Get row from indexPath in RoboVM
objective-c,nsindexpath,robovm
I have no experience with RoboVM. However, indexPath.section and indexPath.row are just convenience methods/properties for [indexPath indexAtPosition:0] // section [indexPath indexAtPosition:1] // row and the indexAtPosition: method is defined in the Java class....
Xcode 6.3.2 Swift 1.2 NSIndexpath does not have member 'row'
You need to import UIKit. section, row and item are properties of NSIndexPath added by UIKit. https://developer.apple.com/library/prerelease/ios//documentation/UIKit/Reference/NSIndexPath_UIKitAdditions/index.html...
[__NSCFString name]: unrecognized selector sent to instance
ios,objective-c,uitableview,nsmutablearray,nsindexpath
The error message is saying you are trying to call name method on NSString. This means you have an athlete that is NSString instead of Athlete. You can check the object type in debugger or use NSLog("%@ - %@", [athlete class], athlete) to log it....
How to access text of a label in a UICollectionViewCell from a different method?
ios,swift,uicollectionviewcell,nsindexpath,textlabel
cellForItemAtIndexPath is called for each item when it is to be displayed. You are applying some sort of a "shuffle" on the array of string? So, not all strings will necessarily be used and a few will be have same text. You can simply have the variables 'definitions' and 'boats'...
uicollectionview scrolling change cell indexpath
ios,objective-c,uicollectionview,nsindexpath
You only configure the cell if it doesn't have the message UIView (tag 2) - so when cells are reused you are simply returning them as they were configured previously - however there is no guarantee that the cell be reused in the same indexPath as it was previously -...
How to “reset” next indexPath.row to become current indexPath.row?
ios,didselectrowatindexpath,nsindexpath
If you need to play the next track from your array, you need to keep track the current playing track and that index. You can do it like: - (IBAction)nextPressd:(id)sender { self.selectedTrackRow += 1; self.nextTrack = self.SPTrackList[self.selectedTrackRow]; [self playTrack:self.nextTrack]; } ...
NSIndexPath in Swift
What I don't understand how NSIndexPath works. For iOS, you can think of NSIndexPath as a read-only structure that contains two Int properties section and row if you're working with UITableViews or section and item if you're working with UICollectionViews. You create them with the NSIndexPath:forRow:inSection: factory method: let...
NSIndexPath for current tableview position
After a lot of playing around with this, I really wanted this to be a polished & fluid look, I've found a better solution as opposed to jn_pdx. Although his answer was resourceful and in the right direction, I did try it that way, and created CGRects for the sections...
Refresh certain row of UITableView based on Int in Swift
ios,uitableview,swift,nsindexpath
You can create an NSIndexPath using the row and section number then reload it like so: var indexPath = NSIndexPath(forRow: rowNumber, inSection: 0) self.tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Top) In this example, I've assumed that your table only has one section (i.e. 0) but you may change that value accordingly....
Center Cell UITableView When Scrolling Is Finished
ios,uitableview,swift,nsindexpath
You need to implement -scrollViewWillEndDragging:withVelocity:targetContentOffset: in your table view delegate, just as in this other question here. Basically, this method allows you to tweak the position where the velocity scroll will halt. I can't help you more with code without knowing the structure of your table view (cells of variable...
iOS - how do I specify the index path of every UICollectionViewCell?
ios,objective-c,uicollectionview,uicollectionviewcell,nsindexpath
There are many things wrong with your didSelectRow... method. The method has an indexPath parameter Your check to compare the index path is all wrong Use an array Try this: - (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath { NSString *segue = segues[indexPath.row]; [self performSegueWithIdentifier:segue sender:self]; } Add an instance variable for segues...
Selecting a cell shows a button and deselecting hides the button
ios,objective-c,uitableview,nsindexpath
From the docs about beginUpdates: Call this method if you want subsequent insertions, deletion, and selection operations (for example, cellForRowAtIndexPath: and indexPathsForVisibleRows) to be animated simultaneously. Although you've changed the isSelectedNow boolean, you haven't actually specified any insertion, deletion, or selection operations between beginUpdates and endUpdates. So you're not actually...
Swift: How to access NSIndexPath section value?
You are access the section value correctly. You are just print it the wrong way. section have type of NSInteger, which is Int in swift just change log to NSLog("Index Path Section %d", indexPath.section) It print (null) because the section value is 0. and crashed when it is 1 because...
iOS: How to pass index of row which is in section
You can create a subclass of UITableViewCell, and add two properties to it @property (nonatomic) NSInteger row; @property (nonatomic) NSInteger section; then in the cellForRowAtIndexPath: method you can set these values according to the index path. and once you want to pass the row§ion info just use delegation or KVO...
swift: how to get the indexpath.row when a button in a cell is tapped?
swift,button,touch,nsindexpath
giorashc almost had it with his answer, but there was one more line of code that was required. The correct answer would be: let button = sender as! UIButton let view = button.superview! let cell = view.superview as! <Your custom cell name here> let indexPath = itemTable.indexPathForCell(cell) This is because...
Exception when manually calling didSelectRowAtIndexPath
ios,objective-c,uitableview,nsindexpath
With UITableView you also need to specify the section of NSIndexPath NSIndexPath* indexPath = [NSIndexPath indexPathForRow:row inSection:section]; ...
