This should maybe work?

applets/cosmic-applet-network/src/ui/available_wifi.rs

@@ -1,22 +1,58 @@
 // SPDX-License-Identifier: LGPL-3.0-or-later
 
-use crate::task;
+use crate::{task, widgets::SettingsEntry};
 use cosmic_dbus_networkmanager::{
     device::{wireless::WirelessDevice, SpecificDevice},
     nm::NetworkManager,
 };
 use futures_util::StreamExt;
 use gtk4::{
-    glib::{source::PRIORITY_DEFAULT, MainContext, Sender},
+    glib::{self, clone, source::PRIORITY_DEFAULT, MainContext, Sender},
     prelude::*,
+    Align, Image,
 };
-use tokio::sync::mpsc::UnboundedSender;
+use std::{cell::RefCell, rc::Rc};
 use zbus::Connection;
 
 pub fn add_available_wifi(target: &gtk4::Box) {
+    let ap_entries = Rc::<RefCell<Vec<SettingsEntry>>>::default();
     let (tx, rx) = MainContext::channel::<Vec<AccessPoint>>(PRIORITY_DEFAULT);
-    task::spawn(scan_for_wifi(tx));
-    rx.attach(None, |aps| Continue(true));
+    task::spawn(async move {
+        if let Err(err) = scan_for_wifi(tx).await {
+            eprintln!("scan_for_wifi failed: {}", err);
+        }
+    });
+    rx.attach(
+        None,
+        clone!(@strong ap_entries, @weak target => @default-return Continue(true), move |aps| {
+            build_aps_list(ap_entries.clone(), target, dbg!(aps));
+            Continue(true)
+        }),
+    );
+}
+
+fn build_aps_list(
+    ap_entries: Rc<RefCell<Vec<SettingsEntry>>>,
+    target: gtk4::Box,
+    aps: Vec<AccessPoint>,
+) {
+    let mut ap_entries = ap_entries.borrow_mut();
+    for old_ap_box in ap_entries.drain(..) {
+        target.remove(&old_ap_box);
+    }
+    for ap in aps {
+        view! {
+            ap_entry = SettingsEntry {
+                align_child: Align::Start,
+                set_title: &ap.ssid,
+                set_child: ap_icon = &Image {
+                    set_icon_name: Some("network-wireless-symbolic"),
+                }
+            }
+        }
+        target.append(&ap_entry);
+        ap_entries.push(ap_entry);
+    }
 }
 
 async fn scan_for_wifi(tx: Sender<Vec<AccessPoint>>) -> zbus::Result<()> {
@@ -45,6 +81,7 @@ async fn handle_wireless_device(
     let mut scan_changed = device.receive_last_scan_changed().await;
     if let Some(t) = scan_changed.next().await {
         if let Ok(-1) = t.get().await {
+            eprintln!("scan errored");
             return Ok(());
         }
     }
@@ -56,9 +93,11 @@ async fn handle_wireless_device(
             strength: ap.strength().await?,
         });
     }
+    tx.send(aps).expect("failed to send back to main thread");
     Ok(())
 }
 
+#[derive(Debug)]
 struct AccessPoint {
     ssid: String,
     strength: u8,