2011-03-15 13 views
9

between 2 table views hücrelerini kopyalamam gerekiyor.Pulse uygulaması olarak tablolar arasında hücreler nasıl kopyalanır

Az ya da çok çalışan bir çözümüm var. Ancak, pürüzsüz değildir ve pulse app reorder beslemeleri seçeneğine benzer bir şey yapmayı çok isterim ...

Atımın işleyiş biçiminde özel bir şey, yeniden sıralama animasyonunun normal bir yeniden sıralamadakiyle aynı olmasıdır. hücreler, ancak yine de hücreler tablolar arasında hareket edebilir.

- (BoardColumnView *) addColumn:(NSString *)title type:(ColumnType)type{ 
    BoardColumnView *col = [BoardColumnView createColumn:title]; 

    [self.columns addObject:col]; 

    // Add a pinch gesture recognizer to the table view. 
    UILongPressGestureRecognizer* draggingRecognizer = [[UILongPressGestureRecognizer alloc] 
                initWithTarget:self 
                action:@selector(moveActionGestureRecognizerStateChanged:) 
                ]; 

    draggingRecognizer.minimumPressDuration = 0.5; 
    draggingRecognizer.delegate = self; 

    [col.tableView addGestureRecognizer:draggingRecognizer]; 
    [draggingRecognizer release]; 


    return col; 
} 

#pragma mark - 
#pragma mark UIGestureRecognizer Delegate/Actions 

- (BOOL) gestureRecognizerShouldBegin: (UIGestureRecognizer *) gestureRecognizer 
{ 
    ALog(@"Drag detected"); 
    return YES; 
} 

- (void) moveActionGestureRecognizerStateChanged: (UIGestureRecognizer *) recognizer 
{ 
    switch (recognizer.state) 
    { 
     default: 
     case UIGestureRecognizerStateFailed: 
      // do nothing 
      break; 

     case UIGestureRecognizerStatePossible: 
     case UIGestureRecognizerStateCancelled: 
     { 
      ALog(@"Canceled"); 

      [UIView beginAnimations: @"SnapBack" context: NULL]; 
      [UIView setAnimationCurve: UIViewAnimationCurveEaseOut]; 
      [UIView setAnimationDuration: 0.5]; 
      [UIView setAnimationDelegate: self]; 
      [UIView setAnimationDidStopSelector: @selector(finishedSnap:finished:context:)]; 

      CGRect f = self.dragView.frame; 
      f.origin = _dragOriginCellOrigin; 
      self.dragView.frame = f; 

      [UIView commitAnimations]; 

      break; 
     } 
     case UIGestureRecognizerStateEnded: 
     { 
      // move the real cell into place 
      [UIView beginAnimations: @"SnapToPlace" context: NULL]; 
      [UIView setAnimationCurve: UIViewAnimationCurveEaseOut]; 
      [UIView setAnimationDuration: 0.5]; 
      [UIView setAnimationDelegate: self]; 
      [UIView setAnimationDidStopSelector: @selector(finishedSnap:finished:context:)]; 

      CGRect r = self.dragView.frame;//[self.content rectForItemAtIndex: _emptyCellIndex]; 
      CGRect f = self.dragView.frame; 
      f.origin.x = r.origin.x + floorf((r.size.width - f.size.width) * 0.5); 
      f.origin.y = r.origin.y + floorf((r.size.height - f.size.height) * 0.5); 
      NSLog(@"Gesture ended-- moving to %@", NSStringFromCGRect(f)); 
      self.dragView.frame = f; 

      self.dragView.transform = CGAffineTransformIdentity; 
      self.dragView.alpha = 1.0; 

      [UIView commitAnimations]; 
      break; 
     } 

     case UIGestureRecognizerStateBegan: 
     {   
      ALog(@"Start move.."); 
      // find the cell at the current point and copy it into our main view, applying some transforms 
      _lastColumn = (BoardColumnView *)[(UITableView *)recognizer.view superview]; 
      _targetColumn = _lastColumn; 

      if (_lastIndexPath) { 
       [_lastIndexPath release]; 
       _lastIndexPath = nil; 
      } 

      _lastIndexPath = [_lastColumn.tableView indexPathForRowAtPoint:[recognizer locationInView: _lastColumn]]; 

      UITableViewCell *sourceCell = [_lastColumn.tableView cellForRowAtIndexPath:_lastIndexPath]; 

      CGRect frame = [_lastColumn convertRect: sourceCell.frame fromView: self.content]; 

      self.dragView = [[[UIImageView alloc] initWithImage:[sourceCell screenshot]] autorelease]; 
      self.dragView.opaque = YES; 
      self.dragView.backgroundColor = _lastColumn.backgroundColor; 

      self.dragView.center = [recognizer locationInView: self.view]; 
      //self.dragView.cornerRadius = 8; // if you like rounded corners 
      self.dragView.layer.shadowOffset = CGSizeMake(-5, 2); 
      self.dragView.layer.shadowRadius = 5; 
      self.dragView.layer.shadowOpacity = 0.5; 

      [content addSubview: self.dragView]; 