Set dynamic Custom Cell from certain row
ios,uitableview,swift,parse.com,nsindexpath
That is happening because in your last bit you are always asking for row 0 section 0 in parse, you will need something like this: else { let commentCell:commentTableViewCell = tableView.dequeueReusableCellWithIdentifier("commentCell") as commentTableViewCell //indexPath.row is the actual row of the table, //so you will have for table row 2 parse...
Keep track of taps on a button?
ios,xcode,swift,uitableview,nsindexpath
You can create integer variable inside you view controller, and use it as a counter -> that is, when user taps increment it and if you have enough taps perform a segue or anything else. For instance: var tapCounter = 0 as a declaration in your view controller. func tapGestureForElement(gest:UIGestureRecognizer){...
Creating a button to scroll UICollectionView
ios,objective-c,uicollectionview,nsindexpath
The indexPathsForSelectedItems method name has an extra s in it, Paths not Path, which indicates that it returns an NSArray of index paths, not a single index path. Hence the solution is to change these lines NSIndexPath *indexPath = [self.collectionView indexPathsForSelectedItems]; NSIndexPath* newIndexPath = [NSIndexPath indexPathForRow:indexPath.row+1 inSection:indexPath.section]; to this NSIndexPath...
How to get index number from within tableView: cellForRowAtIndexPath: using `indexPath` argument?
ios,uitableview,swift,nsindexpath
Try indexPath.row or, if you are using sections too, try indexPath.section in addition. :)
Use a functional technique to discover an NSIndexPath
swift,functional-programming,nsindexpath
A possible solution (written in Swift 2): let indexPaths = categories?.enumerate().flatMap() { (section, aCategory) in aCategory.videos.enumerate().filter() { (_, aVideo) in aVideo == video }.map { (row, _) in NSIndexPath(forRow: row, inSection: section) } } ?? [] indexPaths is an array of all matching index paths (or an empty array). If...
tableView.cellForRowAtIndexPath(indexPath) return nil
As stated in the documentation, cellForRowAtIndexPath returns: An object representing a cell of the table, or nil if the cell is not visible or indexPath is out of range. Hence, unless your table is fully displayed, there are some off screen rows for which that method returns nil. The reason...
getting index on NSIndexPath on UICollectionView
ios,xcode,uicollectionview,nsindexpath
Use (indexpath.section*yourTotalColumn)+indexPath.row to calculate exact index of array for UICollectionView. - (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath { ...................... ....................... //Now calculate index of array (datasource) Note : here column is 2. NSInteger index = (indexpath.section*2)+indexPath.row cell.label.text = [textos objectAtIndex:index]; return cell; }...
iOS - Simple way to check which UITabBar option is selected
ios,if-statement,uitabbaritem,nsindexpath
You should implement the UITabBarDelegate protocol into your ViewController, and set the UITabBar delegate to self self.tabBar.delegate = self; After that, you can implement the method tabBar:didSelectItem: - (void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item { // Check here for the item and change tintColor accordingly // For example: if([item isEqual:[self.tabBar.items objectAtIndex:1]) {...
Custom collection view layout with Indexpath of length 3
ios,objective-c,uikit,uicollectionview,nsindexpath
The answer is very simple and yet unsatisfactory for you maybe. It can't be done like that. The indexPath is created by the collectionView and not by yourself. Since the collectionView has no attribute column, you can't use it. However what you can do is calculate the column value based...
iOS - TableView - Get Index of Header section on tapping button
ios,objective-c,uitableview,nsindexpath
-(UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{ // create custom header here // set up a button method [yourButton addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside]; // set the button tag as section yourButton.tag = section; return yourCustomHeaderWithButton; } later -(void)buttonAction:(id)sender{ UIButton *clickedButton = (UIButton*)sender; NSLog(@"section : %i",clickedButton.tag); } ...
How to select objects from an NSArray that are contained in another NSArray using a predicate
ios,objective-c,nsarray,nspredicate,nsindexpath
NSPredicate is just a predicate and nothing more. It is applied to some object and yields YES or NO. A predicate can be used for filtering an array, but since the predicate itself is applied to each single array element, it does not "know" the location (or index) of the...
UITableView cell displaying wrong content after height change
ios,objective-c,uitableview,nsindexpath,heightforrowatindexpath
The problem is there because of an error related to recycling cells in the tableView:cellForSubscribedNotificationsRowAtIndexPath: method. Changing the height of one of the cells makes this error visible. You need to add code to the default case to remove accessories and cell text that you add for RowOne and RowTwo:...
How can I get the “row” from indexPathsForSelectedRows?
You can do NSArray *selectedCells = [self.storeTableView indexPathsForSelectedRows]; NSIndexPath *firstIndexPath = [selectedCells objectAtIndex:0]; NSUInteger row = firstIndexPath.row and row will be 4 in your case....
IndexPath for Selected Cell UICollectionView
ios8,uicollectionview,nsindexpath
in method (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath add sth like this: UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"yourCelId" forIndexPath:indexPath]; if (cell.selected) { cell.backgroundColor = [UIColor orangeColor]; } else { cell.backgroundColor = [UIColor clearColor]; } It's happens because cells are reused and you have to reset all values that could be changed....