I got ViewController and UITableViewController in it. In top of my VC I got Search bar. I need to connect Search bar with my tableView.
#interface MessageViewController : UIViewController <UITableViewDataSource, UITableViewDelegate, UISearchBarDelegate, UISearchDisplayDelegate>
//.m
self.searchDisplayController.searchBar.delegate = self;
self.searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, 270, kRowHeight)];
self.searchBar.delegate = self;
self.searchBar.backgroundColor = [UIColor colorWithWhite:0.9 alpha:0.7];
self.searchBar.barStyle = UISearchBarStyleDefault;
[self.view addSubview:self.searchBar];
#pragma mark - UISearchDisplayController Delegate Methods
- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString
{
[self doSearch];
return YES;
}
Why I not get updated tableView?
After performing the search try to invoke [self.tableView reloadData];, at the bottom of your doSearch method to reload the content of your tableView.
Related
The behaviour different between automatic presentation UISearchController and present the search controller myself.
#implementation MyViewComtroller
// click search barbutton on right of navigationBar
- (void)searchAction:(id)sender {
ArticleSearchViewController *searchResultsController = [[ArticleSearchViewController alloc] init];
UISearchController *searchController = [[UISearchController alloc] initWithSearchResultsController:searchResultsController];
searchController.searchResultsUpdater = searchResultsController;
searchController.searchBar.delegate = searchResultsController;
searchController.delegate = searchResultsController;
searchController.hidesNavigationBarDuringPresentation = NO;
[self presentViewController:searchController animated:YES completion:nil];
}
#end
#implementation ArticleSearchViewController
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:YES];
ArticleDetailController * articleDetailController = [ArticleDetailController new];
[(UINavigationController *)self.presentingViewController pushViewController:articleDetailController animated:YES];
}
#end
The push action happend below UISearchController.
You are presenting the search controller in wrong way. Look at part of the documentation.
You use a search controller in tandem with your existing view
controllers. When you have a view controller with searchable content,
incorporate the search bar of a UISearchController object into your
view controller’s interface. When the user interacts with that search
bar, the search controller automatically displays a new view
controller with the search results that you specify.
Instead of this in your main controller:
[self presentViewController:searchController animated:YES completion:nil];
You should do this on iOS 11:
self.definesPresentationContext = YES;
self.navigationItem.searchController = searchController;
Or this on pre iOS 11:
self.definesPresentationContext = YES;
self.navigationItem.titleView = searchController.searchBar;
Or place anywhere else the searchController.searchBar in your presented view hierarchy.
You should also setup the search controller in a place like viewDidLoad and not on a button press.
And the way you are getting a reference to your navigationController in ArticleSearchViewController has to be updated to something like:
[self.presentingViewController.navigationController pushViewController:articleDetailController animated:YES];
View controller with searchable content:
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self.view setBackgroundColor:[UIColor blackColor]];
UIStoryboard *sb = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
ArticleSearchViewController *searchResultsController = [sb instantiateViewControllerWithIdentifier:#"ArticleSearchViewController"];
UISearchController *searchController = [[UISearchController alloc] initWithSearchResultsController:searchResultsController];
searchController.searchResultsUpdater = searchResultsController;
searchController.searchBar.delegate = searchResultsController;
searchController.delegate = searchResultsController;
searchController.hidesNavigationBarDuringPresentation = NO;
// [self presentViewController:searchController animated:YES completion:nil]; //WRONG
self.definesPresentationContext = YES;
self.navigationItem.searchController = searchController;
}
#end
Results Controller:
#implementation ArticleSearchViewController
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:YES];
UIViewController * articleDetailController = [UIViewController new];
[self.presentingViewController.navigationController pushViewController:articleDetailController animated:YES];
}
- (void)updateSearchResultsForSearchController:(UISearchController *)searchController {
// update appropriately
}
#end
This is a better answer:
definesPresentationContext = true
just write this in your MyViewController
UITableView is not visible on the UIViewController Class.
On Storyboard added a new UIViewController set to related SlideViewcontroller class to it, Add a new UITableView (tbl_Slide), set the datasource and delegate to UIViewController in storyboard for the added UITableView.
And also included the related datasource and delegate methods to the UIViewController class.
