我需要复制单元格between 2 table views。
我有一个或多或少的工作解决方案。但是，它并不顺利，我很乐意做类似于pulse app重新订购供稿选项...
脉冲工作方式的特殊之处在于，重新排序动画与正常的单元格重新排序相同，但单元格仍然可以在表格之间移动。
这就是我现在所拥有的：
- (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;
}
}
更新：我创建了一个开源项目来展示我目前的进展：
答案 0 :(得分：0)
尝试这些链接，提供有关如何执行此操作的示例。
这可能会对你有帮助。