iOS Learning Note 27-gesture 1

-(void) pinchgesture

{

Uipinchgesturerecognizer *pinch = [[Uipinchgesturerecognizer alloc]initwithtarget:self Action: @selector (pinch:)];

[Self.view Addgesturerecognizer:pinch];

}

-(void) Pinch: (Uipinchgesturerecognizer *) pinch{

float scale = Pinch.scale;

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

if (scale >1) {

Self.gestureLabel.text [email protected] "meshing amplification";

}else{

Self.gestureLabel.text = @ "Zoom Out";

}

}

-(void) addtapgesture

{

/**

* One finger click

**/

UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initwithtarget:self Action: @selector (tap:)];

tap.numberoftouchesrequired = 1;

tap.numberoftapsrequired = 1;

[Self.view Addgesturerecognizer:tap];

/**

* One finger double click

**/

UITapGestureRecognizer *TAP2 = [[UITapGestureRecognizer alloc]initwithtarget:self Action: @selector (Doubletap:)];

tap2.numberoftapsrequired = 2;

[Self.view ADDGESTURERECOGNIZER:TAP2];

/**

* Mutex properties for gesture recognition

**/

When both clicks and double-click appear on the same view, you can implement only one

[Tap REQUIREGESTURERECOGNIZERTOFAIL:TAP2];

/**

* Two Finger click

**/

UITapGestureRecognizer *tap3 = [[UITapGestureRecognizer alloc]initwithtarget:self Action: @selector (Singletwotap:)];

tap3.numberoftouchesrequired = 2;

[Self.view ADDGESTURERECOGNIZER:TAP3];

[Tap2 REQUIREGESTURERECOGNIZERTOFAIL:TAP3];

}

-(void) swipegesture

{

Uiswipegesturerecognizer *swipe = [[Uiswipegesturerecognizer alloc]initwithtarget:self Action: @selector (swipe:)];

Swipe.direction = Uiswipegesturerecognizerdirectiondown;

[Self.view Addgesturerecognizer:swipe];

}

-(void) Swipe: (Uiswipegesturerecognizer *) swipe

{

Self.gestureLabel.text = @ "Sweep down";

}

-(void) Singletwotap: (UITapGestureRecognizer *) tap

{

Self.gestureLabel.text = @ "two finger click";

}

-(void) Doubletap: (UITapGestureRecognizer *) tap

{

Self.gestureLabel.text = @ "one finger double click";

}

-(void) Tap: (UITapGestureRecognizer *) tap{

Self.gestureLabel.text = @ "one finger click";

}

iOS Learning Note 27-gesture 1