uisearchbar | 易学教程

iphone; uisearchbar asynchronous requests, cancelling before sending a new one

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问题 Hi there guys I am looking to have a search bar in my application,where the user searches for cities and countries - the results come from an online API. So, when the user starts to type more than four characters, a search request is sent to the online API and country,city information is fetched. The problem here is; as the user is typing the calls are made, but any call before that has not ended yet - causing the application to feel sluggish... To reiterate The user types, lets' say "Sing" A

How to set the text color of the UISearchBar's placeholder

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I have a UISearchBar with a dark background color so I was trying to change the place holder text color of UISearchBar (which will be gray by default) but I didn't find a way to set it. So I thought of getting some help :) please suggest me how this can be achieved thanks in advance :) Note : At the time I wrote this answer I was working on iOS 7 & this workaround worked on iOS 8 as well. It may not work on iOS 9 . Ok it's been two days since I posted this question. Though I din't get the answer I got a workaround for this problem. Note : I am using storyboard for my application & I have

iOS, swift. How to make a floating search bar with drop down list like this?? (Image included)

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问题 Can I make this with standard iOS UIKit ? When I google for UISearchBar , all tutorials come with UITableView . Which is not what I want. I want this search bar to be floating on top of everything show drop down list of possible matching options when the user types 回答1: to make searchbar like this you want to insert Button in Navigation bar controller and set background image as search.png (your image). so, when user click on this button set target as searchbar will be open. please check

UISearchBar search two arrays

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I Have a search bar that searches an array, and updates a UITableView with the results. The table view is a list of books, with titles and authors: Right now, the search bar only searches the titles but I would like to make it search the authors as well. Here is the search code I have (I got it from http://blog.webscale.co.in/?p=228 ). - (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText { [tableData removeAllObjects];// remove all data that belongs to previous search if([searchText isEqualToString:@""]||searchText==nil){ [tableView reloadData]; return; } for

remove the border of uitextfield in uisearchbar

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问题 I wanna custom the UISearchBar control to a style as showed in the picture below: First I should remove the background view, then find out the UITextfiled in UISearchBar, extend the frame of UITextfiled and remove the boarder of it. Here is my code : UITextField *searchField; NSUInteger numViews = [self.subviews count]; for(int i = 0; i != numViews; i++) { if([[self.subviews objectAtIndex:i] isKindOfClass:[UITextField class]]) { //conform? searchField = [self.subviews objectAtIndex:i]; } } if

iOS Keyboard Active but Invisible when UISearchBar is tapped

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问题 I have an issue which performs exactly as depicted here. https://www.youtube.com/watch?v=Fup-WrgN3wA I am not the owner of this video and am unable to find any meaningful solutions to the issue depicted in it. Im my case: I have a UITableView with a UISearchBar in it. Tapping the UISearchBar makes it the firstResponder with a blinking cursor ready to accept keyboard inputs. However the Keyboard is invisible but still clickable. If I leave it in that state for 10-20 seconds, the keyboard

Replace BookmarkButton with Activityindicator in UISearchBar

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问题 I use a UISearchBar for entering an address to establish a network connection. While the connection is made I want to show the activity indicator instead of the tiny BookmarkButton on the right side of the searchbar. As far as I can see there is no public declared property that would give me access to the correct subview of the searchbar. I have seen this been done, any thoughts? 回答1: How about replacing the search icon on the left side with an activity indicator while searches or connections

Random UISearchDisplayController Crash (iOS 7)

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问题 I've been trying to fix a crash that around 50% of my users are having. The crash began after I implemented a UISearchDisplayController (ie. added a search bar to a table view), but I haven't been able to reproduce the crash, not even once. According to my users, they instantly crash (or freeze) when they open the table view that has the UISearchDisplayController. According to Crashlytics, the crash is happening at: -[UISearchDisplayController _updateTableHeaderBackgroundViewInTableView

Changing the size of UISearchBar

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Not being able to find the answer, and also not being able to do what I want with this: CGSize searchBarSize = self.searchDisplayController.searchBar.frame.size; searchBarSize.width = <someNumber>; I ask: is there a way to change the width of a UISearchBar? Thanks a lot. Just as a reference to anybody with the same problem: I created a view with the searchBar image (resized) as a button's background (the button was added as a subview to my view). Then I defined the view containing the button as the view for the table's header in my UiTableViewController. The button, when pressed, behaves like

Search a UISearchBar with no text in Xcode5 / iOS7

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问题 I'm updating my app for iOS 7 and one of my functions that allowed a search bar search button to be activated with no text in the search bar stopped working. I used the following code. ANy suggestions on how to make it work again? Thanks in advance. UITextField *searchBarTextField = nil; for (UIView *subview in self.searchBar.subviews) { if ([subview isKindOfClass:[UITextField class]]) { searchBarTextField = (UITextField *)subview; break; } } searchBarTextField.enablesReturnKeyAutomatically =