The touch of the Core animation (Iv.)

First, transition animation acceptance

A subclass of caanimation for transition effects that can be animated to move or remove a screen from a layer. For example, like Uinavigationcontroller is the use of the transition animation to launch and enter the page.

Include attributes:

Type: Transition types of animations (how to perform transition animations)

Subtype: Transition Direction

Startprogress: Starting point (percentage of overall animation)

Endprogress: Endpoint (percentage of overall animation)

Second, code example

{

Create a transition animation instance

Catransition *ctanima = [catransition animation];

Set Transition type

Ctanima.type = @ "Cude";

Set the transition direction

Ctanima.subtype = Kcatransitionfromleft; Perform transition animations from the left

Animation Execution Time

Ctanima.duration = 1.0f;

Of course, you can also set the start point

ctanima.startprogress = 0.5;

ctanima.endprogress = 0.5;

Last added to the specified view

[Layer Addanimation:ctanima Forkey:nil];

}

Three, the group animation simple Introduction

Also a subclass of Caanimation, you can save an animated set of objects, and when you add caanimationgroup to a layer, all the animations in the group run concurrently.

Include attributes:

Animatitons: An array to save the animation

By default, a set of animated objects is run by a colleague, or you can set the start time by modifying the begintime.

Iv. code Examples

{

Create a few different animations first

Cabasicanimation *b1 = [cabasicanimation animation];

B1.keypath = @ "position"; Translation

B1.byvalue = [Nsvalue valuewithcgpoint:cgpointmake (+)];

Cabasicanimation *b2 = [cabasicanimation animation];

B2.keypath = @ "bounds"; Scaling

B2.tovalue =[Nsvalue valuewithcgrect:cgrectmake (0, 0, $)];

Cabasicanimation *b2 = [cabasicanimation animation];

B2.keypath = @ "transform"; Rotating

B2.tovalue =[nsvalue valuewithcatransform3d:catransform3dmakerotation (m_pi_4, 0, 0, 1)];

And put these animations into the array.

Caanimationgroup *canimag = [caanimationgroup animation];

canimag.animations = @[b1,b2,b3];

canimag.duration = 2.0f;

canimag.removeoncompletion = NO;

canimag.fillmode = kcafillmodeforwards;

Last added to the specified view

[View.layer addanimation:canimag Forkey:nil];

}

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The touch of the Core animation (Iv.)