- (void)viewDidLoad {
[super viewDidLoad];
self.tbl_SlideMenu = [[UITableView alloc]
initWithFrame:CGRectMake(0, 80, self.view.frame.size.width, self.view.frame.size.height) style:UITableViewStylePlain];
self.tbl_SlideMenu.tableFooterView = [[UIView alloc] initWithFrame:CGRectZero];
self.tbl_SlideMenu.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
self.tbl_SlideMenu.separatorColor = [UIColor lightGrayColor];
self.tbl_SlideMenu.dataSource=self;
self.tbl_SlideMenu.delegate=self;
[self.view addSubview:self.tbl_SlideMenu];
}
Since added the UITableView to the UIViewController for UIView, need not to induced above two lines of code
self.tbl_SlideMenu = [[UITableView alloc]
initWithFrame:CGRectMake(0, 80, self.view.frame.size.width,self.view.frame.size.height) style:UITableViewStylePlain];
[self.view addSubview:self.tbl_SlideMenu];
Once I included the allocation and added to subview its showing the data with tableview.
Once I removed allocation and frame added to subview is not visible.
So what is need of storyboard where I added UITableView to UIViewController for UIView (view default.) once Component added to storyboard and framed need not to allocate and frame in code.
Advance Thanks
Hope for best posible answers
If u added the tableview in storyboard there is no need to initialise the view components in the code in this case u don't need below lines as u mentioned
self.tbl_SlideMenu = [[UITableView alloc]
initWithFrame:CGRectMake(0, 80, self.view.frame.size.width,self.view.frame.size.height) style:UITableViewStylePlain];
however u need to create a outlet for your tableview to access the tableview in code that means as soon as view is loaded all your view components are initialised in your case tableview is initialised and u can ready to use it and also u don't need below lines of code if u set datasource and delegate in storyboard
self.tbl_SlideMenu.dataSource=self;
self.tbl_SlideMenu.delegate=self;
since u configured your tableview datasource and delegate and also added tableview to view controller's view there is no need of below line also
[self.view addSubview:self.tbl_SlideMenu];
and second way is as u mentioned creating the view in pure code, in this case u have to do all things by your self from initialising to adding the view component to controller's view as u mentioned like below
self.tbl_SlideMenu = [[UITableView alloc]
initWithFrame:CGRectMake(0, 80, self.view.frame.size.width, self.view.frame.size.height) style:UITableViewStylePlain]; //creating the tableview
self.tbl_SlideMenu.tableFooterView = [[UIView alloc] initWithFrame:CGRectZero];
self.tbl_SlideMenu.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth; //configuring the view
self.tbl_SlideMenu.separatorColor = [UIColor lightGrayColor];
self.tbl_SlideMenu.dataSource=self; //setting the datasource and delegate
self.tbl_SlideMenu.delegate=self;
[self.view addSubview:self.tbl_SlideMenu]; //adding it to tableview
hope u get this
Edit
it is working fine for me, i crossed checked it with some dummy values, for example as i mentioned , dragged and dropped a tableview, set its datasource and delegate to View Controller in storyboard and connected a outlet in ViewController.h file, like below,
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController <UITableViewDataSource,UITableViewDelegate>
#property (weak, nonatomic) IBOutlet UITableView *tbl_SlideMenu;
#end
and in ViewController.m file
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.tbl_SlideMenu.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
self.tbl_SlideMenu.separatorColor = [UIColor lightGrayColor];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 5;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"CELL"];
if(cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"CELL"];
}
cell.textLabel.text = #"Hello";
return cell;
}
#end
and i got output showing the tableview with 5 "Hello" on each row
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'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.
The purpose is to implement a fixed search bar just like Contacts in iOS7.
I have a view controller called SearchViewController inherited from UIViewController.
And I add a searchBar and a tableView as its navigationController.view's subView.
But since searchBar and tableView are separated, when I start to search, no dim effect on tableView and result table view is shown in correctly.
I just want it behaves just like Contacts app.
