Android Permission Utility class. A collection of static convenience methods for checking if Android Runtime permissions are required.

PermissionUtils.java

import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.preference.PreferenceManager;
import android.provider.Settings;
import android.support.v4.app.Fragment;

import java.util.List;

public class PermissionUtils {

    public static boolean useRunTimePermissions() {
        return Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP_MR1;
    }

    public static boolean hasPermission(Activity activity, String permission) {
        if (useRunTimePermissions()) {
            return activity.checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED;
        }
        return true;
    }

    public static void requestPermissions(Activity activity, String[] permission, int requestCode) {
        if (useRunTimePermissions()) {
            activity.requestPermissions(permission, requestCode);
        }
    }

    public static void requestPermissions(Fragment fragment, String[] permission, int requestCode) {
        if (useRunTimePermissions()) {
            fragment.requestPermissions(permission, requestCode);
        }
    }

    public static boolean shouldShowRational(Activity activity, String permission) {
        if (useRunTimePermissions()) {
            return activity.shouldShowRequestPermissionRationale(permission);
        }
        return false;
    }

    public static boolean shouldAskForPermission(Activity activity, String permission) {
        if (useRunTimePermissions()) {
            return !hasPermission(activity, permission) &&
                    (!hasAskedForPermission(activity, permission) ||
                    shouldShowRational(activity, permission));
        }
        return false;
    }

    public static void goToAppSettings(Activity activity) {
        Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS,
                Uri.fromParts("package", activity.getPackageName(), null));
        intent.addCategory(Intent.CATEGORY_DEFAULT);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        activity.startActivity(intent);
    }

    public static boolean hasAskedForPermission(Activity activity, String permission) {
        return PreferenceManager
                .getDefaultSharedPreferences(activity)
                .getBoolean(permission, false);
    }

    public static void markedPermissionAsAsked(Activity activity, String permission) {
        PreferenceManager
                .getDefaultSharedPreferences(activity)
                .edit()
                .putBoolean(permission, true)
                .apply();
    }
}

i have a question so
how to import this class to my app main activity for google map api

Super dooper!! Thanks man 👍

Good work here! Super helpful.

Can you please an example of how to utilize this class in an another activity where we are required to ask permission.

You can use it in every Activities or fragments I think, because all methods are statics. @gauravg924 Just call PermissionUtils.()

Thanks so much!!

¡Excelente aporte!