Can ios8gm send short messages with third-party input method?

Yes, you can use your own browser to register an account at fir.im, and then search for Baidu input method in it. After downloading, you need to enter the activation code. You can apply for the activation code yourself and send it back to your mailbox. If you are lucky, you will get the activation code after half an hour, but if you are unlucky, you won't even receive it, or if you randomly enter the combination of five digits and lowercase letters, it depends on luck. I just entered it myself.