Android 11 判断并获取设备U盘或SD卡路径

方法定义

public static String getUPath(boolean isUsb) {
    String path = "";
    StorageManager mStorageManager = (StorageManager) MyApplication.getInstance().getSystemService(Context.STORAGE_SERVICE);
    Class<?> volumeInfoClazz;
    Class<?> diskInfoClaszz;
    try {
        volumeInfoClazz = Class.forName("android.os.storage.VolumeInfo");
        diskInfoClaszz = Class.forName("android.os.storage.DiskInfo");
        Method StorageManager_getVolumes = Class.forName("android.os.storage.StorageManager").getMethod("getVolumes");
        Method VolumeInfo_GetDisk = volumeInfoClazz.getMethod("getDisk");
        Method VolumeInfo_GetPath = volumeInfoClazz.getMethod("getPath");
        Method DiskInfo_IsUsb = diskInfoClaszz.getMethod("isUsb");
        Method DiskInfo_IsSd = diskInfoClaszz.getMethod("isSd");
        List<Object> List_VolumeInfo = (List<Object>) StorageManager_getVolumes.invoke(mStorageManager);
        assert List_VolumeInfo != null;
        for (int i = 0; i < List_VolumeInfo.size(); i++) {
            Object volumeInfo = List_VolumeInfo.get(i);
            Object diskInfo = VolumeInfo_GetDisk.invoke(volumeInfo);
            if (diskInfo == null) continue;
            boolean sd = (boolean) DiskInfo_IsSd.invoke(diskInfo);
            boolean usb = (boolean) DiskInfo_IsUsb.invoke(diskInfo);
            File file = (File) VolumeInfo_GetPath.invoke(volumeInfo);
            if (isUsb == usb) {//usb
                assert file != null;
                path = file.getAbsolutePath();
            } else if (!isUsb == sd) {//sd
                assert file != null;
                path = file.getAbsolutePath();
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return path;
}

方法调用

获取U盘路径（返回值为空时，则表示无U盘插入）

String uPath = FileHelper.getUPath(true);

获取SD卡路径（返回值为空时，则表示无SD卡插入）

String sdPath = FileHelper.getUPath(false);