      [content bringSubviewToFront:self.dragView]; 
      // grab some info about the origin of this cell 
      _dragOriginCellOrigin = frame.origin; 

      [UIView beginAnimations: @"" context: NULL]; 
      [UIView setAnimationDuration: 0.2]; 
      [UIView setAnimationCurve: UIViewAnimationCurveEaseOut]; 

      // transformation-- larger, slightly transparent 
      self.dragView.transform = CGAffineTransformMakeScale(1.2, 1.2); 
      self.dragView.alpha = 0.7; 

      [UIView commitAnimations]; 

      /* // reload the grid underneath to get the empty cell in place 
      [self.content reloadItemsAtIndices: [NSIndexSet indexSetWithIndex: index] 
           withAnimation: AQGridViewItemAnimationNone]; 
      */ 
      break; 
     } 

     case UIGestureRecognizerStateChanged: 
     { 
      // update draging cell location 
      self.dragView.center = [recognizer locationInView: self.view]; 

      //Determinar sobre que columna esta flotando.. 
      CGRect global; 

      if (_targetColumn) { 
       _targetColumn = nil; 
      } 
      for (BoardColumnView *col in self.columns) { 
       UITableView *table = col.tableView; 
       global = [table convertRect:self.dragView.frame fromView:content]; 

       if ([table pointInside:global.origin withEvent:nil]) { 
        ALog([NSString stringWithFormat: @"Esta sobre la tabla %@", col.column.name]); 
        _targetColumn = col; 
        break; 
       } 
      } 

      if (!_targetColumn) 
      {     
       ALog(@"Esta en zona muerta"); 
      } 

      break; 
     } 
    } 
} 

- (void) finishedSnap: (NSString *) animationID finished: (NSNumber *) finished context: (void *) context 
{  
    if (_targetColumn && _lastIndexPath) {  
     ALog(@"Moviendo a nuevo destino"); 

     CGRect frame = [_targetColumn convertRect: self.dragView.frame fromView: self.content];  
     NSIndexPath *destPath = [_targetColumn.tableView indexPathForRowAtPoint: frame.origin]; 

     [UIView beginAnimations: @"" context: NULL]; 
     [UIView setAnimationDelegate:self]; 
     [UIView setAnimationDidStopSelector:@selector(animationDidStop:finished:context:)]; 

     self.dragView.backgroundColor = _targetColumn.backgroundColor; 

     //Si inserta entre tareas en destino... 

     _lastColumn.totalRows -= 1; 
     _targetColumn.totalRows += 1; 

     [_lastColumn.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:_lastIndexPath] withRowAnimation:UITableViewRowAnimationTop]; 

     if (destPath) {   
      [_targetColumn.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:destPath] withRowAnimation:UITableViewRowAnimationBottom]; 
     } else { 
      [_targetColumn.tableView reloadData]; 
     } 



     [UIView commitAnimations]; 
    } else {   
     ALog(@"Cancelado el moviento, regresar a home"); 

     UITableViewCell * sourceCell = [_lastColumn.tableView cellForRowAtIndexPath:_lastIndexPath];   
     if (sourceCell) { 

      [UIView beginAnimations: @"Back" context: NULL]; 
      [UIView setAnimationCurve: UIViewAnimationCurveEaseOut]; 
      [UIView setAnimationDuration: 0.5]; 
      [UIView setAnimationDelegate:self]; 
      [UIView setAnimationDidStopSelector:@selector(animationDidStop:finished:context:)]; 

      //self.dragView.transform = CGAffineTransformIdentity; 
      self.dragView.frame = [self.content convertRect: sourceCell.frame fromView: _lastColumn]; 
      //self.dragView.alpha = 0.0; 

      [UIView commitAnimations];  
     } 
    } 
} 

- (void)animationDidStop:(id)animationID finished:(BOOL)flag context:(id)context { 
    // dismiss our copy of the cell 
    ALog(@"Eliminando drag view"); 
    [self.dragView removeFromSuperview]; 
    self.dragView = nil; 

    _lastColumn = nil; 
    _targetColumn = nil; 

    if (_lastIndexPath) { 
     _lastIndexPath = nil; 
    } 
} 

GÜNCELLEME: şimdiye kadar benim ilerleme göstermek için bir açık kaynak projesi oluşturduk:

Bu

Şimdi ne var

https://bitbucket.org/elmalabarista/dragdroptableviews

+0

Benzer nabız uygulaması hakkında bu eğiticileri okumanızı öneririm http://www.raywenderlich.com/4680/how-to-make-an-interface-with-horizontal-tables-like-the-pulse-news-app -part-1 http://www.raywenderlich.com/4723/how-to-make-an-interface-with-horizontal-tables-like-the-pulse-news-app-part-2 ve bu OpenSource http://www.raywenderlich.com/downloads/HorizontalTables2.zip Enjoy! –

+0

olası bir kopyası [ipad: Bir UITableViewController'dan bir UITableViewCell sürükleyin ve başka birine bırakın] (http://stackoverflow.com/questions/6506946/ipad-drag-a-uitableviewcell-from-one-uitableviewcontroller-and-drop- Bu içine-ano) – CodaFi

cevap

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