added main

20250327/my-app/app/_layout.tsx

@@ -0,0 +1,5 @@
+import { Stack } from "expo-router";
+
+export default function RootLayout() {
+  return <Stack />;
+}

20250327/my-app/app/index.jsx

@@ -0,0 +1,43 @@
+import { useEffect, useState } from "react";
+import { View, Text, TextInput, Button, FlatList, StyleSheet, Alert } from "react-native";
+
+const baseUrl = "http://api.weatherapi.com/v1/current.json?key=1232eaa82978466da1f81125252703&q=";
+
+export default function Index() {
+  const [city, setCity] = useState("");
+
+
+  const handlePress = () => {
+    console.log(city);   
+  }
+
+  useEffect(() => {
+    async function fetchData() {
+      try {
+        const response = await fetch(`${baseUrl}Békéscsaba`);
+        const data = await response.json();
+        console.log(data);
+      } catch (error) {
+        console.error(error);
+      }
+    }
+    fetchData();
+    }, []);
+
+  return (
+    <View>
+      <Text>
+        Időjárás app
+      </Text>
+      <Button
+        title="Keresés"
+        onPress={handlePress} />
+      <TextInput
+        placeholder="Város"
+        value={city}
+        onChangeText={setCity} />
+    </View>
+  );
+}
+
+