2020-01-08

Viewカードの手順

新しいカードが入ったときの手順 f:id:shinriyo:20200108145019j:plain f:id:shinriyo:20200108145022j:plain f:id:shinriyo:20200108145351j:plain

2019-12-30

SwiftUI徹底入門　サンプルダウンロード

SwiftUI徹底入門　サンプルダウンロードここ

https://www.sbcr.jp/support/48969/

SwiftUI 徹底入門

作者:金田浩明
出版社/メーカー: SBクリエイティブ
発売日: 2019/12/21
メディア: Kindle版

2019-12-28

ビルド失敗

flutter

以下のエラーが出る。

Launching lib/main.dart on Pixel 3a in debug mode...
[!] Your app isn't using AndroidX.
    To avoid potential build failures, you can quickly migrate your app by following the steps on https://goo.gl/CP92wY.
Running Gradle task 'assembleDebug'...

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:processDebugResources'.
> Android resource linking failed
  Output:  /Users/shinriyo/development/flutter_apps/flutter_keyboard_actions/example/build/app/intermediates/incremental/mergeDebugResources/merged.dir/values/values.xml:186: error: resource android:attr/fontVariationSettings not found.
  /Users/shinriyo/development/flutter_apps/flutter_keyboard_actions/example/build/app/intermediates/incremental/mergeDebugResources/merged.dir/values/values.xml:187: error: resource android:attr/ttcIndex not found.
  error: failed linking references.

  Command: /Users/shinriyo/.gradle/caches/transforms-1/files-1.1/aapt2-3.2.1-4818971-osx.jar/cf15aaf3329ecd741f3a7b23edd265f5/aapt2-3.2.1-4818971-osx/aapt2 link -I\
          /Users/shinriyo/Library/Android/sdk/platforms/android-27/android.jar\
          --manifest\
          /Users/shinriyo/development/flutter_apps/flutter_keyboard_actions/example/build/app/intermediates/merged_manifests/debug/processDebugManifest/merged/AndroidManifest.xml\
          -o\
          /Users/shinriyo/development/flutter_apps/flutter_keyboard_actions/example/build/app/intermediates/processed_res/debug/processDebugResources/out/resources-debug.ap_\
          -R\
          @/Users/shinriyo/development/flutter_apps/flutter_keyboard_actions/example/build/app/intermediates/incremental/processDebugResources/resources-list-for-resources-debug.ap_.txt\
          --auto-add-overlay\
          --java\
          /Users/shinriyo/development/flutter_apps/flutter_keyboard_actions/example/build/app/generated/not_namespaced_r_class_sources/debug/processDebugResources/r\
          --custom-package\
          com.example.example\
          -0\
          apk\
          --output-text-symbols\
          /Users/shinriyo/development/flutter_apps/flutter_keyboard_actions/example/build/app/intermediates/symbols/debug/R.txt\
          --no-version-vectors
  Daemon:  AAPT2 aapt2-3.2.1-4818971-osx Daemon #0
  Output:  /Users/shinriyo/.gradle/caches/transforms-1/files-1.1/support-compat-28.0.0.aar/d08d5771368b94287c50e67f3f752a2d/res/values/values.xml:89:5-125:25: AAPT: error: resource android:attr/fontVariationSettings not found.

  /Users/shinriyo/.gradle/caches/transforms-1/files-1.1/support-compat-28.0.0.aar/d08d5771368b94287c50e67f3f752a2d/res/values/values.xml:89:5-125:25: AAPT: error: resource android:attr/ttcIndex not found.

