如何在Android上獲取多個存儲文件路徑？

Question

在我的手機中，我有兩個存儲區，其中一個是SD卡，另一個是extsdcard。

我可以得到由SD卡路徑：

Environment.getExternalStorageDirectory() 
.toString() 

如何得到extsdcard文件路徑？

Answer 1

使用該工具來獲取其他外部SD卡：

File storageDir= new File("/mnt/external_sd/") 

OR

File storageDir= new File("/mnt/extSdCard/") 

欲瞭解更多詳情，請參見http://mono-for-android.1047100.n5.nabble.com/detect-SD-Card-path-td5710218.html#a5710250和this

所以，像這樣用一個函數來獲取列表所有分機卡...

public static HashSet<String> getExternalMounts() { 
    final HashSet<String> out = new HashSet<String>(); 
    String reg = "(?i).*vold.*(vfat|ntfs|exfat|fat32|ext3|ext4).*rw.*"; 
    String s = ""; 
    try { 
     final Process process = new ProcessBuilder().command("mount") 
       .redirectErrorStream(true).start(); 
     process.waitFor(); 
     final InputStream is = process.getInputStream(); 
     final byte[] buffer = new byte[1024]; 
     while (is.read(buffer) != -1) { 
      s = s + new String(buffer); 
     } 
     is.close(); 
    } catch (final Exception e) { 
     e.printStackTrace(); 
    } 

    // parse output 
    final String[] lines = s.split("\n"); 
    for (String line : lines) { 
     if (!line.toLowerCase(Locale.US).contains("asec")) { 
      if (line.matches(reg)) { 
       String[] parts = line.split(" "); 
       for (String part : parts) { 
        if (part.startsWith("/")) 
         if (!part.toLowerCase(Locale.US).contains("vold")) 
          out.add(part); 
       } 
      } 
     } 
    } 
    return out; 
}