nsindexpath

问题 Basically I am storing an index of an array in a NSInteger. I now need it as an NSIndexpath, I'm struggling to see and find a way to convert my NSInteger to NSIndexpath so I can reuse it. 回答1: For an int index : NSIndexPath *path = [NSIndexPath indexPathWithIndex:index]; Creates Index of the item in node 0 to point to as per the reference. To use the indexPath in a UITableView , the more appropriate method is NSIndexPath *path = [NSIndexPath indexPathForRow:row inSection:section]; 回答2: If you

问题 i want to animate the UICollectionViewCell when action is called. i have done UICollectionViewCell in Interface Builder , the UICollectionView also. Now i want to get the correct indexPath at my actionBtnAddToCard method. thats the way i try it now (method in ProduktViewCell.m): - (IBAction)actionAddToCart:(id)sender { XLog(@""); // see this line NSIndexPath *indexPath = ??** how can i access the correct indexPath**??; SortimentViewController *svc = [[SortimentViewController alloc]

问题 I'm trying to setup my table so that the user can select one item per section. For example: - Section 0 - Row 0 √ - Row 1 - Section 1 - Row 0 - Row 1 √ - Row 2 So in the above example if the user selects section 0, row 1 then row 0 in the same section should be unchecked and the selected row gets a checkmark. Same goes for section 1 where any selected row should get a checkmark and then I want to remove the checkmark from the previously selected row in the same section. - Section 0 - Row 0 -

问题 Any help you can offer would be appreciated. I have a app that has a tableView, detailView, flipView, and moreDetail View. It is fine moving through the transitions until the 26th element. The app crashes when I hit buttons that navigate to the flip and moreDetailView. I am given the error Msg: [NSIndexPath row] message sent to deallocated instance . I think I may be calling the indexPath too many times, but why does everything work well up until the 25th element and then stop working? How

问题 I have an array of NSURL array, and I am able to use functions removeAtIndex and insert . I know the fromIndexPath and toIndexPath and this method helps me to accomplish the same for [[NSURL]] using this Delegate method (check var data below): func moveDataItem(fromIndexPath : NSIndexPath, toIndexPath: NSIndexPath) { let name = self.data[fromIndexPath.section][fromIndexPath.item] self.data[fromIndexPath.section].removeAtIndex(fromIndexPath.item) self.data[toIndexPath.section].insert(name,

问题 I have two buttons in a custom layout collectionView's footer. I want to pass the indexPath of the footerView to destinationView class when user taps the button. I wrote my code in a typical way which I succeeded before. However, in some reason, whenever I tap the button it crashes. I tried different approaches for each button to accomplish this job but neither worked. I have set destinationView's class to the right class in a storyboard. Please somebody help me. Any help with code example

问题 I'm working on a custom layout collectionView which has quilt look and each section has a footer. Two buttons are inside footer and each button has a segue to another view(I set segues using IB). Footer has its own indexPath which was assigned in a UICollectionViewFlowLayout class(Where I made a custom layout). The indexPath of footer is like this - {section - row} {0-0} {1-0} {2-0}.... I want to keep this indexPath information to use at the another view which is linked to two buttons. I

问题 I have a bunch of UILocalNotifications but I only want to delete a certain one at a given indexpath, therefor [[UIApplication sharedApplication] cancelAllLocalNotifications]; wont work out for me. I know I can use [[UIApplication sharedApplication] cancelLocalNotification:UILocalNotification]; but how do I get the UILocalNotification from the given NSIndexPath? Thanks. 回答1: You can get an array of scheduled notification from: @property(nonatomic,copy) NSArray *scheduledLocalNotifications Get

问题 I'm trying to create a UITableView to allow the user to enter data, similar to a lot of the settings UITableViews, with some textfields and callouts to other tableviews for checkboxes. For such a common feature in apps, this does not seem to be very straight forward. I'm having trouble accessing the indexPath.row from my custom UITableViewCell. Here is where I allocate my custom UITableViewCell. UITableViewCell *cell = (UITableViewCell *)[tableView dequeueReusableCellWithIdentifier

问题 I am trying to save the indexPath for UICollectionView, but I get the following error: libc++abi.dylib: terminating with uncaught exception of type NSException My code is: Save index path: [[NSUserDefaults standardUserDefaults] setObject:indexPath forKey:@"CollectionIndex"]; [[NSUserDefaults standardUserDefaults] synchronize]; Load indexPath: NSIndexPath *storedIndexPath = [[NSUserDefaults standardUserDefaults] objectForKey:@"CollectionIndex"]; I have commented out code to find out which code