Xamarin.Forms MQTTnet - ApplicationMessageReceived async event causes app to crash
I am working on an MQTTnet application for mobile/wearable devices. I've tested my code in both a standard C# WPF application and .Net Core application, both work as expected. The issue I am having is when I port the code to Xamarin Forms, for running on a Galaxy Watch. The app will run for a few seconds, but then it will crash. I believe it could be from the event firing too often, if that makes sense?
I have an MQTT publisher device pumping out a simple position value at a 10ms interval. Where my other apps will just keep chugging along, the app in Xamarin will lock and then eventually crash.
Here is my Xamarin code, is there a better way to handle this?
I can make it work by only publishing/receiving a message every 1 second, but this isn't ideal for position data presentation on the UI. I did manage to get it to work with 200ms interval, but anything past that it'll lock. Is there a way to ignore the event from firing too often in Xamarin, or prevent it from locking the app?
public App()
{
Task.Run(RunAsync)
}
`
public static async Task RunAsync()
{
var factory = new MqttFactory();
var client = factory.CreateMqttClient();
var clientOptions = new MqttClientOptions
{
ChannelOptions = new MqttClientTcpOptions
{
Server = MQTTBroker
}
};
client.ApplicationMessageReceived += (s, e) =>
{
PayloadLabel.Text = Encoding.UTF8.GetString(e.ApplicationMessage.Payload);
};
client.Connected += async (s, e) =>
{
await client.SubscribeAsync(new TopicFilterBuilder().WithTopic(MQTTSubTopic).Build());
};
// Attempt a connection to the broker
try
{
await client.ConnectAsync(clientOptions);
}
catch (Exception exception)
{
PayloadLabel.Text = "Failed to connect..."
}
}
}
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CREATE procedure InputClockOut @InputTime nvarchar(20) as Insert Into tbl_attendanceSheet(clockOut) Values (@InputTime)what I want presented in another way: lets assume this is my table:
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[memberCode] | [name] | [ClockIn]| [ClockOut] 121 Alex 09:00:00 122 jamy 09:00:20Neo comes and clocks in
[memberCode] | [name] | [ClockIn]| [ClockOut] 121 alex 09:00:00 122 jamy 09:00:20 123 Neo 09:00:25Neo Leaves:
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