iOS Learning note 28-base animations and keyframe animations

First create a layer

Calayer *layer = [Calayer layer];

Layer.bounds = CGRectMake (0, 0, 100, 100);

Layer.position = cgpointmake (100, 100);

Layer.backgroundcolor = [Uicolor Yellowcolor]. Cgcolor;

[Self.view.layer Addsublayer:layer];

Self.layer = layer;

Set Up Click events

-(void) Touchesbegan: (Nsset<uitouch *> *) touches withevent: (Uievent *) event

{

[Self animationscale];

[Self keyanimation];

}

Shrink Animation

-(void) animationscale{

Cabasicanimation *anim = [cabasicanimation animation];

2 Setting up animations

Anim.keypath = @ "bounds";//Pan

Anim.keypath = @ "position";//Zoom

Anim.keypath [email protected] "transform";

which point to reach

Anim.tovalue = [Nsvalue valuewithcgrect:cgrectmake (0, 0, 50, 50)];

Anim.tovalue = [Nsvalue valuewithcgpoint:cgpointmake (300,300)];

Anim.tovalue = [Nsvalue valuewithcatransform3d:catransform3dmakerotation (M_pi_4, 1, 1, 0)];

Anim.duration = 2;

Anim.removedoncompletion = NO;

Anim.fillmode = @ "forwards";

[Self.layer Addanimation:anim Forkey:nil];

}

-(void) keyanimation

{

Cakeyframeanimation *anim = [cakeyframeanimation animationwithkeypath:@ "position"];

Anim.removedoncompletion = NO;

Anim.fillmode = Kcafillmodeforwards;

Anim.duration = 2;

Cgmutablepathref path = cgpathcreatemutable ();

Cgpathaddellipseinrect (Path, NULL, CGRectMake (100, 100, 200, 200));

Anim.path = path;

Anim.timingfunction = [Camediatimingfunction functionwithname:kcamediatimingfunctioneaseout];

[Self.layer Addanimation:anim Forkey:nil];

}

iOS Learning note 28-base animations and keyframe animations