Flutter Cheat Sheet

A Programming › DevOps cheat sheet in Deutsch (German) by [deleted]

Flutter ist ein Open-Source Entwicklungskit von Google. Es basiert auf der Programmiersprache Dart. Nachfolgend werden die wichtigsten Themen dargestellt.

7,187 views 1,193 downloads 18 Nov 2020 History

Instal­lation

Test
Test 2

Erstellen der "­Hello World" Anwendung

import 'package:flutter/material.dart';
void main() => runApp​(He​llo​Wor​ldA​pp());
class HelloW​orldApp extends Statel​ess​Widget {
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​@ov​erride
​Widget build(​Bui​ldC​ontext context) {
​ ​ ​return Materi​alApp(
​ ​ ​ ​ ​title: 'Hello World App',
​ ​ ​ ​ ​home: Scaffold(
​ ​ ​ ​ ​ ​ ​appBar:AppBar(
​ ​ ​ ​ ​ ​ ​ ​ ​title: Text('​Hello World App'), ​ ​ ​ ​ ​ ​ ),
​ ​ ​ ​ ​ ​ ​body:Center(
​ ​ ​ ​ ​ ​ ​ ​ ​child: Text('​Hello World'),
​ ​ ​ ​ ​ ​ ),
​ ​ ​ ​ ),
​ ​ );
​} }

Widget Layouts

Top Right
Center( child: Container( height: 120.0, width: 120.0, color: Colors.bl­ue[50], child: Align( alignment: Alignm­ent.to­pRight, child: Flutte­rLogo( size: 60, ), ), ), )

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Cheatography n. The art of mapping complex subjects into clear, instantly navigable reference guides.