tableview

问题 I made a simple social media with new Firebase, and I successfully save string with database and image with storage, but when it comes to retrieve data back to the tableView the unusual things happen! all the images retrieve back randomly show up and continually shift, but other part shows perfectly or when I using return posts.count tableView shows no post. Hope someone can kindly give me some suggestion import UIKit import Firebase import FirebaseStorage class timelineTableViewController:

问题 I know there's tons of code out there to scroll a tableview to the top, but I want to do this when the top status bar is tapped, just like in Apple's native apps. Is this possible? 回答1: You get this for free, but you should check that the scrollsToTop attribute of your UITableView is YES. When this does NOT work is when you have a UIScrollView (or descendant class like UITextView) object embedded inside another UIScrollView class (like UITableView ). In this case, set scrollsToTop on the

问题 I want to show the image in the TableViewCell. There are the codes: func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { let cellIdentifier = "myCell" let cell = tableView.dequeueReusableCellWithIdentifier(cellIdentifier, forIndexPath: indexPath) as! DIYSquareALLCell cell.titles!.text = titles[indexPath.row] cell.leftImages!.image = getPic(leftImages[indexPath.row]) return cell } func getPic(PicURL: String) -> UIImage! { let image = self

问题 I am getting an error while running app with following exception. Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<FavoriteViewController 0x158d30> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key customCell.' *** Call stack at first throw: ( 0 CoreFoundation 0x314d0987 __exceptionPreprocess + 114 1 libobjc.A.dylib 0x319a149d objc_exception_throw + 24 2 CoreFoundation 0x314d0705 -[NSException dealloc] + 0 3 Foundation 0x31d28b4f

问题 I am getting an error while running app with following exception. Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<FavoriteViewController 0x158d30> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key customCell.' *** Call stack at first throw: ( 0 CoreFoundation 0x314d0987 __exceptionPreprocess + 114 1 libobjc.A.dylib 0x319a149d objc_exception_throw + 24 2 CoreFoundation 0x314d0705 -[NSException dealloc] + 0 3 Foundation 0x31d28b4f

问题 I have an array of tuples that is created from a JSON. typealias TagAndLocation = (tag: String, location: String) var resultTuples = [TagAndLocation]() for (_, subJSON) in json { let Tag = subJSON["Tag"].string! let Location = subJSON["Location"].string! let tagloc = (tag: Tag, location: Location) resultTuples.append(tagloc) } Then I'll use func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { let cell = UITableViewCell(style:

问题 I am currently trying to filter data in my TableView using FilteredList with predicate . I have 2 ComboBoxes to filter the values. My table contains Result . Each Result has a Student , that Student has a Classroom he belongs in. Those are the values I want to filter them by. I have no issues when I filter data using only 1 ComboBox . However, I don't know how to filter it based on both at the same time. The only real solution I could come up with would be a lot of if statements in both

问题 Did a search and the only thing I can find on here are for dynamic cell heights. I'm new to swift, and I'd like to have a tableview where the height of the tableview adjusts according to the number of rows. Thanks in advance for the help. 回答1: I can't think of a good reason to do this but... You must know how many items are in the tableview since it's your datasource (presumably whatever number you're returning in collectionView:numberOfItemsInSection . So you could adjust the size like so:

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . I have an viewController, which has a property: UIScrollView , and same controller contains a tableView. My UIScrollView contains buttons. How can i use [tableView reloadData] from touching some of this buttons? tableView data source and delegate is on viewController. MyViewController: @property (strong,

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . I have an viewController, which has a property: UIScrollView , and same controller contains a tableView. My UIScrollView contains buttons. How can i use [tableView reloadData] from touching some of this buttons? tableView data source and delegate is on viewController. MyViewController: @property (strong,