Determine if current device has been rooted - Android Hardware

Android examples for Hardware:Device Feature

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Description

Determine if current device has been rooted

Demo Code


//package com.java2s;
import android.os.Build;
import java.io.BufferedReader;
import java.io.File;
import java.io.InputStreamReader;

public class Main {
    /**/*from   ww w.  j  a  v  a 2  s  . com*/
     * Determine if current device has been rooted
     * written by Kevin Kowalewski, found here: http://stackoverflow.com/a/8097801/5109549
     * @return true if rooted.
     */
    public static String isDeviceRooted() {
        return String.valueOf(checkRootMethod1() || checkRootMethod2()
                || checkRootMethod3());
    }

    private static boolean checkRootMethod1() {
        String buildTags = Build.TAGS;
        return buildTags != null && buildTags.contains("test-keys");
    }

    private static boolean checkRootMethod2() {
        String[] paths = { "/system/app/Superuser.apk", "/sbin/su",
                "/system/bin/su", "/system/xbin/su", "/data/local/xbin/su",
                "/data/local/bin/su", "/system/sd/xbin/su",
                "/system/bin/failsafe/su", "/data/local/su" };
        for (String path : paths) {
            if (new File(path).exists())
                return true;
        }
        return false;
    }

    private static boolean checkRootMethod3() {
        Process process = null;
        try {
            process = Runtime.getRuntime().exec(
                    new String[] { "/system/xbin/which", "su" });
            BufferedReader in = new BufferedReader(new InputStreamReader(
                    process.getInputStream()));
            if (in.readLine() != null)
                return true;
            return false;
        } catch (Throwable t) {
            return false;
        } finally {
            if (process != null)
                process.destroy();
        }
    }
}

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