Cleartext HTTP traffic to 10.0.2.2 not permitted about signalr_flutter

[AyonAB]

@misici234 you are trying to connect with an HTTP url instead of HTTPS. I will recommend you to move your url to HTTPS.

But if you absolutely need to connect with a HTTP url, then you need to add the following lines in the manifest of your android source.

<application android:usesCleartextTraffic="true">
    </application>

This is because of Network Security Config, which says,

Starting with Android 9 (API level 28), cleartext support is disabled by default.

If you need more helps on this, read this Stackoverflow Thread.