Gesture and touch, gesture touch

Gesture and touch, gesture touch

UIImageView * imgView = [[UIImageView alloc] initWithFrame: CGRectMake (100,100, 75, 75)];

ImgView. image = [UIImage imageNamed: @ "a"];

ImgView. tag= 200;

[Self. view addSubview: imgView];

// Set to allow touch and gesture execution

ImgView. userInteractionEnabled = YES;

// Create a click gesture

UITapGestureRecognizer * tap = [[UITapGestureRecognizer alloc] initWithTarget: self action: @ selector (tapGestureClick :)];

// Add the created click gesture to the image object

[ImgView addGestureRecognizer: tap];

// Create a drag gesture

UIPanGestureRecognizer * pan = [[UIPanGestureRecognizer alloc] initWithTarget: self action: @ selector (panGestureClick :)];

[ImgView addGestureRecognizer: pan];

// Create a long-pressed gesture

UILongPressGestureRecognizer * longPress = [[UILongPressGestureRecognizer alloc] initWithTarget: self action: @ selector (longPressGestureClick :)];

[ImgView addGestureRecognizer: longPress];

// Create a rotation gesture

UIRotationGestureRecognizer * rotate = [[UIRotationGestureRecognizer alloc] initWithTarget: self action: @ selector (rotateGestureClick :)];

[ImgView addGestureRecognizer: rotate];

// Create a kneading gesture

UIPinchGestureRecognizer * pinch = [[UIPinchGestureRecognizer alloc] initWithTarget: self action: @ selector (pinchGestureClick :)];

// The kneading gesture can be executed simultaneously with other gestures

Pinch. delegate = self;

[ImgView addGestureRecognizer: pinch];

// Create a sweep and vertical sweep gesture

UISwipeGestureRecognizer * hs = [[UISwipeGestureRecognizer alloc] initWithTarget: self action: @ selector (hsClick :)];

Hs. direction = uiswipegesturerecognizerdireleft | UISwipeGestureRecognizerDirectionRight;

[Self. view addGestureRecognizer: hs];

UISwipeGestureRecognizer * vs = [[UISwipeGestureRecognizer alloc] initWithTarget: self action: @ selector (vsClick :)];

Vs. direction = UISwipeGestureRecognizerDirectionDown | UISwipeGestureRecognizerDirectionUp;

[Self. view addGestureRecognizer: vs];

}

-(Void) vsClick :( UISwipeGestureRecognizer *)

{

NSLog (@ "longitudinal scan ");

}

 

 

-(Void) hsClick :( UISwipeGestureRecognizer *) hs

{

NSLog (@ "sweep ");

}

 

 

 

// This method is called when the kneading gesture is executed.

-(Void) pinchGestureClick :( UIPinchGestureRecognizer *) pinch

{

Pinch. view. transform = CGAffineTransformScale (pinch. view. transform, pinch. scale, pinch. scale );

[Pinch setScale: 1];

 

}

 

 

 

 

// Call this method when performing a rotation gesture

-(Void) rotateGestureClick :( UIRotationGestureRecognizer *) rotate

{

// Roate. rotation the rotation radians of the finger

Rotate. view. transform = CGAffineTransformRotate (rotate. view. transform, rotate. rotation );

// Keep the image and finger in the same radian

[Rotate setRotation: 0];

}

 

 

 

 

// This method is called by the Chief Executive on time

// Parameter name. view is the object of the added gesture

-(Void) longPressGestureClick :( UILongPressGestureRecognizer *) loginPress

{

LoginPress. view. center = self. view. center;

}

 

 

 

// This method is executed when the drag gesture is executed.

-(Void) panGestureClick :( UIPanGestureRecognizer *) pan

{

// Pan. view is the clicked object

Pan. view. center = [pan locationInView: self. view];

}

 

 

 

 

 

// The parameter is the gesture type of the image.

-(Void) tapGestureClick :( UITapGestureRecognizer *) tap

{

NSLog (@ "tap ");

}

-(Void) didReceiveMemoryWarning

{

[Super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

 

// Return YES, allows the object that adds a gesture to execute multiple gestures at the same time

// Complies with the UIGestureRecognizerDelegate Protocol

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

{

Return YES;

}

(Touch)

 

// Add an image to the page

UIImageView * imgView = [[UIImageView alloc] initWithFrame: CGRectMake (100,100, 75, 75)];

ImgView. image = [UIImage imageNamed: @ "a"];

[Self. view addSubview: imgView];

ImgView. tag= 100;

// Allows the current screen to support multi-touch

Self. view. multipleTouchEnabled = YES;

// Allows image objects to support gestures and touch

ImgView. userInteractionEnabled = YES;

// Set the button on the right of the navigation bar

UIBarButtonItem * rightBtn = [[UIBarButtonItem alloc] initWithTitle: @ "Next" style: UIBarButtonItemStylePlain target: self action: @ selector (rightBtnClick :)];

Self. navigationItem. rightBarButtonItem = rightBtn;

}

 

-(Void) rightBtnClick :( UIBarButtonItem *) bt

{

_ SecondController = [[SecondViewController alloc] init];

_ SecondController. navigationItem. title = @ "Gesture ";

[Self. navigationController pushViewController: _ secondController animated: YES];

}

 

-(Void) didReceiveMemoryWarning

{

[Super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

 

// Call this method when you touch the screen

-(Void) touchesBegan :( NSSet *) touches withEvent :( UIEvent *) event

{

 

NSLog (@ "touhesBegan ");

// Obtain the number of fingers on the screen

NSLog (@ "% I", [touches count]);

}

 

 

// Call this method when your fingers slide on the screen

-(Void) touchesMoved :( NSSet *) touches withEvent :( UIEvent *) event

{

UIImageView * imgView = (UIImageView *) [self. view viewwithtagag: 100];

For (UITouch * t in touches ){

// T. view: Obtain the empty object clicked by the finger.

If (t. view = imgView ){

// The image is moved based on the position of the finger on the image.

ImgView. center = [t locationInView: self. view];

}

}

NSLog (@ "moving ");

}

 

-(Void) touchesEnded :( NSSet *) touches withEvent :( UIEvent *) event

{

NSLog (@ "end ");

}