在我的手机中,我有两个存储器,一个是 SD 卡,另一个是extsdcard
.
我可以通过以下方式获取 sdcard 路径:
Environment.getExternalStorageDirectory()
.toString()
如何获取 extsdcard 文件路径?
使用它来获取另一个外部 sdcard:
File storageDir= new File("/mnt/external_sd/")
或者
File storageDir= new File("/mnt/extSdCard/")
有关更多详细信息,请参阅http://mono-for-android.1047100.n5.nabble.com/detect-SD-Card-path-td5710218.html#a5710250 和这个
所以像这样使用一个函数来获取所有扩展卡的列表......
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;
}