Android Install apk silently by busybox command-line

Question

I want to install .apk silently in background by BusyBox command. I`ve seen some similar questions like THIS, but I still cant get working my code properly...

I have

Answer 1

maybe this code will help you

Process p = null;
try
{
    p = Runtime.getRuntime().exec("su");
    DataOutputStream outs=new DataOutputStream(p.getOutputStream());

    String cmd="pm install /mnt/sdcard/app.apk";
    outs.writeBytes(cmd+"\n");
}
catch (IOException e)
{
    e.printStackTrace();
}