不需权限获得Android设备唯一标识序列号

public static String getUniqueSerialNumber() {
String phoneName = Build.MODEL;// Galaxy nexus 品牌类型
String manuFacturer = Build.MANUFACTURER;//samsung 品牌
Log.d("详细序列号", manuFacturer + "-" + phoneName + "-" + getSerialNumber());
return manuFacturer + "-" + phoneName + "-" + getSerialNumber();
}

public static String getSerialNumber() {
String serial = null;
try {
Class<?> c = Class.forName("android.os.SystemProperties");
Method get = c.getMethod("get", String.class);
serial = (String) get.invoke(c, "ro.serialno");
} catch (Exception e) {
e.printStackTrace();
}
return serial;
}