I am calling the following function to successfully hide my search bar in viewDidLoad:
- (void)hideSearchBar {
CGRect newBounds = self.tableView.bounds;
newBounds.origin.y = newBounds.origin.y + _searchBar.bounds.size.height;
self.tableView.bounds = newBounds;
}
but if I call the exact same function in (void)searchBarTextDidEndEditing:(UISearchBar *)searchBar the top row of my table view becomes overlapped with the navigation bar. Why is this overlap only happening when calling the hide function from searchBarTextDidEndEditing?
An answer from this question helped me realize this is somehow related to the nav bar being translucent. When I set the nav bar translucent to NO I had the issue. When I stopped making it NO, it works fine.
Related
I have a hidden searchBar in a tableView header:
- (void)viewWillAppear:(BOOL)animated {
CGRect newBounds = self.tableView.bounds;
newBounds.origin.y = newBounds.origin.y + self.searchBar.bounds.size.height;
self.tableView.bounds = newBounds;
}
I also have a magnifying-glass icon button that reveals the search bar:
- (IBAction)showSearchBar:(id)sender {
[self.searchDisplayController setActive:YES animated:YES];
[self performSelector:#selector(showKeyboard) withObject:nil afterDelay:0.1];
}
Problem is, when I pull down the table (to reload data) - it also shows the search bar.
I only want the searchBar to become visible when the magnifying-glass icon gets tapped.
I am not really sure, how to address this problem?
Am I hiding it the wrong way in the first place?
Thanks,
Added a screenshot to make my question more clear:
searchbar appears when pulling down
I don't tried that out, but I can image that you just have to hide it. for example:
[[self.searchDisplayController view] setHidden:YES]
I have a UITableViewController with a UISearchBar and UISearchDisplayController. That exists inside a Container View in a UIViewController which is in a UINavigationController. I made this image to help describe the structure:
This is what it really looks like:
When I tap the Search Bar, I have to hide the Nav Bar. Normally, this would happen on its own, but since my UITableViewController is inside a Container View, I have to handle that change myself. This is what it looks like then, note that the Status Bar is white because the Nav Bar is white, even though it is Hidden at the moment.
Once I start typing in some search text, the results show up. If I scroll those results upward, they pass underneath the Search Bar, but they overlap the Status bar which is very unattractive.
If the Container View isn't involved, then this all works as intended and the table content passes underneath the Status Bar, but with the ContainerView involved, the table text and status bar collide.
How do I get the text to travel under the Status Bar like normal?
I have search this for hours and my final result was to put this line in viewDidLoad:
self.extendedLayoutIncludesOpaqueBars = YES;
Problem solved :)
Try setting the definesPresentationContext in viewDidLoad of your TableViewController
Swift
override func viewDidLoad() {
super.viewDidLoad()
definesPresentationContext = true
}
Objective-C
- (void)viewDidLoad {
[super viewDidLoad];
self.definesPresentationContext = YES;
}
Here's what worked for me:
DO:
Use UISearchController (not a separately placed UISearchBar)
Place your VC in a UINavigationController if it isn't already. Set the nav not to "Show Navigation Bar" if desired.
Use autolayout for the UITableView (not springs and struts) and pin the top of the table to the top of the VC's view.
Add this delegate method:
- (UIBarPosition)positionForBar:(id<UIBarPositioning>)bar {
return UIBarPositionTopAttached;
}
DON'T:
Fiddle with edgesForExtendedLayout
Fiddle with extendedLayoutIncludesOpaqueBars
Fiddle with the table's contentInset
Basically this is due to the traslucency of the nav bar, usually the view controller fix that overlapping, by correcting the top insets of the owned view or subview if they are(or inherits) from UIScrollView. You have 2 options, one is to set the traslucency of the navbar to no, the other is set the edgeForExtendedLayout to none ore leave only bottom.
- (void)searchDisplayControllerWillBeginSearch:(UISearchDisplayController *)controller {
self.navigationController.navigationBar.translucent = YES;
}
- (void)searchDisplayControllerDidEndSearch:(UISearchDisplayController *)controller {
self.navigationController.navigationBar.translucent = NO;
}
These advices works only on iOS7, if you are deploying on lower target check before settings those properties.
Another way around, but I didn't tested could be read the --topLayoutGuide length and in the -searchDisplayControllerWillBeginSearch try to set a topInsets of the same length. In this way you should still preserve the translucency.
I have UISearchBar and UISearchDisplayController.
