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Android 自定义坐标曲线图（二）

https://developer.aliyun.com/article/1382625?spm=a2c6h.13148508.setting.14.74ce4f0el8Q6l2 继上一篇文章，点击折线图上的点，显示提示信息进行修改，之前通过回调，调用外部方法，使用popupwindow或dialo...

Android 自定义坐标曲线图

先看效果项目开发中，被安排去调研实现坐标曲线图，网上第三方的库很多，可以实现，但是有些样式无法做到符合自己要求，Android 与iOS效果上也存在差异，所以自己自定义了一个；其实比较简单，就是画点，画线，画虚线，画曲线，添加点击事件即可；这里面需要涉及到的知识点主要是有：对自定义View有一点...

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Android：自定义沿着曲线轨迹移动

前言前几天，后台有老铁留言，说有个需求，画两条曲线，中间是一个小球，沿着两条线中间的轨迹从左往右移动，让提供个思路，做为一个极度宠粉的博主，思路不仅要提供，实现方案也必须要给出，在互联网中玩的就是真实！今天的文章大致如下：1、最终...

Android 9.0 亮度调节的变化(伽马曲线)

平台 RK3399 + Android 9.0概述众所周知, Android 平台的上层亮度值的设置值范围为[0, 255], 在9.0之前, 亮度调节一直是线性变化, 在9.0开始, 它变成了曲线变化, 如下图: 图1-实际亮度值: 11 ...

几条曲线构建Android表白程序

每年的情人节和七夕，甜蜜与痛苦的日子，做点什么好呢？写诗画画送礼物，逛街吃饭看电影？作为搬砖爱好者，写个表白脚本或者动画什么的吧。想起之前看到的一段Ｈ5动画，在Android平台“临摹”了一遍。效果如下图：其构图还是比较简单的，树枝加上由心形花瓣构成的心形树冠（后面做成动画之后会有随机的花瓣飘落）。...

Bezier曲线在Android动画中的应用

Android动画的开发中，为了达到更加酷炫的效果，常常需要自定义运动轨迹，或者绘制花式复杂的曲线，这正是Bezier曲线大显神通的地方，本文将带你了解Bezier曲线在Android开发中的一些应用。 1. Bezier曲线简介贝塞尔曲线(Bézier curve)，又称贝兹曲线或贝济埃曲线，是...

Android绘图机制（二）——自定义View绘制形, 圆形, 三角形, 扇形, 椭圆, 曲线,文字和图片的坐标讲解

Android绘图机制（二）——自定义View绘制形, 圆形, 三角形, 扇形, 椭圆, 曲线,文字和图片的坐标讲解我们要想画好一些炫酷的View，首先我们得知道怎么去画一些基础的图案，比如矩形，圆形，三角形，多边形等…. 新建一个项目然后我们创建一个listview,每个图案一个Activit...

Android统计图表MPAndroidChart：为多条统计折线动态更新数据，以高温低温曲线为例【7】

Android统计图表MPAndroidChart：为多条统计折线动态更新数据，以高温低温曲线为例【7】本文在附录文章6的基础上，为Android统计图表MPAndroidChart的同一个LineChart中同时增加两条统计折线，动态的为这两条折线同时增加数据并更新结果。典型的，以天气预报...

Android利用canvas画各种图形(点、直线、弧、圆、椭圆、文字、矩形、多边形、曲线、圆角矩形)

1、首先说一下canvas类： Class Overview The Canvas class holds the "draw" calls. To draw something, you need 4 basic components: A Bitmap to hold the pixels, a...

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