"Pro Android Graphics" Fourth section of reading notes

Android procedural Animation:: XML, Concepts and optimizationProcedural Animation Concepts:tweens and Interpolators

interpolator: http://developer.android.com/reference/android/animation/TimeInterpolator.html

Procedural Animation Data values:ranges and Pivot Point

Range and Center point

procedural Animation Transforms:rotate, scale, Translate scale:One Of them involves size rotation:< Span style= "FONT-SIZE:14PX;" >involves orientation (which direction that something is facing) translation:involves movement procedural Animation compositing:alpha blending  procedural Animation timing:using Duration and Offsets < /span>procedural Animation Loops:repeatcount and repeatmode 

RepeatCount Interger (Loop forever Use Infinite (-1))

Repeatmode:restart (1)

Reverse (2)

The <set> tag:using XML to Group procedural Animation

Android.view.animation

rule of thumb is to apply your transformational parameters locally

Procedural Animation vs. frame animation:the trade-off frame Animation

Memory intensive (more RAM required): Displaying the image from memory onto the View was fairly straightforward and does not require any Complex calculations, so all processing involves moving each frame's image asset from memory over to display screen.

Procedural animation

tends to is more processing intensive (requires more calculations)

Creating a procedural Animation Definition Using XML

Animation Pagani = Animationutils.loadanimation (this, r.anim.pag_anim); (view) pag.startanimation (Pagani);

Using Set to Create a more Complex procedural AnimationRotation transformation:going a Bit Too far with FXTweaking Transform values:the Ease of adjusting XML