💡: add useRequest example: polling

Author: junerver

app/src/main/java/xyz/junerver/composehooks/example/request/Polling.kt

@@ -0,0 +1,54 @@
+package xyz.junerver.composehooks.example.request
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.height
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import kotlin.time.Duration.Companion.seconds
+import xyz.junerver.compose.hooks.optionsOf
+import xyz.junerver.compose.hooks.useRef
+import xyz.junerver.compose.hooks.useUpdate
+import xyz.junerver.compose.hooks.userequest.useRequest
+import xyz.junerver.composehooks.net.WebService
+import xyz.junerver.composehooks.net.asRequestFn
+import xyz.junerver.kotlin.asBoolean
+
+/**
+ * Description:
+ * @author Junerver
+ * date: 2024/3/13-10:59
+ * Email: junerver@gmail.com
+ * Version: v1.0
+ */
+@Composable
+fun Polling() {
+    // By using `useRef` the count is not lost even when the screen is rotated
+    val countRef = useRef(default = 0)
+    val update = useUpdate()
+    val (userInfo, loading, _, _, _, refresh) = useRequest(
+        requestFn = WebService::userInfo.asRequestFn(),
+        optionsOf {
+            defaultParams = arrayOf("junerver")
+            pollingInterval = 3.seconds
+            onSuccess = { _, _ ->
+                countRef.current += 1
+                update()
+            }
+        }
+    )
+    Surface {
+        Column {
+            Text(text = "Polling count: ${countRef.current}")
+            Spacer(modifier = Modifier.height(20.dp))
+            if (loading) {
+                Text(text = "Loading ...")
+            } else if (userInfo.asBoolean()) {
+                Text(text = "$userInfo".substring(0..100))
+            }
+        }
+    }
+}

app/src/main/java/xyz/junerver/composehooks/example/request/routes.kt

@@ -18,7 +18,7 @@ val subRoutes = mapOf<String, @Composable () -> Unit>(
     "mutate" to { Mutate() },
     "cancel" to { Cancel() },
     "loadingDelay" to { LoadingDelay() },
-    "polling" to { TODO() },
+    "polling" to { Polling() },
     "ready" to { TODO() },
     "depsRefresh" to { TODO() },
     "debounce" to { TODO() },