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最新推荐文章于 2025-05-31 20:09:18 发布

Meng_fengyang

最新推荐文章于 2025-05-31 20:09:18 发布

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分类专栏：工具类文章标签： android 路径-目录

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本文详细介绍了Android中各种存储路径的获取方法，包括内部存储、外部存储及特定目录的路径，并展示了如何判断外部存储的状态。

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Android外部存储/内部存储路径获取大全

[java] view plain copy
package com.mufeng.toolproject.utils;  

import android.content.Context;  
import android.os.Environment;  

/** 
 * Created by mufeng on 2017/3/11. 
 */  
public class DirectoryUtils {  
    private static final String TAG = "DirectoryUtils";  

    public static void getEnvironmentDirectories() {  
        //:/system  
        String rootDir = Environment.getRootDirectory().toString();  
        System.out.println("Environment.getRootDirectory()=:" + rootDir);  

        //:/data 用户数据目录  
        String dataDir = Environment.getDataDirectory().toString();  
        System.out.println("Environment.getDataDirectory()=:" + dataDir);  

        //:/cache 下载缓存内容目录  
        String cacheDir = Environment.getDownloadCacheDirectory().toString();  
        System.out.println("Environment.getDownloadCacheDirectory()=:" + cacheDir);  

        //:/mnt/sdcard或者/storage/emulated/0或者/storage/sdcard0 主要的外部存储目录

[java] view plain copy
//<span style="color:#ff0000;">这个不一定是外部存储  
</span>        String storageDir = Environment.getExternalStorageDirectory().toString();  
        System.out.println("Environment.getExternalStorageDirectory()=:" + storageDir);  

        //:/mnt/sdcard/Pictures或者/storage/emulated/0/Pictures或者/storage/sdcard0/Pictures  
        String publicDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).toString();  
        System.out.println("Environment.getExternalStoragePublicDirectory()=:" + publicDir);  

        //获取SD卡是否存在:mounted  
        String storageState = Environment.getExternalStorageState().toLowerCase();  
        System.out.println("Environment.getExternalStorageState()=:" + storageState);  

        //设备的外存是否是用内存模拟的，是则返回true。(API Level 11)  
        boolean isEmulated = Environment.isExternalStorageEmulated();  
        System.out.println("Environment.isExternalStorageEmulated()=:" + isEmulated);  

       <span style="color:#ff0000;"> //设备的外存是否是可以拆卸的，比如SD卡，是则返回true。(API Level 9)  
        boolean isRemovable = Environment.isExternalStorageRemovable();  
        System.out.println("Environment.isExternalStorageRemovable()=</span>:" + isRemovable);  
    }  

    public static void getApplicationDirectories(Context context) {  

        //获取当前程序路径 应用在内存上的目录 :/data/data/com.mufeng.toolproject/files  
        String filesDir = context.getFilesDir().toString();  
        System.out.println("context.getFilesDir()=:" + filesDir);  

        //应用的在内存上的缓存目录 :/data/data/com.mufeng.toolproject/cache  
        String cacheDir = context.getCacheDir().toString();  
        System.out.println("context.getCacheDir()=:" + cacheDir);  

        //应用在外部存储上的目录 :/storage/emulated/0/Android/data/com.mufeng.toolproject/files/Movies  
        String externalFilesDir = context.getExternalFilesDir(Environment.DIRECTORY_MOVIES).toString();  
        System.out.println("context.getExternalFilesDir()=:" + externalFilesDir);  

        //应用的在外部存储上的缓存目录 :/storage/emulated/0/Android/data/com.mufeng.toolproject/cache  
        String externalCacheDir = context.getExternalCacheDir().toString();  
        System.out.println("context.getExternalCacheDir()=:" + externalCacheDir);  

        //获取该程序的安装包路径 :/data/app/com.mufeng.toolproject-3.apk  
        String packageResourcePath = context.getPackageResourcePath();  
        System.out.println("context.getPackageResourcePath()=:" + packageResourcePath);  

        //获取程序默认数据库路径 :/data/data/com.mufeng.toolproject/databases/mufeng  
        String databasePat = context.getDatabasePath("mufeng").toString();  
        System.out.println("context.getDatabasePath(\"mufeng\")=:" + databasePat);  


    }  
}