[移动开发]Android获取手机的唯一标识

/**
 * @param context 获取设备的唯一标识
 * @return
 */
//354732081842957
@SuppressLint("MissingPermission")
public static String getOnly(Context context) {
    try {
        //实例化TelephonyManager对象
        TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
        String imei;
        //获取IMEI号
        try {
            imei = telephonyManager.getDeviceId();
        }catch (Exception e){
            imei = getUUID();
        }


        //在次做个验证，也不是什么时候都能获取到的啊
        if (imei == null) {
            imei = "";
            //android.provider.Settings;
            imei = Settings.Secure.getString(context.getApplicationContext().getContentResolver(), Settings.Secure.ANDROID_ID);
            if (TextUtils.isEmpty(imei)){
                imei =Settings.System.getString(context.getContentResolver(), Settings.Secure.ANDROID_ID);
                if (TextUtils.isEmpty(imei)){
                    imei = getUUID();
                }
            }
        }


        return imei;
    } catch (Exception e) {
        e.printStackTrace();
        String imei;

        final TelephonyManager mTelephony = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);

        assert mTelephony != null;
        if (mTelephony.getDeviceId() != null)
        {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
            {
                imei = mTelephony.getImei();
            }else {
                imei = mTelephony.getDeviceId();
            }
        } else {
            imei = Settings.Secure.getString(context.getContentResolver(), Settings.Secure.ANDROID_ID);
        }

        if (TextUtils.isEmpty(imei)){
            imei = getUUID();
        }

        return imei;
    }

}
@SuppressLint("MissingPermission")
public static String getUUID()
{

    String serial = null;

    String m_szDevIDShort = "35" +
            Build.BOARD.length() % 10 + Build.BRAND.length() % 10 +

            Build.CPU_ABI.length() % 10 + Build.DEVICE.length() % 10 +

            Build.DISPLAY.length() % 10 + Build.HOST.length() % 10 +

            Build.ID.length() % 10 + Build.MANUFACTURER.length() % 10 +

            Build.MODEL.length() % 10 + Build.PRODUCT.length() % 10 +

            Build.TAGS.length() % 10 + Build.TYPE.length() % 10 +

            Build.USER.length() % 10; //13 位

    try {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            serial = android.os.Build.getSerial();
        } else {
            serial = Build.SERIAL;
        }
        //API>=9 使用serial号
        return new UUID(m_szDevIDShort.hashCode(), serial.hashCode()).toString();
    } catch (Exception exception) {
        //serial需要一个初始化
        serial = "serial"; // 随便一个初始化
    }
    //使用硬件信息拼凑出来的15位号码
    return new UUID(m_szDevIDShort.hashCode(), serial.hashCode()).toString();
}