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moodasmood

android 如何后台截屏?

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  •   moodasmood May 12, 2019 15486 views
    This topic created in 2551 days ago, the information mentioned may be changed or developed.

    手机已经获取 root 权限了,尝试调用系统命令截屏 os = Runtime.getRuntime().exec("su").getOutputStream(); os.write(cmd.getBytes()); os.flush(); 这样确实拿到图片了,但是在安卓里面打开是黑的,在电脑上打开能看,安卓里面用 opencv 打开,尺寸是 0*0

    有没有大佬知道后台截屏有什么好的实现方案?另外,我截屏最好不保存磁盘,我程序里面还要对截屏图片进行处理,有办法吗?

    8 replies    2019-05-13 10:53:58 +08:00
    Davidwg
        1
    Davidwg  
       May 12, 2019
    这能把 android 用户艹成什么样了
    chenoe
        2
    chenoe  
       May 12, 2019 via Android
    不能先保存再处理么
    qq292382270
        3
    qq292382270  
       May 12, 2019
    1.root 情况下可以用 "/system/bin/screencap -p filepath"获取截图. 执行成功后再读取到内存中, 然后删掉图片即可. 不过不建议.
    2.安卓 5.0+可以用 MediaProjectionManager 获取
    ZhangSanAleph
        4
    ZhangSanAleph  
       May 12, 2019
    可以用 screencap 截图,不需要 root,adb 进入手机就行。
    iwtbauh
        5
    iwtbauh  
       May 12, 2019 via Android
    @chenoe
    @qq292382270

    完全没有必要,输出到标准输出然后读就行了。写入闪存即慢( IO )又影响闪存寿命
    cuzfinal
        6
    cuzfinal  
       May 13, 2019
    你想干什么
    moodasmood
        7
    moodasmood  
    OP
       May 13, 2019
    @iwtbauh 能贴个 demo 吗,我尝试不输出到文件,但是拿不到返回
    moodasmood
        8
    moodasmood  
    OP
       May 13, 2019
    @cuzfinal 入坑手游,想自己写个挂机脚本而已。。。。按键精灵广告太多,不想用
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