安卓上的信息流,图片展示如何限宽不限高? - V2EX
ayqht

安卓上的信息流,图片展示如何限宽不限高?

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  •   ayqht Dec 18, 2015 13776 views
    This topic created in 3800 days ago, the information mentioned may be changed or developed.
    12 replies    2015-12-18 19:37:03 +08:00
    hahasong
        1
    hahasong  
       Dec 18, 2015
    android:width=30dp
    android:height = match_parent
    yuriko
        2
    yuriko  
       Dec 18, 2015
    信息流?
    Tneciv
        3
    Tneciv  
       Dec 18, 2015
    瀑布流?
    ayqht
        4
    ayqht  
    OP
       Dec 18, 2015
    @hahasong 这样不知道原图宽高比也可以吗
    zhouquanbest
        5
    zhouquanbest  
       Dec 18, 2015
    除非请求时 API 就先返回高宽比
    否则 ListView RecyclerView 等也没法知道要给你的图片预留多大的空间
    待图片异步加载完成 突然顶出那么大一块空间 很突兀

    类似于你逛个论坛 一帖子里全是图 刚往下翻一点 特么图片加载完又回退一段距离 体验非常差
    AtlantisZ
        6
    AtlantisZ  
       Dec 18, 2015
    肯定是 JSON API 返回高度的,都有个默认图片,然后慢慢加载的.
    kyze8439690
        8
    kyze8439690  
       Dec 18, 2015
    adjustBounds ?
    TJT
        9
    TJT  
       Dec 18, 2015 via Android
    @zhouquanbest 下载图片的话,一般 header 可以附上图片大小,或者下载前 128 位就可以分析出大小了。
    zhouquanbest
        10
    zhouquanbest  
       Dec 18, 2015
    @TJT
    我觉得最兼容的方式是 图片名+分辨率.格式 比如 av_1080*1960.jpg
    这样对 CDN 也很友好
    TJT
        11
    TJT  
       Dec 18, 2015 via Android
    @zhouquanbest 理想情况下是这样的,但是第三方图床一类的就很难控制了
    kzaemrio
        12
    kzaemrio  
       Dec 18, 2015
    写个定宽,高度 wrap_content ,然后 android:adjustViewBounds="true"
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