In viewdidload:
self.edgesForExtendedLayout = UIRectEdgeNone;
[searchDisplayController.searchBar setBackgroundImage:[self imageWithColor:ETSBaseColor] forBarPosition:0 barMetrics:UIBarMetricsDefault];
method that obtain image from UIColor:
- (UIImage *)imageWithColor:(UIColor *)color
{
CGRect rect = CGRectMake(0.0f, 0.0f, 1.0f, 1.0f);
UIGraphicsBeginImageContext(rect.size);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [color CGColor]);
CGContextFillRect(context, rect);
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return image;
}
I had the same problem:
- (void)searchDisplayControllerWillBeginSearch:(UISearchDisplayController *)controller
{
controller.searchBar.searchBarStyle = UISearchBarStyleDefault; // Used to cover UIStatusBar
}
- (void)searchDisplayControllerWillEndSearch:(UISearchDisplayController *)controller
{
controller.searchBar.searchBarStyle = UISearchBarStyleMinimal; // Used not to show top and bottom separator lines
}
In my case I don't want to hide the UINavigationBar but I had similar problems with gapes and other side effects. One of them was a missing UISearchBar after switching between UIViewControllers while the UISearchDisplayController is visible (I'm using SWRevealViewController to switch between UIViewController). This problem occurs only on iPads. It came out that the UISearchBar suddenly hides behind the UINavigationBar. Now I solved all my Problems with the following lines of code in the UITableViewController which is presented in a UIContainerView:
- (UINavigationController *)navigationController {
return nil;
}
Those lines prevent the UISearchDisplayController to reach and change my UINavigationController. I also subclassed this method into "MyContainerTableViewController" class and use this class now for all embedded UITableViewController.
I'm still using UISearchDisplayController to Support iOS 7.
The following hack worked for me:
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
return (self.searchController.isActive && section == 0) ? 22.0f : 0.0f;
}
I want to use a search bar button in a navigation bar to show a search bar just like Apple do in the Calendar app. The cancel button would dismiss the search bar and return the navigation bar to its former state, bar buttons, title, etc.
Using the iOS 7 property:
self.searchDisplayController.displaysSearchBarInNavigationBar = YES;
puts the search bar into the navigation bar just fine. My problem is trying to have it appear conditionally on the press of a bar button. I've tried firing this line from my button's action but no go. I've tried setActive:Animated: on the searchDisplayController
self.searchDisplayController.active = YES;
but no luck either. Any ideas or help would be appreciated.
I'm not sure if you notice, but on the Apple's calendar app when you press the search icon, it open a new UITableView with search bar. If this is what you want to do, you will have a create a UIViewController with a UITableView and a UISearchBar which inside that tableView you will be filtering the content.
If I was you, I will just hide the UISearchBar and call it whenever is needed with the button to show up.
This might work as well. Just give it a try and let me know:
In your viewWillAppear:
- (void)viewWillAppear:(BOOL)animated {
// scroll search bar out of sight
CGRect newBounds = self.tableView.bounds;
if (self.tableView.bounds.origin.y < 44) {
newBounds.origin.y = newBounds.origin.y + self.searchBar.bounds.size.height;
self.tableView.bounds = newBounds;
}
// new for iOS 7
[self.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForItem:0 inSection:0] atScrollPosition:0 animated:YES];}
Now that is hidden, call this to hide it again when the search is done:
- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar {
[self viewWillAppear:YES];
}
and to show the searchBar with a button, then:
- (IBAction)displaySearchBar:(id)sender {
// makes the search bar visible
[self.searchBar becomeFirstResponder];
}
In iOS 8 you can simply present a UISearchController and you will get the same animation as Calendar.app. Check out Apple's UICatalog sample code for an example.
I am building an iOS 7-only app. I am trying to set a UISearchDisplayController into the navigation bar.
I have it set up like this: In the storyboard, I added a "Search Bar and Search Display Controller" to my view controller's view, and set it at (0,0) relative to the top layout guide. I set constraints to pin to left, top and right. (I played with the constraints, i removed them completely, it doesn't matter) On top of that I have my Table view. When I added the search bar to the view in the storyboard, it automatically setup outlets for searchDisplayController and searchBar delegate. In code I have self.searchDisplayController.displaysSearchBarInNavigationBar = YES; I have two problems:
1) Without any buttons showing for the search bar (Interface builder -> select search bar -> Options: none selected) the search bar is in the middle of the screen:
If I click on the navigation bar, it starts editing the search bar:
notice also that the dark overlay appears to be offset from the navigation bar. It seems to me that the space is the same height as the navigation bar. Like it has been shifted down by that much. Also, when it displays the search results, the top of the content view is shifted down by the same amount (more pictures follow), which brings me to the second problem.
