1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.compatibility.common.preconditions; 18 19 import android.os.Environment; 20 21 /** 22 * ExternalStorageHelper is used to check whether the device's external storage is readable 23 * and writeable. 24 */ 25 public class ExternalStorageHelper { 26 27 /* Checks if external storage is available for read and write */ 28 public static boolean isExternalStorageWritable() { 29 String state = Environment.getExternalStorageState(); 30 return Environment.MEDIA_MOUNTED.equals(state); 31 } 32 33 /* Checks if external storage is available to at least read */ 34 public static boolean isExternalStorageReadable() { 35 String state = Environment.getExternalStorageState(); 36 return (Environment.MEDIA_MOUNTED.equals(state) || 37 Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)); 38 } 39 40 } 41