get Directory from external storage - Android Hardware

Android examples for Hardware:SD Card

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  4. SD Card

Description

get Directory from external storage

Demo Code


//package com.java2s;
import java.io.File;

import android.os.Environment;

public class Main {
    public static final String ROOT_DIR = "asdf";

    public static String getDir(String name) {
        StringBuilder sb = new StringBuilder();
        if (isSDCardAvailable()) {
            sb.append(getExternalStoragePath());
        }/* w  ww  .j ava  2  s .c o  m*/
        sb.append(name);
        sb.append(File.separator);
        String path = sb.toString();
        if (createDirs(path)) {
            return path;
        } else {
            return null;
        }
    }

    public static boolean isSDCardAvailable() {
        if (Environment.MEDIA_MOUNTED.equals(Environment
                .getExternalStorageState())) {
            return true;
        } else {
            return false;
        }
    }

    public static String getExternalStoragePath() {
        StringBuilder sb = new StringBuilder();
        sb.append(Environment.getExternalStorageDirectory()
                .getAbsolutePath());
        sb.append(File.separator);
        sb.append(ROOT_DIR);
        sb.append(File.separator);
        return sb.toString();
    }

    public static boolean createDirs(String dirPath) {
        File file = new File(dirPath);
        if (!file.exists() || !file.isDirectory()) {
            return file.mkdirs();
        }
        return true;
    }
}

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