we just discussed What is the life cycle of third-party input methods on the macOS platform?，Now let's talk about third-party keyboards for the iOS platform while it's hotThe life cycle。
On Apple's official website，only this：
It seems easy to understand，The life cycle of the keyboard is managed by the system，Every time the user calls out the keyboard，just it starts，User puts away the keyboard，After a while it's wiped out。
but there are[……]