Android 设备 root 检查

Question

我想检查我的设备是否已获得 root 权限。当我在没有 root 的真实设备中尝试下面的代码时，没问题。但是非 root 模拟器在这一行中中断

if (new File(path).exists())
    return true;

“/system/xbin/su”路径存在。

private static boolean isRooted() {
    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", "/su/bin/su"};
    for (String path : paths) {
        if (new File(path).exists())
            return true;
    }
    return false;
}

Genymotion 或 Android studio 的模拟器总是在代码块中中断。

是否所有的 android 模拟器都已 root？

Answer 1

您可以通过以下方法检查设备是否已root:

public static boolean isRootedDevice(Context context) {

    boolean rootedDevice = false;
    String buildTags = android.os.Build.TAGS;
    if (buildTags != null && buildTags.contains("test-keys")) {
        Log.e("Root Detected", "1");
        rootedDevice = true;
    }

    // check if /system/app/Superuser.apk is present
    try {
        File file = new File("/system/app/Superuser.apk");
        if (file.exists()) {
            Log.e("Root Detected", "2");
            rootedDevice = true;
        }
    } catch (Throwable e1) {
        //Ignore
    }

    //check if SU command is executable or not
    try {
        Runtime.getRuntime().exec("su");
        Log.e("Root Detected", "3");
        rootedDevice = true;
    } catch (IOException localIOException) {
        //Ignore
    }

    //check weather busy box application is installed
    String packageName = "stericson.busybox"; //Package for busy box app
    PackageManager pm = context.getPackageManager();
    try {
        Log.e("Root Detected", "4");
        pm.getPackageInfo(packageName, PackageManager.GET_ACTIVITIES);
        rootedDevice = true;
    } catch (PackageManager.NameNotFoundException e) {
        //App not installed
    }

    return rootedDevice;
}  

如果设备已获得 root 权限，它将返回 true，否则返回 false。