如何给uicollectionviewcell添加长按手势

1.创建集合试图,这个就比较简单了.创建完集合试图,我们在集合试图上面添加长按的手势

UIGestureRecognizerDelegate 先遵从协议

longPressGr =

=

=

=

2.我们在longpressToDo里面添加方法-(

)longPressToDo:(UILongPressGestureRecognizer *

(gestureRecognizer.state !=

=

*indexPath =

(indexPath ==

UICollectionViewCell* cell =

这里我们为tableview添加长按手势

UILongPressGestureRecognizer *longPressGr = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressAction:)]

longPressGr.minimumPressDuration = 0.5f

longPressGr.numberOfTouchesRequired = 1

[_tableView addGestureRecognizer:longPressGr]

[longPressGr release]

这时我们会发现每次按住tableView并且松开的时候, longPressAction: 这个方法会执行2次

- (void)longPressAction:(UILongPressGestureRecognizer *)longPress

{

if (longPress.state == UIGestureRecognizerStateBegan) {

CGPoint point = [longPress locationInView:_tableView]

NSIndexPath *indexPath = [_tableView indexPathForRowAtPoint:point]// 可以获取我们在哪个cell上长按

if (indexPath != nil) {

NSLog(@"%ld", indexPath.row)

}

}

}

第一步给cell添加长按方法

第二步触发的方法

-(void)longclick:(UIGestureRecognizer *)gar{

switch (gar.state) {

}

}

//第三步：设定单位格可移动

-(BOOL)collectionView:(UICollectionView *)collectionView canMoveItemAtIndexPath:(NSIndexPath *)indexPath{

}

//第四步：改变数据源顺序

-(void)collectionView:(UICollectionView *)collectionView moveItemAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath{

// FLmodel *model = [_dataSource objectAtIndex:sourceIndexPath.item]

MenuInfoModel *model =[self.dataSource objectAtIndex:sourceIndexPath.item]

[_dataSource removeObject:model]

[_dataSource insertObject:model atIndex:destinationIndexPath.item]

}

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