Android Animation --- 无限360度旋转

来源：互联网发布：多玩魔兽数据库编辑：程序博客网时间：2024/06/16 00:09

做过重复360度旋转的就知道，到达终点是略有卡顿/停顿

查看Animation.java源码

    /**     * Gurantees that this animation has an interpolator. Will use     * a AccelerateDecelerateInterpolator is nothing else was specified.     */    protected void ensureInterpolator() {        if (mInterpolator == null) {            mInterpolator = new AccelerateDecelerateInterpolator();        }    }

发现默认使用的是加速插补器，所以到达终点出现卡顿/停顿，就是它导致的，更改为匀速的插补器即可

代码如下：

ObjectAnimator rotation = ObjectAnimator.ofFloat(hwLogoTurn, "rotation", 0f, 359f);//最好是0f到359f，0f和360f的位置是重复的rotation.setRepeatCount(ObjectAnimator.INFINITE);rotation.setInterpolator(new LinearInterpolator());rotation.setDuration(5000);rotation.start();

现在可以优哉游哉的跑了

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