How does oppo mobile phone automatically read verification code?

Introduction of automatic copying SMS verification code:

1, coloros11.1and above, after receiving the SMS verification code, a verification code bubble will appear. After clicking the bubble, the verification code will be automatically pasted into the corresponding area.

2.Coloros version 6. 1- 1 1.0. After receiving the SMS verification code, the verification code will be automatically copied to the clipboard of the input method keyboard (at this time, it will be prompted that the verification code has been automatically copied), and the verification code will appear in the candidate field of the input method keyboard. At this time, after clicking the verification code of the candidate word column, it can be automatically pasted into the corresponding area.

Tips:

When some three-party applications use the three-party secret keyboard, the clipboard will not be read, that is, the copy is invalid.