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layout all cells after HeaderView's height was changed #113

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layout all cells after HeaderView's height was changed #113

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b1a8c73
Layout all Cells after HeaderView's height changed
xuzhe Dec 6, 2011
6f6ac8d
the contentSize should also be changed after or 's height has been c…
xuzhe Dec 7, 2011
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21 changes: 21 additions & 0 deletions Classes/AQGridView.m
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Original file line number Diff line number Diff line change
Expand Up @@ -89,6 +89,7 @@ - (void) deleteVisibleCell: (AQGridViewCell *) cell atIndex: (NSUInteger) visibl
@interface AQGridView ()
@property (nonatomic, copy) NSIndexSet * animatingIndices;
- (void) cellUpdateAnimationStopped: (NSString *) animationID finished: (BOOL) finished context: (void *) context;
- (void) handleGridViewBoundsChanged: (CGRect) oldBounds toNewBounds: (CGRect) bounds;
@end


Expand Down Expand Up @@ -357,6 +358,9 @@ - (void) setGridHeaderView: (UIView *) newHeaderView
[_headerView removeFromSuperview];

_headerView = newHeaderView;

CGFloat oldHeight = _gridData.topPadding;

if ( _headerView == nil )
{
_gridData.topPadding = 0.0;
Expand All @@ -367,6 +371,10 @@ - (void) setGridHeaderView: (UIView *) newHeaderView
_gridData.topPadding = _headerView.frame.size.height;
}

if ( _gridData.topPadding != oldHeight )
{
[self handleGridViewBoundsChanged:self.bounds toNewBounds:self.bounds];
}
[self setNeedsLayout];
}

Expand All @@ -383,6 +391,8 @@ - (void) setGridFooterView: (UIView *) newFooterView
[_footerView removeFromSuperview];

_footerView = newFooterView;

CGFloat oldHeight = _gridData.bottomPadding;
if ( _footerView == nil )
{
_gridData.bottomPadding = 0.0;
Expand All @@ -393,6 +403,9 @@ - (void) setGridFooterView: (UIView *) newFooterView
_gridData.bottomPadding = _footerView.frame.size.height;
}

if ( _gridData.bottomPadding != oldHeight ) {
[self handleGridViewBoundsChanged:self.bounds toNewBounds:self.bounds];
}
[self setNeedsLayout];
}

Expand Down Expand Up @@ -654,6 +667,14 @@ - (void) layoutSubviews
if ( (_flags.needsReload == 1) && (_animationCount == 0) && (_reloadingSuspendedCount == 0) )
[self reloadData];

if ( (_headerView && _gridData.topPadding != _headerView.frame.size.height ) ||
(_footerView && _gridData.bottomPadding != _footerView.frame.size.height) )
{
_gridData.topPadding = _headerView.frame.size.height;
_gridData.bottomPadding = _footerView.frame.size.height;
[self handleGridViewBoundsChanged:self.bounds toNewBounds:self.bounds];
}

if ( (_reloadingSuspendedCount == 0) && (!CGRectIsEmpty([self gridViewVisibleBounds])) )
{
[self updateVisibleGridCellsNow];
Expand Down