如何从Java在Android设备上运行adb screenrecord并结束屏幕记录？ [英] How to can I run adb screenrecord on a Android Device from Java and end the screenrecording?

问题描述

如何在 Android 设备上运行 adb shell screenrecord 来自 Java 并结束 screenrecording ？

目前我必须指定 - 时间限制结束录制。如果我尝试在结束之前捕获视频，则失败。

有没有办法告诉adb停止录制？有没有办法配置线程将 CTRL-C 发送到 shell 命令？

这是在无根电话上运行。

代码

  videoExecutor.submit（（） - > {
 //开始录制视频
 String recordVideo =screenrecord --time-limit + testRun.getVideoLength（）++/ sdcard /+ logDate +。mp4; 
 try {
 device.executeShell（recordVideo）; 
} catch（异常e1） {
 e1.printStackTrace（）; 
} 
 sleep（testRun.getVideoLength（）* ONE_SECOND + TWO_SECONDS）; //必须匹配--time-limit以上。
 
 RemoteFile remote = new RemoteFile（/ sdcard /+ logDate +。mp4）; 
 File local = new File（videoPath）; //将文件保存到本地机器
 if（！ local.getParentFile（）。exists（））{
 local.getParentFile（）。mkdirs（）; 
} 
 
 try {
 //从手机复制视频到电脑
 try {
 device.pull（remote，local）; 
} catch（例外e）{
 e.printStackTrace（）; 
} 
} catch（异常e）{
 // TODO自动生成的catch块
 e.printStackTrace（）; 
} 
 
}）; 
  

解决方案

发送 SIGINT 或 SIGHUP 到 screenrecord 进程会导致它停止录制。

我刚刚在2个单独的 adb shell 会话中尝试了以下的无根（Android 6.0手机）电话：

in会话＃1：

  screenrecord /sdcard/Movies/test.mpg 
   
 
 
：
  pkill -INT screenrecord 
  
并且 screenrecord 捕获在发出 pkill 命令
 
How to can I run adb shell screenrecord on a Android Device from Java and end the screenrecording?

Currently I have to specify the --time-limit to end the recording.  If I try to capture the video prior to it ending it fails.

Is there a way to tell adb to stop recording?  Is there a way to configure the thread to send a CTRL-C to the shell command?

This is to be run on unrooted phones.

Code
videoExecutor.submit(() -> {
          //Start recording video
        String recordVideo = "screenrecord --time-limit " + testRun.getVideoLength() + " " + "/sdcard/" + logDate + ".mp4";
    try {
      device.executeShell(recordVideo);
  } catch (Exception e1) {
    e1.printStackTrace();
  }
    sleep(testRun.getVideoLength()*ONE_SECOND + TWO_SECONDS);  //gotta match the --time-limit above.

RemoteFile remote = new RemoteFile("/sdcard/" + logDate + ".mp4");
File local = new File(videoPath); //Save file to local machine
          if(!local.getParentFile().exists()) {
              local.getParentFile().mkdirs();
          }

    try {
      //Copy video from phone to computer
        try {
                  device.pull(remote, local);
              } catch (Exception e) {
                  e.printStackTrace();
              }
  } catch (Exception e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
  }

      });

解决方案
Sending either SIGINT or SIGHUP to screenrecord process would cause it to stop recording.

I just tried the following on unrooted (stock Android 6.0) phone in 2 separate adb shell sessions:

in session #1:
screenrecord /sdcard/Movies/test.mpg
in session #2:
pkill -INT screenrecord
and the screenrecord capture stopped after issuing the pkill command

                        
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