2) I messed around with it for a while and decided to check the option to have it show the cancel button. Now I have the search bar embedded in the nav bar correctly, but the overlay is still shifted down:
Again, when the search results table view appears, it is shifted down by the same amount (notice the scroll bar on the right side):
Even more bizarrely, I set a border on the search display controller's tableview layer, and it appears correct:
I have never used the UISearchDisplayController before and I unfamiliar with how to set it up, but functionally it works fine. I have read some other similar posts but the only advice is to hack it up by adjusting frames and setting manual offsets. I'd prefer to know what is causing this, is it a bug? Something I'm doing wrong? If it's a bug I can wait for a fix. It seems like such a basic thing that a thousand people must have done without any problem so I feel like I'm not setting it up correctly somehow. Thanks for you input.
I remember running into the same exact problem that you are observing.There could be a couple of solutions you can try.
If you are using storyboards
You should click on the view controller or TableView Controller which you have set up for your tableview and go to its attribute inspector and look under ViewController section and set the Extend Edges section to be under Top Bars.
If you are not using storyboards you can manually set the settings using the viewcontrollers edgesForExtendedLayout property and that should do the trick. I was using storyboards.
In my case, using storyboards, I had to check both Under Top Bars and Under Opaque Bars and leave Under Bottom Bars unchecked.
In my case, I actually had to uncheck all the Extended Edges boxes (essentially the same as programmatically setting Extended Edges to UIRectEdgeNone I believe) in my Storyboard in order to stop my search bar from offsetting itself. Thank you guys!
definesPresentationContext = true
override func viewDidLoad() {
super.viewDidLoad()
searchController = UISearchController(searchResultsController: nil)
searchController.searchResultsUpdater = self
searchController.hidesNavigationBarDuringPresentation = false
searchController.dimsBackgroundDuringPresentation = true
searchController.searchBar.searchBarStyle = UISearchBarStyle.Prominent
self.tableView.tableHeaderView = searchController.searchBar
definesPresentationContext = true
or see UISearchBar presented by UISearchController in table header view animates too far when active
My problem was just Adjust scroll view inserts. After change to false I didn't have problem
I had a same problem. And I solve this issue with adding view object under the tableview.
Add new ViewController on the Storyboard
Drag TableView to the new VC
Drag Table Cell to the TableView
Make a Connection for TableView DataSource, TableView Delegate to the new VC
I had very similar behavior happening. For me, the solution was to uncheck Extend Edges Under Top Bar in the storyboard settings for the parent view controller (I've turned off transparent navbars, not sure if that effects anything). If you're not using storyboard, you have to set [UIViewController edgesForExtendedLayout].
From the Apple docs:
This property is only applied to view controllers that are embedded in containers, such as UINavigationController or UITabBarController. View controllers set as the root view controller do not react to this property. Default value is UIRectEdgeAll.
Unfortunately none of the above solutions worked for me, I'm using a UITableViewController.
This link helped:
http://petersteinberger.com/blog/2013/fixing-uisearchdisplaycontroller-on-ios-7/
I put the code below for convenience:
static UIView *PSPDFViewWithSuffix(UIView *view, NSString *classNameSuffix) {
if (!view || classNameSuffix.length == 0) return nil;
UIView *theView = nil;
for (__unsafe_unretained UIView *subview in view.subviews) {
if ([NSStringFromClass(subview.class) hasSuffix:classNameSuffix]) {
return subview;
}else {
if ((theView = PSPDFViewWithSuffix(subview, classNameSuffix))) break;
}
}
return theView;
}
- (void)correctSearchDisplayFrames {
// Update search bar frame.
CGRect superviewFrame = self.searchDisplayController.searchBar.superview.frame;
superviewFrame.origin.y = 0.f;
self.searchDisplayController.searchBar.superview.frame = superviewFrame;
// Strech dimming view.
