Android using Super User Permissions ? allowing access

Question

im trying to find the method behind having superuser access on android devices. basically i want my app to be able to remove system files, and so asking the user if its ok a

Answer 1

If the device is rooted, you can use the following code to gain access to a root shell:

    try
    {
        Process process = Runtime.getRuntime().exec("su");
        DataOutputStream outputStream = new DataOutputStream(process.getOutputStream()); 
        DataInputStream inputStream = new DataInputStream(process.getInputStream());

        outputStream.writeBytes(command + "\n");
        outputStream.flush();

        outputStream.writeBytes("exit\n"); 
        outputStream.flush(); 
        process.waitFor();
    }
    catch (IOException e)
    {
        throw new Exception(e);
    }
    catch (InterruptedException e)
    {
        throw new Exception(e);
    }

Where "command" is the command that you want to execute.