ProgressView.java 文件源码

public void startAnimation(final int frameCount, final int duration) {
        Animation a = AnimationUtils.loadAnimation(getContext(), R.anim.progress_anim);
        a.setDuration(duration);
        a.setInterpolator(new Interpolator() {
            @Override
            public float getInterpolation(float input) {
//                return (float) Math.floor(input * frameCount) / frameCount;
                return input;
            }
        });
        startAnimation(a);
    }