Android Paint-阿里云

Android自定义View工具：Paint&Canvas(二)

接上篇，Android自定义View工具：Paint&Canvas(一)，上篇主要介绍的是Paint，本篇接着来看Canvas。Canvas常用方法一览：Canvas常用方法备注绘制颜色 drawARGB通过设置ARGB值绘制颜色drawRGB通过设置RGB值绘制颜色drawColor绘制颜...

Android自定义View工具：Paint&Canvas(一)

安卓的graphics提供了2D图形各种绘制工具，如Canvas(画布), color filters(颜色过滤器), points(点), rectangles(矩形)等，利用这些工具可以直接在界面上进行绘制。本文主要讲的是自定义View时我们经常用到的Canvas和Paint，像平时画画一样，我...

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Android Paint 抗锯齿画线模糊

背景Android 开发过程中, 或多或少会遇到需要使用自定义控件的情况, 而Paint作为画笔, 在整个开发过程中有着至关重要的地位, 用好它, 能让自定义控件展示出你期望的效果, 用不好… 或许会抱怨, 这平台/这工具/这类怎么设计得如此难用.就如同本文将要阐述的问题, 希望能给遇到相似问题的朋...

Android Paint ANTI_ALIAS_FLAG 引起的一个小问题

平台RK3399 + Android 8.1问题代码中, 屏幕分辨率为1024x600, 自定义View的尺寸为300x300, 在窗口居中显示.自定义View绘制的顺序为:绘制白色背景-Canvas.drawColor绘制黑色矩形-Canvas.drawRect绘制红色交叉线, 分别为左上-右下 ...

android自定义控件-paint详解

github代码（所在分支paint）github.com/ananananzhu…Paint Api介绍设置画笔颜色public void setColor(@ColorInt int color) 复制代码设置画笔宽度paint.setStrokeWidth(10) 复制代码在画笔宽度为0的情况...

【Android 应用开发】Paint 图形组合 Xfermod 之合成模式表示方法 ( Xfermod 使用步骤 | 透明度颜色值公式表示方法 | 老版本表示方法 | 合成区域分块 )

Xfermod 使用步骤Xfermod 使用步骤 :① 创建画笔 : 注意 , 绘制源图像和目标图像 , 以及设置 Xfermod 图形组合模式 , 使用的都是这个画笔 ;//创建画笔 Paint paint = new Paint();② 绘制目标图像 ( Destination Imag...

【Android 应用开发】Paint 图形组合 Xfermod 简介 ( 图形组合集合描述 | Xfermod 简介 | PorterDuff 简介 )

图形组合集合描述图形组合集合描述 :1.下面我们先描述两个集合 :① 集合 A : 由像素点组成的集合 A , 每个像素点都有颜色值和位置属性 ; 像素点组成的图形如下 :② 集合 B : 由像素点组成的集合 B , 每个像素点都有颜色值和位置属性 ; 像素点组成的图形如下 :2.绘...

【Android 应用开发】Paint 渲染之 BitmapShader 位图渲染 ( 渲染流程 | CLAMP 拉伸最后像素 | REPEAT 重复绘制图片 | MIRROR 绘制反向图片 )（二）

( 2 ) 位图渲染 REPEAT 拉伸代码示例及效果 ( 绘制超出图片边界时, 就会绘制同样的图片填充剩余部分 )REPEAT 拉伸 :1.REPEAT 说明 : 在创建 BitmapShader 的时候, 设置其水平和垂直方向的拉伸方式为 Shader.TileMode.REP...

【Android 应用开发】Paint 渲染之 BitmapShader 位图渲染 ( 渲染流程 | CLAMP 拉伸最后像素 | REPEAT 重复绘制图片 | MIRROR 绘制反向图片 )（一）

1. 位图渲染 BitmapShader 简介( 1 ) 位图渲染综述 ( ① 三种方式 : Shader.TileMode.CLAMP | Shader.TileMode.REPEAT | Shader.TileMode.MIRROR | ② 流程 : 创建 Shader | 设置 Shader ...

Android 的Paint（画笔）及Canvas（画布）? 400 报错

Android 的Paint（画笔）及Canvas（画布）? 400 报错要绘图，首先得调整画笔，待画笔调整好之后，再将图像绘制到画布上，这样才可以显示在手机屏幕上。Android 中的画笔是 Paint类，Paint 中包含了很多方法对其属性进行设置，主要方法如下： s...

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