run As Root Async - Android Android OS

Android examples for Android OS:Shell

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Description

run As Root Async

Demo Code


import android.util.Log;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;

public class Main{
    private static final String TAG = RootHelpers.class.toString();
    public static Process runAsRootAsync(String[] cmds,
            final Task.OnMessageListener listener) throws IOException {

        final Process su = Runtime.getRuntime().exec("su");

        DataOutputStream os = new DataOutputStream(su.getOutputStream());
        for (String tmpCmd : cmds) {
            System.out.println("\n> Running command: " + tmpCmd);
            os.writeBytes(tmpCmd + "\n");
            os.flush();// w w w  . ja v a2s.c o  m
        }
        os.writeBytes("exit\n");
        os.flush();

        if (listener != null) {
            Log.i(TAG, "Spawning a new Listener Thread");
            final BufferedReader reader = new BufferedReader(
                    new InputStreamReader(su.getInputStream()));
            //Spawn a thread that do reads and send the output to our listener!
            new Thread(new Runnable() {
                Process mProcess = su;

                @Override
                public void run() {
                    Log.i(TAG, "Reader thread started");
                    android.os.Process
                            .setThreadPriority(android.os.Process.THREAD_PRIORITY_BACKGROUND);
                    String line = "";
                    try {
                        while ((line = reader.readLine()) != null) {
                            Log.i(TAG, line);
                            listener.onMessage(line);
                        }
                        Log.i(TAG, "Reader thread exiting:" + reader);
                    } catch (IOException e) {
                        Log.i(TAG, "Error reading output:" + e.toString());
                    }
                }
            }).start();
        } else
            Log.i(TAG, "No listener");

        return su;
    }
}

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