remove flutter garbage
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Flutter.md
31
Flutter.md
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Flutter
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=======
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Async Speichern
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===============
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```
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showDialog(context: context, barrierDismissible: false,
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builder: (BuildContext context) { return AlertDialog(content: Text("Saving...")); });
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await saveToSomething()
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Navigator.of(context, rootNavigator: true).pop();
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```
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Async Laden initial
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===================
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* Initial nur den Loading Screen anzeigen
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* in InitState das async-Laden aufrufen
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* darin await LoadFromSomething()
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* dann Navigator.pushReplacement zur Home-Route
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Assets
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======
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* Ordner 'assets' anlegen
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* in pubspec.yaml -> flutter: -> assets: -> - assets/foobar.jpg auflisten
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Lokaler Package-Import
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======================
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* in pubspec.yaml unter dependencies den Namen des Package, dann den Pfad, z.B.:
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dependencies:
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myPackage:
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path: ../myPackage
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* Dann normal importieren, z.B. import"package:myPackage/file123.dart"
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357
createFlutter
357
createFlutter
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@ -1,357 +0,0 @@
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#!/bin/bash
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if [ "$#" -ne 2 ]; then
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echo "USAGE: $0 APP_NAME DESCRIPTION"
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exit 1
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fi
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PROJECT_HOME=~/AndroidStudioProjects
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ORG_PATH="$PROJECT_HOME/defaultOrg"
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KEY_PROPERTIES_PATH="$PROJECT_HOME/defaultKeyProperties"
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appName="$1"
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packageName=`echo "$appName" | tr ' ' '_' | tr '[:upper:]' '[:lower:]'`
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description="$2"
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echo "App Name: $appName"
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echo "Package Name: $packageName"
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echo "Description: $description"
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if [[ -f "$ORG_PATH" ]]; then
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org=`cat "$PROJECT_HOME/defaultOrg"`
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else
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echo "Could not find file with default org in $ORG_PATH"
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exit 1
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fi
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if [[ -f "$KEY_PROPERTIES_PATH" ]]; then
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keyProperties=`cat "$PROJECT_HOME/defaultKeyProperties"`
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else
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echo "Could not find file with default key properties in $KEY_PROPERTIES_PATH"
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exit 1
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fi
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flutter create --android-language java --org "$org" "$packageName" || exit 1
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cd "$packageName"
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##########################
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## append to .gitignore ##
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##########################
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echo "android/key.properties" >> .gitignore
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git init
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##################################
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## generate empty launcher icon ##
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##################################
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convert -size 2048x2048 xc:white launcherIcon.png
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############################
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## overwrite pubspec.yaml ##
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############################
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cat > pubspec.yaml <<EOF
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name: $packageName
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description: $description
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version: 1.0.0+1
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environment:
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sdk: ">=2.2.2 <3.0.0"
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dependencies:
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flutter:
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sdk: flutter
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intl: ^0.15.7
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shared_preferences: ^0.5.4+8
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cupertino_icons: ^0.1.2
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dev_dependencies:
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flutter_test:
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sdk: flutter
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flutter_launcher_icons: "^0.7.3"
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flutter_icons:
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image_path: "launcherIcon.png"
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android: true
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ios: true
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flutter:
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uses-material-design: true
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EOF
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#########################################
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## generate key.properties for signing ##
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#########################################
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cat > android/key.properties <<EOF
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$keyProperties
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EOF
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############################
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## overwrite build.gradle ##
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############################
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cat > android/app/build.gradle <<EOF
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def localProperties = new Properties()
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def localPropertiesFile = rootProject.file('local.properties')
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if (localPropertiesFile.exists()) {
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localPropertiesFile.withReader('UTF-8') { reader ->
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localProperties.load(reader)
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}
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}
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def flutterRoot = localProperties.getProperty('flutter.sdk')
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if (flutterRoot == null) {
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throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
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}
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def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
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if (flutterVersionCode == null) {
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flutterVersionCode = '1'
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}
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def flutterVersionName = localProperties.getProperty('flutter.versionName')
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if (flutterVersionName == null) {
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flutterVersionName = '1.0'
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}
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apply plugin: 'com.android.application'
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apply from: "\$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
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def keystoreProperties = new Properties()
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def keystorePropertiesFile = rootProject.file('key.properties')
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if (keystorePropertiesFile.exists()) {
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keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
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}
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android {
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compileSdkVersion 29
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lintOptions {
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disable 'InvalidPackage'
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}
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defaultConfig {
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// TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
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applicationId "$org.$packageName"
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minSdkVersion 16
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targetSdkVersion 29
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versionCode flutterVersionCode.toInteger()
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versionName flutterVersionName
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testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
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}
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signingConfigs {
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release {
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keyAlias keystoreProperties['keyAlias']
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keyPassword keystoreProperties['keyPassword']
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storeFile file(keystoreProperties['storeFile'])
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storePassword keystoreProperties['storePassword']
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}
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}
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buildTypes {
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release {
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signingConfig signingConfigs.release
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}
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}
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}
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flutter {
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source '../..'
