Android开SD卡的ID编程 [英] Android get id of SD Card programmatically

问题描述

有没有什么办法，我可以得到Android设备编程电流SD卡的一些特殊标识/序列号？

Is there any way which I can get some specific identifier/serial number of current SD Card in Android devices programmatically?

推荐答案

是的，试试这个：

public String getSDCARDiD()
    {
        String sd_cid = null;
        try {

            File file = new File("/sys/block/mmcblk1");
            String memBlk;
            if (file.exists() && file.isDirectory()) {

                memBlk = "mmcblk1";
            } else {
                //System.out.println("not a directory");
                memBlk = "mmcblk0";
            }

            Process cmd = Runtime.getRuntime().exec("cat /sys/block/"+memBlk+"/device/cid");
            BufferedReader br = new BufferedReader(new InputStreamReader(cmd.getInputStream()));
            sd_cid = br.readLine();
            //System.out.println(sd_cid);

        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return sd_cid;
    }

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