Here is my code:
SearchViewController.h
#import <UIKit/UIKit.h>
#class UWTabBarController;
#class InfoSessionModel;
#interface SearchViewController : UIViewController <UITableViewDataSource, UITableViewDelegate, UISearchBarDelegate, UISearchDisplayDelegate>
SearchViewController.m
#import "SearchViewController.h"
#interface SearchViewController ()
#property (nonatomic, strong) UISearchBar *searchBar;
#property (nonatomic, strong) UISearchDisplayController *searchController;
#property (nonatomic, strong) UITableView *tableView;
#property (nonatomic, strong) NSArray *data;
#end
#implementation SearchViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// initiate search bar
NSInteger statusBarHeight = 20;
NSInteger navigationBarHeight = self.navigationController.navigationBar.frame.size.height;
_searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, statusBarHeight + navigationBarHeight, 320, 44)];
// _searchBar.tintColor = [UIColor clearColor];
_searchBar.delegate = self;
_searchBar.barStyle = UIBarStyleDefault;
//NSMutableArray *scopeTitles = [[NSMutableArray alloc] initWithObjects:#"Employer", #"Program", #"Note", nil];
_searchBar.scopeButtonTitles = [[NSArray alloc] initWithObjects:#"Employer", #"Program", #"Note", nil];//[#"Employer|Program|Note" componentsSeparatedByString:#"|"];
// initiate search bar controller
_searchController = [[UISearchDisplayController alloc] initWithSearchBar:_searchBar contentsController:self];
_searchController.delegate = self;
_searchController.searchResultsDataSource = self;
_searchController.searchResultsDelegate = self;
// initiate table view
_tableView = [[UITableView alloc]initWithFrame:CGRectMake(0, statusBarHeight + navigationBarHeight, 320, [UIScreen mainScreen].bounds.size.height - statusBarHeight - navigationBarHeight)];
[_tableView setContentInset:UIEdgeInsetsMake(_searchBar.frame.size.height, 0, _tabBarController.tabBar.frame.size.height, 0)];
_tableView.delegate = self;
_tableView.dataSource = self;
[_tableView registerClass:[InfoSessionCell class] forCellReuseIdentifier:#"InfoSessionCell"];
[_tableView registerClass:[LoadingCell class] forCellReuseIdentifier:#"LoadingCell"];
[self.navigationController.view addSubview:_tableView];
[self.navigationController.view addSubview:_searchBar];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if (_searchController.searchResultsTableView == tableView) {
return 1;
}
else {
return [data count];
}
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
if (_searchController.searchResultsTableView == tableView) {
static NSString *cellIdentifier = #"LoadingCell";
LoadingCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil) {
cell = [[LoadingCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
}
cell.loadingLabel.text = #"Test cell for search result";
return cell;
}
else {
//... configure cell and return cell
return cell;
}
}
}
#pragma mark - UISearchDisplayController Delegate Methods
// hasn't been implemented
#pragma mark - UISearchBar Delegate Methods
- (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar {
//move the search bar up to the correct location
[UIView animateWithDuration:.3
animations:^{
searchBar.frame = CGRectMake(searchBar.frame.origin.x,
20,// status bar's height
searchBar.frame.size.width,
searchBar.frame.size.height);
}
completion:^(BOOL finished){
//whatever else you may need to do
}];
return YES;
}
- (BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar {
//move the search bar down to the correct location
[UIView animateWithDuration:.25
animations:^{
NSInteger statusBarHeight = 20;
NSInteger navigationBarHeight = self.navigationController.navigationBar.frame.size.height;
searchBar.frame = CGRectMake(_searchBar.frame.origin.x,
statusBarHeight + navigationBarHeight,
_searchBar.frame.size.width,
_searchBar.frame.size.height);
}
completion:^(BOOL finished){
//whatever else you may need to do
}];
return YES;
}
This is the effects of my code:
All right, my problem is caused by my misunderstanding of views and navigationController's views.
In view did load method:
before is:
[self.navigationController.view addSubview:_tableView];
[self.navigationController.view addSubview:_searchBar];
but should be:
[self.view addSubview:_tableView];
[self.view addSubview:_searchBar];
In this way, the original table view and result table view will show correctly.
And other things are moving search bar up and down, these things should be done through UISearchBar delegate protocol methods and UISearchDisplayController delegate protocol methods.
This is a right way to implement a fixed searchBar and tableView bellow it.