Android动画笔记

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视图动画

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/透明度动画
    public void btnAlpha(View view) {
        AlphaAnimation aa = new AlphaAnimation(0, 1);
        aa.setDuration(1000);//播放时长
        view.startAnimation(aa);
    }
  //旋转动画
    public void btnRotate(View view) {
        RotateAnimation ra = new RotateAnimation(0, 360, 0, 0);
		//旋转的开始角度，旋转的结束角度，x坐标，y坐标，(0,0)在左上角
        ra.setDuration(1000);
        view.startAnimation(ra);
    }
    public void btnRotateSelf(View view) {
        RotateAnimation ra = new RotateAnimation(0, 360,
                RotateAnimation.RELATIVE_TO_SELF, 0.5F,
                RotateAnimation.RELATIVE_TO_SELF, 0.5F);//0.5F代表偏移值
        ra.setDuration(1000);
        view.startAnimation(ra);
    }
//位移动画
    public void btnTranslate(View view) {
        TranslateAnimation ta = new TranslateAnimation(0, 200, 0, 300);//这里意思是从(0,0)位移到(200,300)
        ta.setDuration(1000);
        view.startAnimation(ta);
    }
//缩放动画
    public void btnScale(View view) {
        ScaleAnimation sa = new ScaleAnimation(0, 2, 0, 2);//这里意思是从(0,0)拉伸到(2，2)
        sa.setDuration(1000);
        view.startAnimation(sa);
    }
    public void btnScaleSelf(View view) {
        ScaleAnimation sa = new ScaleAnimation(0, 1, 0, 1,
                Animation.RELATIVE_TO_SELF, 0.5F,
                Animation.RELATIVE_TO_SELF, 0.5F);
        sa.setDuration(1000);
        view.startAnimation(sa);
    }
//多个动画合并
    public void btnSet(View view) {
        AnimationSet as = new AnimationSet(true);
        as.setDuration(1000);
        AlphaAnimation aa = new AlphaAnimation(0, 1);
        aa.setDuration(1000);
        as.addAnimation(aa);
        TranslateAnimation ta = new TranslateAnimation(0, 100, 0, 200);
        ta.setDuration(1000);
        as.addAnimation(ta);
        view.startAnimation(as);
    }

相对于的监听

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public void btnAlpha(View view) {
      AlphaAnimation aa = new AlphaAnimation(0, 1);
      aa.setDuration(1000);//播放时长
      aa.setAnimationListener(new Animation.AnimationListener() {
          @Override
          public void onAnimationStart(Animation animation) {
              Log.e("动画", "开始" );
          }
          @Override
          public void onAnimationEnd(Animation animation) {
              Log.e("动画", "结束" );
          }
          @Override
          public void onAnimationRepeat(Animation animation) {
              Log.e("动画", "重复" );
          }
      });
      view.startAnimation(aa);
  }

属性动画