the div,fixed positioning method used in the input box. When clicking on the input box and popping up the keyboard, ios will appear the soft keyboard blocking the input box. A lot of methods have been found on the Internet. To sum up, two
1, scrollIntoViw () invalid
2, document.body.scrollTop = document.body.scrollHeight; are useful, but there are side effects. The input box does not have a cursor, send button click event is invalid, etc.
I do not know whether the gods have a solution
when the input box gets focus, increase the position of the input box to the bottom so that it is fully displayed.
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