Checks device for Super User permission - Android App

Android examples for App:Manifest

  1. HOME
  2. Android
  3. App
  4. Manifest

Description

Checks device for Super User permission

Demo Code


import android.content.Context;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.SystemProperties;
import android.util.Log;
import android.widget.Toast;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Date;

public class Main{
    private static final String TAG = Thread.currentThread().getStackTrace()[1].getClassName();
    /**// ww  w.j a va  2  s. co m
     * Checks device for SuperUser permission
     *
     * @return If SU was granted or denied
     */
    @SuppressWarnings("MethodWithMultipleReturnPoints")
    public static boolean checkSu() {
        if (!new File("/system/bin/su").exists()
                && !new File("/system/xbin/su").exists()) {
            Log.e(TAG, "su binary does not exist!!!");
            return false; // tell caller to bail...
        }
        try {
            if (CMDProcessorAOKP.runSuCommand("ls /data/app-private").success()) {
                Log.i(TAG, " SU exists and we have permission");
                return true;
            } else {
                Log.i(TAG, " SU exists but we don't have permission");
                return false;
            }
        } catch (NullPointerException e) {
            Log.e(TAG, "NullPointer throw while looking for su binary", e);
            return false;
        }
    }
}

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