Android绘图_第3页-阿里云

请问Android Canvas绘图填充问题，有专门的填充函数（方法）吗？

已经使用paint画了一个封闭矩形，接下来目的是点击一下该区域后直接填充为所选颜色。注意：不是直接画一个填充好的。要用stroke和fill吗？

【Android开发】图形图像处理技术-常用绘图类之Canvas类

Canvans类代表画布，通过该类提供的方法，可以绘制各种图形(如矩形、圆形和线条等)。通常情况下，要在Android中绘图，需要先创建一个继承自View类的视图，并且在该类中重写onDraw(Canvas canvas)方法，然后在显示绘图的Activity中添加该视图。下面通过一个具体的实例来...

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Android游戏之文件读写类和绘图类设计

Android游戏之文件读写类和绘图类设计 1、基础知识： A. FileInputStream http://developer.android.com/reference/java/io/FileInputStream.htmlB. FileOutputStreamhttp://d...

Android绘图监听接口OnPreDrawListener详解

public static interface ViewTreeObserver.OnPreDrawListener 我们先看下API中的定义：类概述：为即将绘制视图树时执行的回调函数定义的接口. 共有方法： public abstract boolean onPreDraw ()即将...

android学习之绘图

android绘图的基础类：Paint,Canvas,Bitmap,BitmapFactory类 1 Paint 画笔用于定义画笔的大小宽度,颜色，阴影，风格，路径效果等。 2 Canvas 画布调节好画笔后主要通过它来画图。 3 Bitmap 位图一般包含创建位图，变换，保存等。 4 Bit...

Android学习之绘图入门

Android的绘图继承于View组件，重写onDraw(Canvas canvas) 方法时涉及一个绘图API: Canvas 代表了依附于指定View的画布，并且提供了很多绘制方法。 Canvas提供的方法还涉及一个API: Paint ,Paint代表了Canvas上的画笔，主要用于设置绘制风...

Android手指绘图(一)

package cn.c; import java.io.OutputStream; import android.app.Activity; import android.content.Intent; import android.graphics.Bitmap; import android....

Android手指绘图(二)

package cn.c; import android.app.Activity; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Color; import andro...

【android入门】之Android Canvas绘图抗锯齿解决方法

对于Android来说Canvas一般大量用于自定义View和游戏开发中，对于图形的基础绘制类，提供的drawText、drawBitmap以及drawCircle都需要抗锯齿处理才能让人满意，下面Android123将他们分为两大种情况。一、包含Paint参数情况时，对于drawTe...

Android SurfaceView 绘图覆盖刷新及“.NET研究”脏矩形刷新方法

　　SurfaceView在Android中用作游戏开发是最适宜的，本文就将演示游戏开发中常用的两种绘图刷新策略在SurfaceView中的实现方法。　　首先我们来看一下本例需要用到的两个素材图片：　　bj.jpg就是一个渐变图，用作背景。　　question.png是一个半透明的图像，我们希...

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