Animato reloadData su UITableView

Question

Come vorresti un anime - reloadData su UITableView? La fonte dei dati è UIFetchedResultsController quindi non posso giocare con – insertSections:withRowAnimation:, – deleteSections:withRowAnimation: avvolto in – beginUpdates, – endUpdates.

MODIFICA: Voglio chiamare - reloadData dopo il ripristino NSFetchedResultsController.

Answer 1

ho fatto metodo categoria.

- (void)reloadData:(BOOL)animated 
{ 
    [self reloadData]; 

    if (animated) { 

     CATransition *animation = [CATransition animation]; 
     [animation setType:kCATransitionPush]; 
     [animation setSubtype:kCATransitionFromBottom]; 
     [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]]; 
     [animation setFillMode:kCAFillModeBoth]; 
     [animation setDuration:.3]; 
     [[self layer] addAnimation:animation forKey:@"UITableViewReloadDataAnimationKey"]; 

    } 
} 

Answer 2

Non è possibile animare reloadData. Dovrai utilizzare i metodi di visualizzazione tabella insert..., delete..., move... e reloadRows... per renderlo animato.

Questo è piuttosto semplice quando si utilizza un NSFetchedResultsController. La documentazione per NSFetchedResultsControllerDelegate contiene una serie di metodi di esempio che basta per adattarsi al vostro proprio codice:

- (void)controllerWillChangeContent:(NSFetchedResultsController *)controller { 
    [self.tableView beginUpdates]; 
} 


- (void)controller:(NSFetchedResultsController *)controller didChangeSection:(id <NSFetchedResultsSectionInfo>)sectionInfo 
    atIndex:(NSUInteger)sectionIndex forChangeType:(NSFetchedResultsChangeType)type { 

    switch(type) { 
     case NSFetchedResultsChangeInsert: 
      [self.tableView insertSections:[NSIndexSet indexSetWithIndex:sectionIndex] 
          withRowAnimation:UITableViewRowAnimationFade]; 
      break; 

     case NSFetchedResultsChangeDelete: 
      [self.tableView deleteSections:[NSIndexSet indexSetWithIndex:sectionIndex] 
          withRowAnimation:UITableViewRowAnimationFade]; 
      break; 
    } 
} 


- (void)controller:(NSFetchedResultsController *)controller didChangeObject:(id)anObject 
    atIndexPath:(NSIndexPath *)indexPath forChangeType:(NSFetchedResultsChangeType)type 
    newIndexPath:(NSIndexPath *)newIndexPath { 

    UITableView *tableView = self.tableView; 

    switch(type) { 

     case NSFetchedResultsChangeInsert: 
      [tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath] 
         withRowAnimation:UITableViewRowAnimationFade]; 
      break; 

     case NSFetchedResultsChangeDelete: 
      [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] 
         withRowAnimation:UITableViewRowAnimationFade]; 
      break; 

     case NSFetchedResultsChangeUpdate: 
      [self configureCell:[tableView cellForRowAtIndexPath:indexPath] 
        atIndexPath:indexPath]; 
      break; 

     case NSFetchedResultsChangeMove: 
      [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] 
         withRowAnimation:UITableViewRowAnimationFade]; 
      [tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath] 
         withRowAnimation:UITableViewRowAnimationFade]; 
      break; 
    } 
} 


- (void)controllerDidChangeContent:(NSFetchedResultsController *)controller { 
    [self.tableView endUpdates]; 
} 

Answer 3

È possibile effettuare un'animazione di base del reloadData utilizzando:

// Reload table with a slight animation 
[UIView transitionWithView:tableViewReference 
        duration:0.5f 
        options:UIViewAnimationOptionTransitionCrossDissolve 
       animations:^(void) { 
    [tableViewReference reloadData]; 
} completion:NULL]; 

Answer 4

ho creato un metodo UITableView categoria sulla base di soluzione da this link.

Dovrebbe ricaricare tutte le sezioni della tabella. Puoi giocare con le opzioni UITableViewRowAnimation per i diversi effetti di animazione.

- (void)reloadData:(BOOL)animated 
{ 
    [self reloadData]; 

    if (animated) 
    { 
     [self reloadSections:[NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, self.numberOfSections)] withRowAnimation:UITableViewRowAnimationBottom]; 
    } 
} 

Answer 5

typedef enum { 
    UITableViewRowAnimationFade, 
    UITableViewRowAnimationRight, 
    UITableViewRowAnimationLeft, 
    UITableViewRowAnimationTop, 
    UITableViewRowAnimationBottom, 
    UITableViewRowAnimationNone, 
    UITableViewRowAnimationMiddle, 
    UITableViewRowAnimationAutomatic = 100 
} UITableViewRowAnimation; 

e il metodo:

[self.tableView reloadSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:UITableViewRowAnimationFade]; 

Answer 6

Si può semplicemente chiamare questa linea quando si desidera ricaricare l'intera tabella con un'animazione:

NSRange range = NSMakeRange(0, [self numberOfSectionsInTableView:self.tableView]); 
NSIndexSet *sections = [NSIndexSet indexSetWithIndexesInRange:range]; 
[self.tableView reloadSections:sections withRowAnimation:UITableViewRowAnimationFade]; 

Answer 7

si potrebbe desiderare di utilizzare:

Objective-C

/* Animate the table view reload */ 
[UIView transitionWithView:self.tableView 
        duration:0.35f 
        options:UIViewAnimationOptionTransitionCrossDissolve 
       animations:^(void) 
{ 
     [self.tableView reloadData]; 
} 
       completion:nil]; 

Swift opzioni

UIView.transitionWithView(tableView, 
          duration:0.35, 
          options:.TransitionCrossDissolve, 
          animations: 
{() -> Void in 
    self.tableView.reloadData() 
}, 
          completion: nil); 

Animazione:

TransitionNone TransitionFlipFromLeft TransitionFlipFromRight TransitionCurlUp TransitionCurlDown TransitionCrossDissolve TransitionFlipFromTop TransitionFlipFromBottom

Reference