动画

本文演示了如何使用 Aspose.Slides for Java 创建简单动画并管理其顺序。

添加动画

创建一个矩形形状并应用在单击时触发的淡入淡出效果。

static void addAnimation() {
    Presentation presentation = new Presentation();
    try {
        ISlide slide = presentation.getSlides().get_Item(0);

        IAutoShape shape = slide.getShapes().addAutoShape(ShapeType.Rectangle, 50, 50, 100, 100);

        // 淡入淡出效果。
        slide.getTimeline().getMainSequence().addEffect(
                shape, EffectType.Fade, EffectSubtype.None, EffectTriggerType.OnClick
        );
    } finally {
        presentation.dispose();
    }
}

访问动画

从幻灯片时间轴检索第一个动画效果。

static void accessAnimation() {
    Presentation presentation = new Presentation();
    try {
        ISlide slide = presentation.getSlides().get_Item(0);

        IAutoShape shape = slide.getShapes().addAutoShape(ShapeType.Rectangle, 50, 50, 100, 100);
        slide.getTimeline().getMainSequence().addEffect(
                shape, EffectType.Fade, EffectSubtype.None, EffectTriggerType.OnClick);

        // 访问第一个动画效果。
        IEffect effect = slide.getTimeline().getMainSequence().get_Item(0);
    } finally {
        presentation.dispose();
    }
}

移除动画

从序列中移除动画效果。

static void removeAnimation() {
    Presentation presentation = new Presentation();
    try {
        ISlide slide = presentation.getSlides().get_Item(0);

        IAutoShape shape = slide.getShapes().addAutoShape(ShapeType.Rectangle, 50, 50, 100, 100);
        IEffect effect = slide.getTimeline().getMainSequence().addEffect(
                shape, EffectType.Fade, EffectSubtype.None, EffectTriggerType.OnClick);

        // 删除效果。
        slide.getTimeline().getMainSequence().remove(effect);
    } finally {
        presentation.dispose();
    }
}

序列动画

添加多个效果并演示动画执行的顺序。

static void sequenceAnimations() {
    Presentation presentation = new Presentation();
    try {
        ISlide slide = presentation.getSlides().get_Item(0);

        IAutoShape shape1 = slide.getShapes().addAutoShape(ShapeType.Rectangle, 50, 50, 100, 100);
        IAutoShape shape2 = slide.getShapes().addAutoShape(ShapeType.Ellipse, 200, 50, 100, 100);

        ISequence sequence = slide.getTimeline().getMainSequence();
        sequence.addEffect(shape1, EffectType.Fly, EffectSubtype.Bottom, EffectTriggerType.OnClick);
        sequence.addEffect(shape2, EffectType.Fly, EffectSubtype.Bottom, EffectTriggerType.OnClick);
    } finally {
        presentation.dispose();
    }
}