Android内存优化-阿里云

Android内存优化-Bitmap内存优化为什么Bitmap需要高效加载？在日常开发中，我们不免会使用到Bitmap,而bitmap确实实在在的是内存使用的 “大户”，如何更好的使用 bitmap,减少其对 App内存的使用，是我们开发中不可回避的问题。为了解决这个问题，就出现了Bitmap 的高效加载策略。其实核心思想很简单。假设通过In...

Android | App内存优化之全面理解MAT **本文以上一篇博客《Android | App内存优化之内存泄漏要点概述以及解决实战》获得的堆转储文件为例，介绍一下MAT工具；****MAT工具上侧有一系列的可选项，现在看一下第一项，OverView，也就是一个概览信息，第一行是大小、Class对象、Object的数量、类加载器等等，...

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Android | App内存优化之内存泄漏要点概述以及解决实战本文目录：内存泄漏的定义、表现、危害、情景，及避免OOM的技巧Memory Analyzer Tool(MAT)简述、下载、安装内存泄漏解决实战解决方法小结内存泄漏的定义、表现、危害、情景，及避免OOM的技巧定义**Android内存泄漏指的是进程中某些对象（垃圾对象）已经没有使用价值了，但是它们却...

Android | App内存优化之内存抖动解决实战本文的精简总结在文首的Pre、文末的小结以及解决技巧处！！！Pre定义：内存频繁分配和回收导致内存不稳定**明显特征：频繁GC、Memory Profiler 内存分配图形曲线呈锯齿状、CPU Profiler的Call Chart 栏下反复出现的绿色条形**危害：导致卡顿、OOM内存抖动导致O...

Android | App内存优化之 JVM & Android内存管理机制及GC机制（拓展.GCRoot） Java内存分配在java语言中，可作为GCRoot的对象包括以下几种：虚拟机栈中引用的对象，主要是指栈帧中的本地变量本地方法栈中Native方法引用的对象方法区中类静态属性引用的对象方法区中常量引用的对象GCRootJVM判断引用失效，可达性分析是否可以解决循环引用要点提炼| 理解JVM之GC&a...

Android | App内存优化之内存问题及相关工具概述背景内存是大问题但普遍缺乏关注内存问题比较隐蔽，表现不明显；内存问题相对复杂，内存问题不是孤立的，它是一个累积的过程；内存问题内存抖动：工具内存图显现锯齿状；导致GC频繁，进而导致程序卡顿；**内存泄漏：可用内存逐渐减少；如果程序没有内存，还是要申请内存的话，程序就会企图通过GC回收得到内存，如此可...

【Android 内存优化】自定义组件长图组件 ( 长图滚动区域解码 | 手势识别 GestureDetector | 滑动计算类 Scroller | 代码示例 ) 文章目录一、GestureDetector 创建与设置二、GestureDetector 触摸事件传递三、触摸滑动操作四、惯性滑动操作五、长图滑动组件代码示例六、运行效果七、源码及资源下载官方文档 API : BitmapRegionDecoder在【Android 内存优化】自定义组件长图组件 (...

【Android 内存优化】自定义组件长图组件 ( 获取图像宽高 | 计算解码区域 | 设置图像解码属性复用像素格式 | 图像绘制 ) 文章目录一、获取图像真实宽高二、计算解码区域三、设置解码参数内存复用像素格式四、图像绘制五、执行效果六、源码及资源下载官方文档 API : BitmapRegionDecoder在【Android 内存优化】自定义组件长图组件 ( 自定义组件构造方法 ) 基础上继续开发 ;一、获取图像真实宽高显...

【Android 内存优化】自定义组件长图组件 ( 自定义组件构造方法 ) 文章目录一、自定义组件构造方法简介1、View(Context context) 构造函数2、View(Context context, @Nullable AttributeSet attrs)3、View(Context context, @Nullable AttributeSet attrs...

【Android 内存优化】Bitmap 长图加载 ( BitmapRegionDecoder 简介 | BitmapRegionDecoder 使用流程 | 区域解码加载示例 ) 文章目录一、BitmapRegionDecoder 简介二、图片信息三、BitmapRegionDecoder 对象创建四、解码图像五、图像区域解码示例六、源码及资源下载一、BitmapRegionDecoder 简介官方文档 API : BitmapRegionDecoderBitmapRegio...

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