关于 fresco 的正确用法,为啥内存占用这么多呢 - V2EX
WenhaoWu

关于 fresco 的正确用法,为啥内存占用这么多呢

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  •   WenhaoWu Jan 28, 2016 17834 views
    This topic created in 3756 days ago, the information mentioned may be changed or developed.

    最近学 mvp 撸了个小 demo 用来下载每日必应壁纸,
    地址: https://github.com/WenhaoWu/BingWallpaper

    图省事所以直接用 fresco 来展示图片,但不解为何图片加载后内存占用其高,分分钟上 100MB 啊

    翻了翻文档 fresco 有个 pipe 应该自己会 GC 和优化内存的啊,求解答。
    顺便求 github star :)

    7 replies    2016-01-29 16:11:16 +08:00
    naiyu
        1
    naiyu  
       Jan 29, 2016
    表示关注这个问题。我使用 fresco 的时候,有时候会出现 oom 的情况
    kzaemrio
        2
    kzaemrio  
       Jan 29, 2016
    换个 5.0 以下的手机试试看内存如何?
    WenhaoWu
        3
    WenhaoWu  
    OP
       Jan 29, 2016
    @kzaemrio 神奇了, 4.4 的手机内存占用少很多啊,到底是怎么回事??
    4.4 内存图片:
    https://raw.githubusercontent.com/WenhaoWu/BingWallpaper/master/Demo_Pics/memory4_4.png
    5.0 内存图片:
    https://raw.githubusercontent.com/WenhaoWu/BingWallpaper/master/Demo_Pics/memory5_0.png
    saberpowermo
        4
    saberpowermo  
       Jan 29, 2016
    试试 Glide. 感觉 Gilde 在内存管理上还是不错的
    kzaemrio
        5
    kzaemrio  
       Jan 29, 2016
    fresco 文档:

    在 5.0 以下系统, Bitmap 缓存位于 ashmem ,这样 Bitmap 对象的创建和释放将不会引发 GC ,更少的 GC 会使你的 APP 运行得更加流畅

    5.0 及其以上系统,相比之下,内存管理有了很大改进,所以 Bitmap 缓存直接位于 Java 的 heap 上
    WenhaoWu
        6
    WenhaoWu  
    OP
       Jan 29, 2016
    @kzaemrio 了解了,就是说其实在 4.4 上内存占用还是一样多,只不过用的是匿名内存,相当于跟系统共享内存,所以没有展示出来
    WenhaoWu
        7
    WenhaoWu  
    OP
       Jan 29, 2016
    @saberpowermo 不错,还可以跟 volley 来套组合拳
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