A utility class that allows retrieving android permissions used in the manifest file.

PermissionUtils.java

import android.content.Context;
import android.content.pm.PackageManager;

public final class PermissionUtils {
 
    private PermissionUtils() {
       // no-op
    }

    /**
     * Retrieves permissions listed in the manifest file
     * @param context Context
     * @return Returns String array of permissions
     */
    public static String[] retrievePermissions(Context context) {
        try {
            return context
                    .getPackageManager()
                    .getPackageInfo(context.getPackageName(), PackageManager.GET_PERMISSIONS)
                    .requestedPermissions;
        } catch (PackageManager.NameNotFoundException e) {
            throw new RuntimeException("This should have never happened.", e);
        }
    }
}

More

Check https://stackoverflow.com/a/41992932/3503855 for more details.