从Android执行Shell命令

你应该获取su刚刚启动的进程的标准输入并在此处写下命令，否则你将使用current运行命令

UID

尝试这样的事情：

try{    Process su = Runtime.getRuntime().exec("su");    DataOutputStream outputStream = new DataOutputStream(su.getOutputStream());    outputStream.writeBytes("screenrecord --time-limit 10 /sdcard/MyVideo.mp4n");    outputStream.flush();    outputStream.writeBytes("exitn");    outputStream.flush();    su.waitFor();}catch(IOException e){    throw new Exception(e);}catch(InterruptedException e){    throw new Exception(e);}