Developer technologies | .NET | Xamarin
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Xamarin Android: WriteCharacteristic sometimes overwrites OnCharacteristicChanged
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Raymond Ha
1
Reputation point
I have a keep alive message coming ever 3-5 secs. When I execute WriteCharacteristic right as data is coming into OnCharacteristicChanged, it'll overwrite the OnCharacteristicChanged data received with the bytes I'm trying to send over. Is there a new API or SDK that is available that's more thread safe?
Currently using Xamarin.Android SDK 11.4.0.5
Thanks!
Developer technologies | .NET | Xamarin
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Anonymous2022-03-25T05:43:54.243+00:00 Do you use BluetoothGattCallback to get the BLE data? If so, I cannot search new API, But you can try to use
HandlerThreadandHandlerto get/set the data in the same thread. Please google: achieve maximum thread safety with a read/write BLE Gatt, you will find a SO thread about this issue.
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