H5 page is embedded in APP Android and IOS. How can the picture in the page realize the function of identifying the QR code by pressing a long button?

for example, how does the front end achieve this function?

Mar.19,2021

just leave it to the native ones to do it, and interact with them

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b352d8-2bf6c.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b352d8-2bf6c.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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