2013.12.04 （7）——— android SlidingMenu之CustomAnimation
这个有3个例子，主要是介绍侧边栏显示时候的动画
public class CustomScaleAnimation extends CustomAnimation { public CustomScaleAnimation() { super(R.string.anim_scale, new CanvasTransformer() { @Override public void transformCanvas(Canvas canvas, float percentOpen) { canvas.scale(percentOpen, 1, 0, 0); } }); }}package com.jeremyfeinstein.slidingmenu.example.anim;import android.graphics.Canvas;import android.view.animation.Interpolator;import com.jeremyfeinstein.slidingmenu.example.R;import com.jeremyfeinstein.slidingmenu.example.R.string;import com.jeremyfeinstein.slidingmenu.lib.SlidingMenu.CanvasTransformer;public class CustomSlideAnimation extends CustomAnimation { private static Interpolator interp = new Interpolator() { @Override public float getInterpolation(float t) { t -= 1.0f; return t * t * t + 1.0f; } }; public CustomSlideAnimation() { // see the class CustomAnimation for how to attach // the CanvasTransformer to the SlidingMenu super(R.string.anim_slide, new CanvasTransformer() { @Override public void transformCanvas(Canvas canvas, float percentOpen) { System.out.println(canvas.getHeight()*(1-interp.getInterpolation(percentOpen))); canvas.translate(0, canvas.getHeight()*(1-interp.getInterpolation(percentOpen))); } }); }}package com.jeremyfeinstein.slidingmenu.example.anim;import android.graphics.Canvas;import com.jeremyfeinstein.slidingmenu.example.R;import com.jeremyfeinstein.slidingmenu.example.R.string;import com.jeremyfeinstein.slidingmenu.lib.SlidingMenu.CanvasTransformer;public class CustomZoomAnimation extends CustomAnimation { public CustomZoomAnimation() { // see the class CustomAnimation for how to attach // the CanvasTransformer to the SlidingMenu super(R.string.anim_zoom, new CanvasTransformer() { @Override public void transformCanvas(Canvas canvas, float percentOpen) { float scale = (float) (percentOpen*0.25 + 0.75); canvas.scale(scale, scale, canvas.getWidth()/2, canvas.getHeight()/2); } }); }}通过调用
sm.setBehindCanvasTransformer(mTransformer);
就可以显示自定义的动画了
