Android app开发动画实战视频的相关内容

文章 2023-12-19 来自：开发者社区

Android App开发手机阅读中贝塞尔曲线的原理讲解及实现波浪起伏动画实战（附源码和演示视频可直接使用）

需要图片集和源码请点赞关注收藏后评论区留言~~~一、贝塞尔曲线的原理贝塞尔曲线是一种用于二维图形的数学曲线。贝塞尔曲线由节点和线段构成，其中节点是可拖动的支点，而线段彷佛有弹性的牛皮筋。它除了起点和终点之外，不再描绘中间的折现，而是构建一段运输小球的控制线，控制线本身在移动，然后小球随着在控制线上滑动，小球从起点运动到终点的轨迹便形成了贝塞尔曲线。贝塞尔曲线又可以分为以下三类1：一次贝塞尔曲线此....

文章 2023-12-19 来自：开发者社区

Android App开发动画特效之实现百叶窗动画和马赛克动画效果实战演示（附源码和演示视频可直接使用）

需要图片集和源码请点赞关注收藏后评论区留言~~~一、实现百叶窗动画合理运用图层规则可以实现酷炫的动画效果，比如把图片分割成一条一条，接着每条都逐渐展开，这便产生了百叶窗动画，把图片等分为若干小方格，然后逐次显示几个小方格，直至所有小方格都显示出来，便形成了马赛克动画。以百叶窗动画为例，首先定义一个百叶窗视图，并重写onDraw方法，给遮罩画布描绘若干矩形叶片，每次绘制的叶片大小由比率参数决定然后....

文章 2023-12-19 来自：开发者社区

Android App开发动画特效中插值器和估值器的讲解以及利用估值器实现弹幕动画实战（附源码和演示视频可直接使用）

需要图片集和源码请点赞关注收藏后评论区留言~~~一、插值器和估值器插值器用来控制属性值的变化速率，也可以理解为动画播放的速度，默认是先加速再减速。若要给动画播放指定某种速率形式，调用setInterpolator方法设置对应的插值器实现类即可，无论是补间动画，集合动画，属性动画还是属性动画组合，都可以设置插值器。估值器专用于属性动画，主要描述该属性的数值变化要采用什么单位，比如整数类型的渐变数值....

文章 2023-12-19 来自：开发者社区

Android App开发动画特效中帧动画和电影淡入淡出动画的讲解及实战（附源码和演示视频简单易懂）

需要图片集和源码请点赞关注收藏后评论区留言~~~一、帧动画Android的动画分为三类，帧动画，补间动画和属性动画。其中帧动画是实现原理最简单的一种，跟现实生活中的电影胶卷类似，都是在短时间内连续播放多张图片，从而模拟动态画面的效果。Android的帧动画由动画图形AnimationDrawable生成，下面是它的主要方法1：addFrame 添加一副图片帧2：setOneShot 设置是否只播....

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