Java tutorial
//package com.java2s; /* * Copyright (c) 2015-present, Facebook, Inc. * All rights reserved. * * This source code is licensed under the BSD-style license found in the * LICENSE file in the root directory of this source tree. An additional grant * of patent rights can be found in the PATENTS file in the same directory. */ import android.support.annotation.Nullable; public class Main { public static boolean isPhoto(@Nullable String mimeType) { return mimeType != null && mimeType.startsWith("image/"); } }