayUsingPredicate:predicate];
NSLog(#"%#", filteredArray);
self.sortedText = filteredArray;
[self.tableView reloadData];
}
Now I need tableView to fill data only for key "eViela" while user is typing info in search bar. As of now I can show only all items as per below code:
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"SearchCell" forIndexPath:indexPath];
EvielasLibrary *library = [[EvielasLibrary alloc] init];
cell.textLabel.text = [[library.library objectAtIndex:indexPath.row]
return cell;
}
I know that it should be easy but I can't figure it out.
Thanks for help!

Answer 1

You need to get Model from array instead of create new one .
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"SearchCell" forIndexPath:indexPath];
EvielasLibrary *library = [self.sortedText objectAtIndex:indexPath.row]; // assume that self.sortedText is your data source array of tableview
cell.textLabel.text = #"" // populate your string here
return cell;
}

Answer 2

NSMutableArray *arrayForTableView = [[NSMutableArray alloc] init];
NSString *dictionryKey = #"eViela";
NSPredicate *predicate = [NSPredicate predicateWithFormat:#"SELF contains[c] %#",dictionryKey];
NSArray *filteredArray = [self.allItems filteredArrayUsingPredicate:predicate];
for (NSInteger i = 0; i<filteredArray.count; i++){
NSString *matchValue = [NSString stringWithFormat:#"%#",[filteredArray objectAtIndex:i]];
if ([matchValue isEqualToString:dictionryKey]){
[arrayForTableView addObject:matchValue];
}
}
Use arrayForTableView array for your tableview
cell.textLabel.text = [arrayForTableView objectAtIndex:indexPath.row];

Answer 3

Problem is that you not updating numberOfRowsInSection delegate method for sortedArray
You need to check if search bar is active or not. if search bar is active then use sortedText array else if search bar is not active then use library.library array
For check search bar active create a global variable isSearchBarActive And assign it true value in searchBarTextDidBeginEditing delegate function and assign false in searchBarTextDidEndEditing
Add Condition in numberOfRowInSection
if searchBarActive {
return self.sortedText.count
}
else {
return library.library.count
}
Add Condition in cellForRowAtIndexPath like this
if searchBarActive {
cell.textLabel.text = [self.sortedText objectAtIndex:indexPath.row]
}
else {
cell.textLabel.text = [library.library objectAtIndex:indexPath.row]
}