  error: failed linking references.
  Command: /Users/shinriyo/.gradle/caches/transforms-1/files-1.1/aapt2-3.2.1-4818971-osx.jar/cf15aaf3329ecd741f3a7b23edd265f5/aapt2-3.2.1-4818971-osx/aapt2 link -I\
          /Users/shinriyo/Library/Android/sdk/platforms/android-27/android.jar\
          --manifest\
          /Users/shinriyo/development/flutter_apps/flutter_keyboard_actions/example/build/app/intermediates/merged_manifests/debug/processDebugManifest/merged/AndroidManifest.xml\
          -o\
          /Users/shinriyo/development/flutter_apps/flutter_keyboard_actions/example/build/app/intermediates/processed_res/debug/processDebugResources/out/resources-debug.ap_\
          -R\
          @/Users/shinriyo/development/flutter_apps/flutter_keyboard_actions/example/build/app/intermediates/incremental/processDebugResources/resources-list-for-resources-debug.ap_.txt\
          --auto-add-overlay\
          --java\
          /Users/shinriyo/development/flutter_apps/flutter_keyboard_actions/example/build/app/generated/not_namespaced_r_class_sources/debug/processDebugResources/r\
          --custom-package\
          com.example.example\
          -0\
          apk\
          --output-text-symbols\
          /Users/shinriyo/development/flutter_apps/flutter_keyboard_actions/example/build/app/intermediates/symbols/debug/R.txt\
          --no-version-vectors
  Daemon:  AAPT2 aapt2-3.2.1-4818971-osx Daemon #0

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 2s
Finished with error: Gradle task assembleDebug failed with exit code 1

この辺見る https://github.com/flutter/flutter/issues/27106

flutter doctor -vするとライセンス云々

[✓] Flutter (Channel master, v1.10.16-pre.4, on Mac OS X 10.15.2 19C57, locale en-JP)
    • Flutter version 1.10.16-pre.4 at /Users/shinriyo/development/flutter_apps/flutter
    • Framework revision ee032f67c7 (8 weeks ago), 2019-11-02 09:46:25 -0700
    • Engine revision 8ea19b1c76
    • Dart version 2.6.0 (build 2.6.0-dev.8.2 bbe2ac28c9)


[!] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
    • Android SDK at /Users/shinriyo/Library/Android/sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-28, build-tools 28.0.3
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)
    ! Some Android licenses not accepted.  To resolve this, run: flutter doctor --android-licenses

[✓] Xcode - develop for iOS and macOS (Xcode 11.3)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 11.3, Build version 11C29
    • CocoaPods version 1.8.4

[✓] Android Studio (version 3.5)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 42.1.1
    • Dart plugin version 191.8593
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)

[!] IntelliJ IDEA Community Edition (version 2019.2.3)
    • IntelliJ at /Applications/IntelliJ IDEA CE.app
    ✗ Flutter plugin not installed; this adds Flutter specific functionality.
    ✗ Dart plugin not installed; this adds Dart specific functionality.
    • For information about installing plugins, see
      https://flutter.dev/intellij-setup/#installing-the-plugins

[✓] VS Code (version 1.41.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.7.1

[✓] Connected device (1 available)
    • Pixel 3a • 94MAY0R3C8 • android-arm64 • Android 10 (API 29)

flutter doctor --android-licenses

android {
    compileSdkVersion 27

    lintOptions {
        disable 'InvalidPackage'

これの27を28

2019-12-26

スクロールを表示

flutter

Scrollable.ensureVisible(dataKey.currentContext);

2019-12-26

slider

flutter

https://stackoverflow.com/questions/53866967/how-to-create-a-carrousel-sliding-animation-with-pageview-in-flutter

import 'package:page_indicator/page_indicator.dart';必要

page_indicator: ^0.3.0

これも違う。

    PageIndicatorContainer container = new PageIndicatorContainer(
      child: new PageView(
        children: _list,

import 'package:flutter/material.dart';
import 'package:page_indicator/page_indicator.dart';

void main() => runApp(new Carousel());

class Carousel extends StatefulWidget {
  _CarouselState createState() => _CarouselState();
}

class _CarouselState extends State<Carousel>
    with SingleTickerProviderStateMixin {
  final PageController _controller = PageController();

  List<Widget> _list = [
    SliderBox(
        child: FlutterLogo(
      colors: Colors.red,
    )),
    SliderBox(
        child: FlutterLogo(
      colors: Colors.green,
    )),
    SliderBox(
        child: FlutterLogo(
      colors: Colors.blue,
    ))
  ];

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) => _animateSlider());
  }

  void _animateSlider() {
    Future.delayed(Duration(seconds: 2)).then((_) {
      int nextPage = _controller.page.round() + 1;

      if (nextPage == _list.length) {
        nextPage = 0;
      }

      _controller
          .animateToPage(nextPage,
              duration: Duration(seconds: 1), curve: Curves.linear)
          .then((_) => _animateSlider());
    });
  }

