Java tutorial
//package com.java2s; /* * Copyright 2016. SHENQINCI(?)<946736079@qq.com> * * 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.content.Context; import android.os.Environment; import android.support.annotation.NonNull; public class Main { public static String getRootFolder(@NonNull Context context) { String rootPath = null; if (android.os.Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) { rootPath = Environment.getExternalStorageDirectory().getAbsolutePath(); } else { rootPath = context.getFilesDir().getAbsolutePath(); } return rootPath; } }