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首先，我通过android在拨号键盘输入类似##0318##的指令学习了暗码的实现，但是我现在面临一个问题，
我不希望host里面的数字出现在manifest里面，有没有什么办法例如动态注册这个广播或者其他什么方法不让别人轻易的知道我设置的号码？
欢迎选择我的课程，让我们一起见证您的进步~~
There is no need to write the host. After receiving this broadcast, we can judge whether it is the host we want.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
There is no need to write the host. After receiving this broadcast, we can judge whether it is the host we want.