让所有Android上的总的和可用空间 [英] Getting all the total and available space on Android

问题描述

据我所知，在Android上，有：

To my knowledge, on Android, there is:

• 在内部存储器中的应用程序和缓存
• 在某些手机内部SD卡（不可拆卸）
• 在外接SD卡音乐和照片（可移动）

我如何与他们存在的检查（有些手机没有内置SD卡）

How do I get the total and available for each with a check that they exist (some phones do not have an internal SD Card)

感谢

推荐答案

下面是你如何让内部存储大小：

Here is how you get internal storage sizes:

 StatFs statFs = new StatFs(Environment.getRootDirectory().getAbsolutePath());        
 long blockSize = statFs.getBlockSize();
 long totalSize = statFs.getBlockCount()*blockSize;
 long availableSize = statFs.getAvailableBlocks()*blockSize;
 long freeSize = statFs.getFreeBlocks()*blockSize;

下面是你如何获得外部存储大小（SD卡大小）：

Here is how you get external storage sizes (SD card size):

 StatFs statFs = new StatFs(Environment.getExternalStorageDirectory().getAbsolutePath());        
 long blockSize = statFs.getBlockSize();
 long totalSize = statFs.getBlockCount()*blockSize;
 long availableSize = statFs.getAvailableBlocks()*blockSize;
 long freeSize = statFs.getFreeBlocks()*blockSize;

---

便签的

免费块：

块的总数是   自由的文件系统，包括上   保留块（即不   适用于正常的应用程序）。

The total number of blocks that are free on the file system, including reserved blocks (that are not available to normal applications).

可用块：

块是免费数   文件系统并提供给   应用程序。

The number of blocks that are free on the file system and available to applications.

下面是如何检测SD卡是否被安装：

---

Here is how to detect whether SD card is mounted:

 String state = Environment.getExternalStorageState();
 if (Environment.MEDIA_MOUNTED.equals(state)) 
 {
   // We can read and write the media    
 } 
 else if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) 
 {
    // We can only read the media     
 } 
 else 
 {
    // No external media
 }

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