Java实现帧动画的实例代码

本文讲述了java实现帧动画的实例代码。分享给大家供大家参考，具体如下：

1、效果图

2、帧动画的简要代码

private imageview bganimview; 
 private animationdrawable manimationdrawable; 
//初始化 
 manimationdrawable = new animationdrawable(); 
 bganimview = new imageview(mcontext); 
 bganimview.setbackgrounddrawable(getanimationdrawable(manimationdrawable)); 
 params = new framelayout.layoutparams(viewgroup.layoutparams.wrap_content, viewgroup.layoutparams.wrap_content); 
 params.topmargin = util.div(176 + 58); 
 params.gravity = gravity.center_horizontal; 
 addview(bganimview, params); 
private animationdrawable getanimationdrawable(animationdrawable manimationdrawable) { 
 int duration = 50; 
 manimationdrawable.addframe(mcontext.getresources().getdrawable(r.drawable.loading1), duration); 
 manimationdrawable.addframe(mcontext.getresources().getdrawable(r.drawable.loading2), duration); 
 manimationdrawable.addframe(mcontext.getresources().getdrawable(r.drawable.loading3), duration); 
 manimationdrawable.setoneshot(false); 
 return manimationdrawable; 
 } 
 //动画开始 
 public void animloadingstart() { 
 this.setvisibility(view.visible); 
 if (manimationdrawable != null) { 
 manimationdrawable.start(); 
 } 
 } 
 //动画结束 
 public void animloadingend() { 
 if (manimationdrawable != null) { 
 manimationdrawable.stop(); 
 } 

3、扩展：

//x轴平移 
 public void animy(int y, int nexty, int duration) { 
 linearinterpolator ll = new linearinterpolator(); //匀速 
 objectanimator animator = objectanimator.offloat(yourview, "translationy", 0, 300);//300若为负值，就是向上平移 
 animator.setduration(duration); 
 animator.setinterpolator(ll); 
 animator.start(); 
 } 
//y轴平移 
 public void animx(int x, int nextx, int duration) { 
 linearinterpolator ll = new linearinterpolator(); 
 objectanimator animator = objectanimator.offloat(yourview, "translationx", x, nextx); 
 animator.setduration(duration); 
 animator.setinterpolator(ll); 
 animator.start(); 
 } 
//纵向压缩0.5倍 
 linearinterpolator ll = new linearinterpolator();//匀速 
 scaleanimation scaleanimation = new scaleanimation(1, 1, 1, 0.5f);//默认从（0,0） 
 scaleanimation.setduration(500); 
 scaleanimation.setinterpolator(ll); 
 scaleanimation.setfillafter(true); 
 chartview.startanimation(scaleanimation); 
//横向压缩0.5倍 
 linearinterpolator ll = new linearinterpolator(); 
 scaleanimation scaleanimation = new scaleanimation(1, 0.5f, 1, 1);//默认从（0,0） 
 scaleanimation.setduration(500); 
 scaleanimation.setinterpolator(ll); 
 scaleanimation.setfillafter(true); 
 chartview.startanimation(scaleanimation); 

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