BLE bluetoothgattcallback callback is slow

the callback using BLE bluetoothgattcallback is slow, mainly because the callback is slow for about 15 seconds when the device is disconnected

1. Use connectGatt (context, false, gattCallback) to connect Bluetooth
2. When the Bluetooth device is powered off, it takes a long time to detect;

has any warrior ever encountered it? Ask for advice!

Feb.28,2021

it will take me about 20 seconds. Have you solved it

?
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-64f5-7c3524-27641.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-7c3524-27641.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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