Java tutorial
//package com.java2s; /* * Copyright (c) 2015. Roberto Prato <https://github.com/robertoprato> * * * * * * * Licensed under the Apache License, Version 2.0 (the "License"); * * you may not use this file except in compliance with the License. * * You may obtain a copy of the License at * * * * http://www.apache.org/licenses/LICENSE-2.0 * * * * Unless required by applicable law or agreed to in writing, software * * distributed under the License is distributed on an "AS IS" BASIS, * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * * See the License for the specific language governing permissions and * * limitations under the License. * */ import android.net.Uri; import android.text.TextUtils; import java.util.List; public class Main { public static String getGfycatId(String in) { Uri uri = Uri.parse(in); final String host = uri.getHost(); if (TextUtils.isEmpty(host) == false && host.endsWith("gfycat.com") == true) { List<String> paths = uri.getPathSegments(); if (paths.size() == 1) { return paths.get(0); } else if (paths.size() == 2) { return paths.get(1); } } return null; } }