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}
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dependencies {
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testImplementation 'junit:junit:4.12'
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androidTestImplementation 'com.android.support.test:runner:1.0.2'
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androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
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}
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EOF
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#######################
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## set android label ##
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#######################
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sed -i "s/android:label=\"$packageName\"/android:label=\"$appName\"/" android/app/src/main/AndroidManifest.xml
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#####################
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## empty README.md ##
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#####################
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cat > README.md <<EOF
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# $appName
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$description
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EOF
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#########################
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## overwrite main.dart ##
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#########################
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cat > lib/main.dart <<EOF
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import 'package:flutter/material.dart';
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import 'screens/loading.dart';
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void main() {
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runApp(MaterialApp(
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debugShowCheckedModeBanner: false,
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theme: ThemeData(
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primarySwatch: Colors.blue,
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),
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home: Loading(),
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));
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}
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EOF
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####################################
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## create loading and home screen ##
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####################################
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mkdir lib/screens
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cat > lib/screens/home.dart <<EOF
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import 'package:flutter/material.dart';
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class Home extends StatefulWidget {
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Home({Key key}) : super(key: key);
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static const title = '$appName';
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static void loadInitial(BuildContext context) async {
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await Future.delayed(Duration.zero, () {});
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// load some stuff here and await results
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Navigator.pushReplacement(context,
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MaterialPageRoute(builder: (context) => Home()));
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}
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static void save(BuildContext context) async {
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showDialog(context: context, barrierDismissible: false,
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builder: (BuildContext context) { return AlertDialog(content: Text("Saving...")); });
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await Future.delayed(Duration.zero, () {});
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Navigator.of(context, rootNavigator: true).pop();
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}
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@override
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_HomeState createState() => _HomeState();
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}
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class _HomeState extends State<Home> {
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int state = 1;
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void _changeState(int s) {
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setState(() {
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state = s;
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});
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}
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List<String> popupMenuItems = ["About"];
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: Text(Home.title),
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actions: <Widget>[
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PopupMenuButton<String>(
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onSelected: (String value) => handleClick(context, value),
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itemBuilder: (BuildContext context) {
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return popupMenuItems.map((String choice) {
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return PopupMenuItem<String>(
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value: choice,
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child: Text(choice),
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);
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}).toList();
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},
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),
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],
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),
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body: Padding(
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padding: const EdgeInsets.all(8.0),
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child: ListView(children: [
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Text("Lorem ipsum dolor sit amet"),
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]),
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),
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);
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}
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void handleClick(BuildContext context, String value) {
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switch (value) {
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case 'About':
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showLicensePage(context: context, applicationName: Home.title);
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}
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}
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}
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EOF
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cat > lib/screens/loading.dart <<EOF
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import 'package:flutter/material.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'home.dart';
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class Loading extends StatefulWidget {
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@override
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_LoadingState createState() => _LoadingState();
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}
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class _LoadingState extends State<Loading> {
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@override
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void initState() {
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super.initState();
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Home.loadInitial(context);
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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body: Container(
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child: Text("Loading..."),
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alignment: Alignment.center,
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),
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);
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}
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}
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EOF
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#####################
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## create Makefile ##
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#####################
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cat > Makefile <<EOF
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.PHONY: clean all launcherIcon
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all: launcherIcon
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flutter pub get
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flutter build appbundle
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clean:
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flutter clean
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launcherIcon:
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flutter pub get
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flutter pub run "flutter_launcher_icons:main"
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EOF
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################
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## test build ##
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################
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make clean launcherIcon all
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make clean
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Loading…
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Block a user