FormSheet mode view, click the method of hiding the modal view outside the modal view, formsheet Mode

FormSheet mode view, click the method of hiding the modal view outside the modal view, formsheet Mode

# Pragma-mark click a blank area outside the modal view to hide the modal View

-(Void) viewDidAppear :( BOOL) animated

{

[Super viewDidAppear: animated];

_ TapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget: selfaction: @ selector (handleTapBehind :)];

[_ TapRecognizer setNumberOfTapsRequired: 1];

_ TapRecognizer. cancelsTouchesInView = NO; // So the user can still interact with controls in the modal view

[Self. view. window addGestureRecognizer: _ tapRecognizer];

[_ TapRecognizer setDelegate :( id <UIGestureRecognizerDelegate>) self];

}

-(Void) handleTapBehind :( UITapGestureRecognizer *) sender

{

If (sender. state = UIGestureRecognizerStateEnded ){

// Passing nil gives us coordinates in the window

CGPoint location = [sender locationInView: nil];

// Swap (x, y) on iOS 8 in landscape

If (SYSTEM_VERSION_MORE_THAN_8 ){

If (UIInterfaceOrientationIsLandscape ([UIApplicationsharedApplication]. statusBarOrientation )){

Location = CGPointMake (location. y, location. x );

}

}

// Convert the tap's location into the local view's coordinate system, and test to see if it's in or outside. If outside, dismiss the view.

If (! [Self. view pointInside: [self. view convertPoint: location fromView: self. view. window] withEvent: nil]) {

// Remove the recognizer first so it's view. window is valid

[Self. view. window removeGestureRecognizer: sender];

[Self dismissViewControllerAnimated: YES completion: nil];

}

}

}

# Pragma mark-UIGestureRecognizer Delegate

-(BOOL) gestureRecognizerShouldBegin :( UIGestureRecognizer *) gestureRecognizer

{

Return YES;

}

-(BOOL) gestureRecognizer :( UIGestureRecognizer *) gestureRecognizer author :( UIGestureRecognizer *) otherGestureRecognizer

{

Return YES;

}

-(BOOL) gestureRecognizer :( UIGestureRecognizer *) gestureRecognizer shouldReceiveTouch :( UITouch *) touch

{

Return YES;

}

 

Reprinted: http://my.oschina.net/CreeveLiu/blog/347913