简单的流光效果

效果

代码

"ui";

ui.layout(
    <vertical gravity="center" bg="#000000">
        <frame layout_width="250dp" layout_height="150dp" >
            <card layout_width="match_parent" layout_height="match_parent" cardCornerRadius="0dp" cardBackgroundColor="#000000" >
                <frame id="middle_view" layout_gravity="center" layout_width="{{device.width}}dp" layout_height="300dp" >
                    <linear layout_gravity="center|top" backgroundColor="#44cef6" layout_width="match_parent" layout_height="146dp" />
                    <linear layout_gravity="center" backgroundColor="#ffffff" layout_width="match_parent" layout_height="8dp" />
                    <linear layout_gravity="center|bottom" backgroundColor="#56004f" layout_width="match_parent" layout_height="146dp" />
                </frame>
            </card>
            <card layout_width="240dp" layout_height="140dp" cardCornerRadius="0dp" cardBackgroundColor="#000000" layout_gravity="center">
                <text text="R L B" textColor="#ffffff" gravity="center"/>
            </card>
        </frame>
    </vertical>
);
smoothRotation(ui.middle_view, 3000, 0, 360)

/**
 * 实现视图旋转
 *
 * @param view          要旋转的视图对象
 * @param frequency     旋转周期（以毫秒为单位），即每次旋转的持续时间
 * @param clockwise     顺时针旋转的起始角度（以度为单位）
 * @param anticlockwise 逆时针旋转的结束角度（以度为单位）
 */
function smoothRotation(view, frequency, clockwise, anticlockwise) {
    importClass(android.animation.ObjectAnimator);
    importClass(android.animation.ValueAnimator);
    importClass(android.view.animation.LinearInterpolator);

    animator = ObjectAnimator.ofFloat(view, "rotation", clockwise, anticlockwise);
    animator.setDuration(frequency);
    animator.setInterpolator(new LinearInterpolator());
    animator.setRepeatCount(ObjectAnimator.INFINITE);
    animator.start();
}