Canvas converted to base64 pictures cannot be saved by long press in Android

converting canvas to base64 pictures cannot be saved by long press in Android, but you can press long button to view the big picture first, and then long press Save to ask for help

Sep.19,2021
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-64f5-1b31842-34168.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b31842-34168.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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