iOS multiple viewcontrollers - ios

Question

I am new to iOS programming.
I have to implement a location search based on the third party map API, but I think I have messed up multiple view controllers.
Scenario:
I have a mapviewController for displaying the mapview. And I have a searchController for searchbar. There is a resultviewController property in searchController for display the search suggestions.
I have tried to add search VC as child VC to map VC, but once I click to the search bar it returns "Application tried to present modally an active controller".
So then I remove search VC from map VC & the search bar is not activated.
Therefore I want to ask how to handle these VCs, and avoid the case that map view covers the search bar and suggestion lists.
Thank you so much.
UPDATE:
I'm building a search bar in code. My aim is to build the following style in iOS.
like this http://i1.tietuku.com/cd4efa23d97af75ft.jpg
I pushed the map viewController to the navigation controller from menu.
[self.navigationController pushViewController:mapviewController animated:YES];
And trying to add a searchController to it.
- (void)viewDidLoad {
[super viewDidLoad];
_resultsTableController = [[UITableViewController alloc] init];
_searchController = [[UISearchController alloc] initWithSearchResultsController:self.resultsTableController];
_searchController.searchResultsUpdater = self;
[_searchController.searchBar sizeToFit];
_resultsTableController.tableView.tableHeaderView = _searchController.searchBar;
self.searchController.searchBar.delegate = self;
_resultsTableController.tableView.delegate = self;
_searchController.delegate = self;
_searchController.dimsBackgroundDuringPresentation = NO;
_searchController.searchBar.delegate = self;
mapView = [[BMKMapView alloc]initWithFrame:CGRectMake(0, kHeight(100), kScreen_Width , kScreen_Height-kHeight(100))];
[self addChildViewController:_searchController];
[self.view addSubview: _searchController.view];
[self.view addSubview:mapView];
}

Answer 1

for UISearchController you no need to add it as child view controller and and instant of using UITableViewController uses UITableView it make easy for you and
here below is code that is .m file
free to run that code and without uses storyboard.
#interface ViewController ()
{
UITableView *tableview;
UISearchController *searchcontroller;
NSMutableArray *array;}
#end
#implementation ViewController
(void)viewDidLoad
{
[super viewDidLoad];
array = [[NSMutableArray alloc]initWithObjects:#"one",#"two",#"three",#"four", nil];
tableview = [[UITableView alloc]initWithFrame:CGRectMake(0, 50, CGRectGetWidth(self.view.frame), CGRectGetHeight(self.view.frame)/2)];
[self.view addSubview:tableview];
tableview.dataSource = self;
tableview.delegate =self;
searchcontroller = [[UISearchController alloc]initWithSearchResultsController:nil]; // Create Reference of searchController
searchcontroller.searchResultsUpdater = self;
searchcontroller.searchBar.backgroundColor = [UIColor redColor];
searchcontroller.searchBar.barStyle = UIBarStyleBlack;
searchcontroller.searchBar.barTintColor = [UIColor whiteColor];
searchcontroller.dimsBackgroundDuringPresentation = false;
[searchcontroller.searchBar sizeToFit];
tableview.tableHeaderView = searchcontroller.searchBar;
MKMapView *mapview = [[MKMapView alloc]initWithFrame:CGRectMake(0, CGRectGetMaxY(tableview.frame), CGRectGetWidth(self.view.frame), CGRectGetHeight(self.view.frame)/2)];
[self.view addSubview:mapview];
}
(void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)updateSearchResultsForSearchController:(UISearchController *)searchController;
{
NSLog(#"update ");
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView;
// Default is 1 if not implemented
{
return 1;
}
(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return array.count;
}
(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *identifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:identifier];
}
cell.textLabel.text = array[indexPath.row];
return cell;
}

Answer 2

According to me you should use only one view controller which has a map on it. Over the map you can simply add custom search view and on typing/ taping search you can show search results using UITableview with some dropping animation keeping some max frame fixed, And finally on taping any result remove this UITableView and show location of map. If time permits I will create a sample for you, cant give assurance but will try. Mean while you can also go through Maps reference may be helpful