UITableView swipe gesture conflicts with UITableViewCell swipe
Following is the code I have written to put 2 finger swipe on UITableView :
UISwipeGestureRecognizer *leftSwipe = [UISwipeGestureRecognizer new];
[leftSwipe addTarget:self action:@selector(nextDay)];
leftSwipe.numberOfTouchesRequired = 2;
leftSwipe.direction = UISwipeGestureRecognizerDirectionLeft;
leftSwipe.delegate = self;
[leftSwipe setCancelsTouchesInView:YES];
[tableViewTasks addGestureRecognizer:leftSwipe];
UISwipeGestureRecognizer *rightSwipe = [UISwipeGestureRecognizer new];
[rightSwipe addTarget:self action:@selector(previousDay)];
rightSwipe.numberOfTouchesRequired = 2;
rightSwipe.direction = UISwipeGestureRecognizerDirectionRight;
rightSwipe.delegate = self;
[rightSwipe setCancelsTouchesInView:YES];
[tableViewTasks addGestureRecognizer:rightSwipe];
I am using SWTableViewCell which has left and right (single tap) gestureRecognisers.
When UITableView is swiped left/right using 2 fingers, SWTableViewCell left and right gestures are also fired after that.
How to stop the conflict ?
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{
if (SWTableViewCellTouch) {
SWTableViewCellTouch = NO
return NO;
}
return YES;
}
当您触摸SWTableViewCell时，将BOOL SWTableViewCellTouch设置为YES。
The possible solution is enable/disable the BOOl (SWTableViewCellTouch) in the touchesBegan: method as below.
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
if ([[event touchesForView:self] count] > 1) {
// Its two finger touch so set the BOOL false like
SWTableViewCellTouch = NO;
}
else if ([[event touchesForView:self] count] == 1){
// Its sigle finger touch so set the BOOL true like
SWTableViewCellTouch = YES;
}
[super touchesBegan:touches withEvent:event] ;}
Hope this will help you.
1. Implement UIGestureRecognizerDelegate in your UIViewController
2. Set leftSwipe.delegate = self; and leftSwipe.delegate = self;
3. Now check if the in its Delegate Method if UISwipeGesture have how many numberOfTouchesRequired
-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch
{
if ( [gestureRecognizer isMemberOfClass:[UISwipeGestureRecognizer class]] ) {
UISwipeGestureRecognizer *swipeGesture=(UISwipeGestureRecognizer *)gestureRecognizer ;
if(swipeGesture.numberOfTouchesRequired!=2)
{
//if Double not Double Swipe Touch Don't Linsten Gesture in your Viewcontroller
return NO;
}
}
return YES;
}
i hope this will solve your problem
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