+ 1
How to create app begginer
10 Antworten
+ 7
If you want to build a mobile app for Android, learn Kotlin or Java.
For Apple / iOS, learn Swift.
For web application, you can start with Javascript, but the back-end can be written in any general purpose programming language.
+ 1
Learn dart and flutter , its an equivalent of React. Youll be able to create android and Ios apps
0
Thanks
0
So what language do you recommend
0
Thanks
0
Here is a simple example of a React Native app that displays "Hello, World!" on the screen:
import React from 'react';
import { Text, View } from 'react-native';
export default function App() {
  return (
    <View style={{ flex: 1, justifyContent: 'center', alignItems: 'center' }}>
      <Text>Hello, World!</Text>
    </View>
  );
}
This app uses the Text and View components from React Native to display some text on the screen. The View component acts as a container, and the Text component displays the text "Hello, World!".
To run this app, you will need to install React Native and set up a development environment on your computer. You can find more information on how to do this in the React Native documentation.
0
To create an on/off switch (also known as a Switch component in React Native) in your React Native app
import React, { useState } from 'react';
import { View, Switch } from 'react-native';
export default function App() {
  const [isOn, setIsOn] = useState(false);
  return (
    <View style={{ flex: 1, justifyContent: 'center', alignItems: 'center' }}>
      <Switch
        value={isOn}
        onValueChange={(value) => setIsOn(value)}
      />
    </View>
  );
}
0
Create on/off switch in flutter.
In the main.dart file, import the material.dart package:
import 'package:flutter/material.dart';
In the build method of the MyApp class:
@override
Widget build(BuildContext context) {
  return MaterialApp(
    home: Scaffold(
      body: Center(
        child: Switch(
          value: _switchIsOn,
          onChanged: _toggleSwitch,
        ),
      ),
    ),
  );
}
In the MyApp class:
class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
  bool _switchIsOn = false;
  void _toggleSwitch() {
    setState(() {
      _switchIsOn = !_switchIsOn;
    });
  }
  // ...
}



