Here you can find the source of getTempDir()
public static File getTempDir()
//package com.java2s; /*/* w w w . j a v a 2 s . co m*/ * Copyright 2011 - AndroidQuery.com (tinyeeliu@gmail.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.os.Environment; import java.io.*; public class Main { public static File getTempDir() { File ext = Environment.getExternalStorageDirectory(); File tempDir = new File(ext, "asdf/temp"); tempDir.mkdirs(); if (!tempDir.exists() || !tempDir.canWrite()) { return null; } return tempDir; } }