  @override
  Widget build(BuildContext context) {
    PageIndicatorContainer container = new PageIndicatorContainer(
      child: new PageView(
        children: _list,
        controller: _controller,
      ),
      length: _list.length,
      padding: EdgeInsets.fromLTRB(10, 40, 10, 10),
      indicatorSpace: 10,
      indicatorColor: Colors.grey[350],
      indicatorSelectorColor: Colors.grey,
    );

    return Stack(
      children: <Widget>[
        Container(color: Colors.grey[100], height: double.infinity),
        Container(
            color: Colors.white,
            child: container,
            margin: EdgeInsets.only(bottom: 50)),
      ],
    );
  }
}

class SliderBox extends StatelessWidget {
  final Widget child;
  const SliderBox({Key key, this.child}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Container(padding: EdgeInsets.all(10), child: child);
  }
}

import 'package:flutter/material.dart';
import 'package:page_indicator/page_indicator.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Carousel(),
    );
  }
}

class Carousel extends StatefulWidget {
  _CarouselState createState() => _CarouselState();
}

class _CarouselState extends State<Carousel>
    with SingleTickerProviderStateMixin {
  final PageController _controller = PageController();

  List<Widget> _list = [
    SliderBox(
        index: 0,
        child: FlutterLogo(
          colors: Colors.red,
        )),
    SliderBox(
        index: 2,
        child: FlutterLogo(
          colors: Colors.green,
        )),
    SliderBox(
        index: 3,
        child: FlutterLogo(
          colors: Colors.blue,
        ))
  ];

  @override
  void initState() {
    super.initState();
//    WidgetsBinding.instance.addPostFrameCallback((_) => _animateSlider());
  }

  void _animateSlider() {
    Future.delayed(Duration(seconds: 2)).then((_) {
      int nextPage = _controller.page.round() + 1;

      if (nextPage == _list.length) {
        nextPage = 0;
      }

      _controller
          .animateToPage(nextPage,
              duration: Duration(seconds: 1), curve: Curves.linear)
          .then((_) => _animateSlider());
    });
  }

  @override
  Widget build(BuildContext context) {
    PageIndicatorContainer container = PageIndicatorContainer(
      child: PageView(
          children: _list,
          controller: _controller,
          onPageChanged: (page) {
            print(page);
          }),
      length: _list.length,
      padding: EdgeInsets.fromLTRB(10, 40, 10, 10),
      indicatorSpace: 10,
      indicatorColor: Colors.grey[350],
      indicatorSelectorColor: Colors.grey,
    );

    return Stack(
      children: <Widget>[
        Container(color: Colors.grey[100], height: double.infinity),
        Container(
            color: Colors.white,
            child: container,
            margin: EdgeInsets.only(bottom: 50)),
      ],
    );
  }
}

class SliderBox extends StatefulWidget {
  final int index;
  final Widget child;
  const SliderBox({Key key, this.index, this.child}) : super(key: key);

  @override
  _SliderBoxState createState() => _SliderBoxState();
}

class _SliderBoxState extends State<SliderBox>
    with SingleTickerProviderStateMixin {
  AnimationController _animationController;

  @override
  void initState() {
    super.initState();
    _animationController = AnimationController(
      vsync: this,
      duration: const Duration(milliseconds: 500),
    );

    _animationController.drive(
      AlignmentTween(
        begin: Alignment.topLeft,
        end: Alignment.bottomRight,
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    print(this.widget.index);
    return Container(
      padding: EdgeInsets.all(10),
      child: AlignTransition(
        alignment: _animationController
            .drive(
              CurveTween(
                curve: const Interval(0, 0.6, curve: Curves.fastOutSlowIn),
              ),
            )
            .drive(
              AlignmentTween(
                begin: Alignment.topLeft,
                end: Alignment.bottomRight,
              ),
            ),
        child: widget.child,
      ),
    );
  }

  @override
  void dispose() {
    _animationController.dispose();
    super.dispose();
  }
}

万年素人からHackerへの道

万年素人がHackerになれるまで殴り書きするぜ。

Viewカードの手順

SwiftUI徹底入門　サンプルダウンロード

ビルド失敗

スクロールを表示

slider