About how seekBar displays negative values, this UI effect

looked for several wheels and found it was not good! So I want to write how to make the above thumb show a negative value to follow the scrolling of seekbar
if you have wheels, you can also recommend it to me. Thank you!
the seekBar of the system cannot be set to a negative value!

Mar.10,2021
The negative value of

is actually quite simple. When it is displayed, it can be handled with a layer of processing. For example, 0 is-10 60 is 50. This makes the logic of an offset

.
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MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bea3c7-319e3.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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