UIView *dimmingView = PSPDFViewWithSuffix(self.view, #"DimmingView");
if (dimmingView) {
CGRect dimmingFrame = dimmingView.superview.frame;
dimmingFrame.origin.y = self.searchDisplayController.searchBar.frame.size.height;
dimmingFrame.size.height = self.view.frame.size.height - dimmingFrame.origin.y;
dimmingView.superview.frame = dimmingFrame;
}
}
- (void)setAllViewsExceptSearchHidden:(BOOL)hidden animated:(BOOL)animated {
[UIView animateWithDuration:animated ? 0.25f : 0.f animations:^{
for (UIView *view in self.tableView.subviews) {
if (view != self.searchDisplayController.searchResultsTableView &&
view != self.searchDisplayController.searchBar) {
view.alpha = hidden ? 0.f : 1.f;
}
}
}];
}
// This fixes UISearchBarController on iOS 7. rdar://14800556
- (void)correctFramesForSearchDisplayControllerBeginSearch:(BOOL)beginSearch {
if (PSPDFIsUIKitFlatMode()) {
[self.navigationController setNavigationBarHidden:beginSearch animated:YES];
dispatch_async(dispatch_get_main_queue(), ^{
[self correctSearchDisplayFrames];
});
[self setAllViewsExceptSearchHidden:beginSearch animated:YES];
[UIView animateWithDuration:0.25f animations:^{
self.searchDisplayController.searchResultsTableView.alpha = beginSearch ? 1.f : 0.f;
}];
}
}
- (void)searchDisplayControllerWillBeginSearch:(UISearchDisplayController *)controller {
[self correctFramesForSearchDisplayControllerBeginSearch:YES];
}
- (void)searchDisplayControllerDidBeginSearch:(UISearchDisplayController *)controller {
[self correctSearchDisplayFrames];
}
- (void)searchDisplayControllerWillEndSearch:(UISearchDisplayController *)controller {
[self correctFramesForSearchDisplayControllerBeginSearch:NO];
}
- (void)searchDisplayController:(UISearchDisplayController *)controller didShowSearchResultsTableView:(UITableView *)tableView {
// HACK: iOS 7 requires a cruel workaround to show the search table view.
if (PSPDFIsUIKitFlatMode()) {
controller.searchResultsTableView.contentInset = UIEdgeInsetsMake(self.searchDisplayController.searchBar.frame.size.height, 0.f, 0.f, 0.f);
}
}
Go to storyboard.
Click on the view controller.
Go to attribute inspector under the ViewController section.
Set the Extend Edges section to be Under Top Bars and Under Opaque Bars.
Make sure to un-check Under Bottom Bars.
I am trying to hide the statusbar but maintain the "bigger" navigationbar height. Right now when I hide the statusbar by setting - (BOOL)prefersStatusBarHidden to YES and then calling [self setNeedsStatusBarAppearanceUpdate];. The problem with this is that the navigationbar will slide up and won't leave space for the notification I'm trying to show. Simply adding a view over the statusbar is not an option, our statusbar/navigation has the fancy blur effect. Does anyone have a clue how to maintain the standard navigationbar height with the status bar height and remove the statusbar from that?
Edit; what I ended up doing is taking a risk and getting the UIWindow of the statusbar via a private API and offsetting that.
Edit 2; App got approved with the private API. Be cautious though!
You can create a custom UIView with its frame as
customView.frame=CGRectMake(0, 20, self.view.frame.size.width, self.view.frame.size.height);
Also hide your status bar by following the below steps
Go to info.plist and add two attributes if not present. set "Status bar is initially hidden" to YES and set UIViewControllerBasedStatusBarAppearance to NO. This will hide status bar for your app.
Add this code in your view Controller:
if ([self respondsToSelector:#selector(setEdgesForExtendedLayout:)])
{
self.edgesForExtendedLayout = UIRectEdgeNone;
}
You should use of positionForBar: method of UIBarPositioningDelegate Protocol.
I don't want to put another answer or copy/past so you should take closer look at following question\answers. :)
iOS 7 Status Bar Collides With NavigationBar
iOS 7 UIToolBar Overriding With Status Bar
statusbar overlapping content in iOS7
I had to do this once. I ended up creating a custom navigationBar of my own and then just set the frame as:
navBar.frame=CGRectMake(0, 20, self.view.frame.size.width, self.view.frame.size.height);
It worked for me at the time. Just try it out.
Another workaround here: subclass UINavigationController override method:
- (void)viewWillLayoutSubviews
{
[super viewWillLayoutSubviews];
if (self.navigationBar.frameMinY < 1) {
self.navigationBar.frameHeight = 64;
} else {
self.navigationBar.frameHeight = 44;
}
}
in which set frameMinY is set frame.origin.y and set frameHeight is set frame.size.height