I have a UITableViewController and I want a UISearchBar on the top so I use
viewForHeaderInSection: delegate method because when I scroll I don't want to hide the UISearchBar. The problem is (only iOS7) that when I press cancel button the UISearchBar disappears.
here is some code:
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:UITableViewStylePlain];
if (self) {
// Custom initialization
self.filteredListContent = [[NSMutableArray alloc] init];
mySearchBar = [[UISearchBar alloc] init];
mySearchBar.delegate = self;
[mySearchBar setAutocapitalizationType:UITextAutocapitalizationTypeNone];
[mySearchBar sizeToFit];
searchDisplayController = [[UISearchDisplayController alloc]initWithSearchBar:mySearchBar contentsController:self];
[searchDisplayController setDelegate:self];
[self setSearchDisplayController:searchDisplayController];
[searchDisplayController setSearchResultsDataSource:self];
self.tableView.scrollEnabled = YES;
}
return self;
}
Then I return mySearchBar on viewForHeaderInSection: delegate method.
What's wrong with that?
Related
I am trying to implement a UISearchController in a TableViewController. After i enter the text in the search bar I am getting the count in the console of how many records to display but the tableview is not getting reloaded. Please find the code for the Update Search Results Controller.
- (void)viewDidLoad {
[super viewDidLoad];
self.searchController = [[UISearchController alloc] initWithSearchResultsController:nil];
self.searchController.searchResultsUpdater = self;
self.searchController.dimsBackgroundDuringPresentation = NO;
self.searchController.searchBar.delegate = self;
self.tableView.tableHeaderView = self.searchController.searchBar;
self.definesPresentationContext = YES;
_db=[[Database alloc]init];
if(_vehicles==nil){
_vehicles=[[NSMutableArray alloc]init];
}
_vehicles=[_db getTheData:nil];
NSLog(#"%lu",(unsigned long)_vehicles.count);
}
- (void)updateSearchResultsForSearchController:(UISearchController *)searchController
{
NSString *searchText = searchController.searchBar.text;
NSMutableArray<Vehicle*> *searchResults = [[NSMutableArray<Vehicle*> alloc]init];
for(Vehicle *v in self.vehicles){
if([v.make containsString:searchText]){
[searchResults addObject:v];
}
}
NSLog(#"%lu",searchResults.count);
VehicleTableViewController *tableController = (VehicleTableViewController *)self.searchController.searchResultsController;
tableController.vehicles = searchResults;
[tableController.tableView reloadData];
}
VehicleTableViewController *tableController = (VehicleTableViewController *)self.searchController.searchResultsController;
This line is wrong I think. searchResultsController is not tableviewctrler. You cannot force it to be one. You already have tableView reference so use that.
[self.tableView reloadData];
Make sure you replace the Table datasource with the searchresult before reloading the table.
[dataSourceArr removeAllObjects];
[dataSourceArr = [NSMutableArray arrayWithArray: searchResults];
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];
}
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;
}
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
I created a search bar at the header view of a table:
self.searchResults = [NSMutableArray arrayWithCapacity:[self.list count]];
self.searchController = [[UISearchController alloc] initWithSearchResultsController:nil];
self.searchController.searchResultsUpdater = self;
self.searchController.dimsBackgroundDuringPresentation = NO;
self.searchController.hidesNavigationBarDuringPresentation = NO;
self.searchController.searchBar.barTintColor = [UIColor clearColor];
self.searchController.searchBar.frame = CGRectMake(self.searchController.searchBar.frame.origin.x, self.searchController.searchBar.frame.origin.y, self.searchController.searchBar.frame.size.width, 44.0);
[[UIBarButtonItem appearanceWhenContainedIn: [UISearchBar class], nil] setTintColor:[UIColor whiteColor]];
[self.searchController.searchBar becomeFirstResponder];
And when tap a certain row in the tableview, a new view controller will be pushed.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:YES];
NSLog(#"HEY ROW %ld", indexPath.row+1);
ZLContainerViewController *controller = [[ZLContainerViewController alloc]init]; // a container for UIPage
[self.navigationController pushViewController:controller animated:YES];
}
However, after pushing the new view controller, the search bar is still there. How can I solve this problem?
Any suggestion is much appreciated!
Use the below code in viewDidLoad.
Swift:
self.definesPresentationContext = true
Objective-C:
self.definesPresentationContext = YES;
This solved the problem for me.
One of these two UISearchBarDelegate delegate methods should fix your problem
- (BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar {
return YES;
}
- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar {
[self.searchBar resignFirstResponder];
}
I'm having a UISearchbar in my navigationbar. When I search something the delegate:
-(BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString {
NSLog(#"Should reload");
[self filterContentForSearchText:searchString
scope:[[self.searchDisplayController.searchBar scopeButtonTitles]
objectAtIndex:[self.searchDisplayController.searchBar
selectedScopeButtonIndex]]];
return YES;
}
is called so It should reload my tableview. But it doesn't. I've got two results in my search array so that's not the problem.
My init in my UITableviewController is like this:
_searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
_searchBar.delegate = self;
_searchDisplayController = [[UISearchDisplayController alloc] initWithSearchBar:_searchBar contentsController:self];
_searchDisplayController.delegate = self;
_searchDisplayController.searchResultsDataSource = self;
_searchDisplayController.searchResultsTableView.delegate = self;
After I alloc init my UITableviewController I do this:
_poiTableView = [[POITableViewController alloc] init];
self.navigationItem.titleView = _poiTableView.searchBar;
so the searchbar is in my navigationbar and it calls searchdislaycontroller the only thing is that it doesn't reload my tableview. Before I moved the searchbar to the navigationbar, it was in the headercell of the tableview. Then it reloaded my tableview. I only moved the searchbar tot the navigationbar.
Implement the method searchBarShouldEndEditing: and there reload the tableview with [tableView reloadData];
Also, return YES at the end of the method since the return type is BOOL. Otherwise, it won't receive the end editing delegate calls.
I am using UISeachDisplayController with a UITableView. It is set up programatically in the viewDidLoad method for the UITableViewController:
- (void)viewDidLoad
{
[super viewDidLoad];
[self loadProjectsAndTitles];
searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, 600, 44)];
searchDisplayController = [[UISearchDisplayController alloc] initWithSearchBar:searchBar
contentsController:self];
searchDisplayController.delegate = self;
searchDisplayController.searchResultsDataSource = self;
searchDisplayController.searchResultsTableView.allowsSelection = TRUE;
self.tableView.tableHeaderView = searchBar;
}
Everything is working absolutely fine except that when I click on a row when the UISearchBar is being used, the - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath method is not being called although it is being called perfectly well when the UISearch is not being used. My question is is this normal behaviour or should the selection method work? If it should work are there any suggestions why it might not be working?
I think you forgot to set
searchDisplayController.searchResultsDelegate = self;
searchResultsDelegate is the delegate for the table view in which the search results are displayed, and didSelectRowAtIndexPath is one of the table view delegate methods.