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我是新来的android,我试了很多代码,但无法获取路径。 但使用下面的代码,我得到了外部SD卡的路径,但无法访问外部SD卡目录。外部Sd卡打印
public static List<StorageInfo> getStorageList() {
List<StorageInfo> list = new ArrayList<StorageInfo>();
String def_path = Environment.getExternalStorageDirectory().getPath();
boolean def_path_internal = !Environment.isExternalStorageRemovable();
String def_path_state = Environment.getExternalStorageState();
boolean def_path_available = def_path_state.equals(Environment.MEDIA_MOUNTED)
|| def_path_state.equals(Environment.MEDIA_MOUNTED_READ_ONLY);
boolean def_path_readonly = Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED_READ_ONLY);
BufferedReader buf_reader = null;
try {
HashSet<String> paths = new HashSet<String>();
buf_reader = new BufferedReader(new FileReader("/proc/mounts"));
String line;
int cur_display_number = 1;
while ((line = buf_reader.readLine()) != null) { if (line.contains("vfat") || line.contains("/mnt")) {
StringTokenizer tokens = new StringTokenizer(line, " ");
String unused = tokens.nextToken(); //device
String mount_point = tokens.nextToken(); //mount point
if (paths.contains(mount_point)) {
continue;
}
unused = tokens.nextToken(); //file system
List<String> flags = Arrays.asList(tokens.nextToken().split(",")); //flags
boolean readonly = flags.contains("ro");
if (mount_point.equals(def_path)) {
paths.add(def_path);
list.add(0, new StorageInfo(def_path, def_path_internal, readonly, -1));
} else if (line.contains("/dev/block/vold")) {
if (!line.contains("/mnt/secure")
&& !line.contains("/mnt/asec")
&& !line.contains("/mnt/obb")
&& !line.contains("/dev/mapper")
&& !line.contains("tmpfs")) {
paths.add(mount_point);
list.add(new StorageInfo(mount_point, false, readonly, cur_display_number++));
}
}
}
}
if (!paths.contains(def_path) && def_path_available) {
list.add(0, new StorageInfo(def_path, def_path_internal, def_path_readonly, -1));
}
} catch (FileNotFoundException ex) {
ex.printStackTrace();
} catch (IOException ex) {
ex.printStackTrace();
} finally {
if (buf_reader != null) {
try {
buf_reader.close();
} catch (IOException ex) {} }
}
return list;
}
如何访问Sd卡目录。
你是什么意思?出了什么问题?非常模糊的谈话。 – greenapps
Indead。该代码甚至不尝试访问目录。让它成为一个SD卡目录。你是对的。 – greenapps
但是,如果你有路径,然后显示它。 – greenapps