Giter Site home page Giter Site logo

flutter_programming's People

Contributors

yudong80 avatar

Stargazers

 avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar

Watchers

 avatar  avatar  avatar  avatar  avatar

flutter_programming's Issues

잘못된 지하철역명을 입력했을 떄 error처리 문제

유동환님의 플러터책보고 공공API 앱을 따라해 보고 있습니다.
( Android , 갤탭)

Issue : 지하철실시간정보 ( page_subway_info.dart ) 를 따라하는 과정에서 , 지하철역 이름을 전혀 엉뚱하게 입력해 응답된 data가 없는 경우의 처리부가 전혀 동작되고 있지 않습니다.

step 1 : 광화문 , 시청등 입력 ( 정상 )
step 2: 뉴욕역 입력 -> error

[ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: NoSuchMethodError: The method '[]' was called on null.
Receiver: null
Tried calling:
....<생략>....

감사합니다.

[email protected]

책 예제소스 오류 문의

책 잘 보고 있습니다.

실습중에 오류가 있어 문의를 드립니다.

162 페이지 5.2 동적 routes 활용 부분에서 아래 부분을 해결하지 못해 이슈를 올립니다.

오류발생
Contact c = settings.arguments;

오류내용
A value of type 'Object?' can't be assigned to a variable of type 'Contact'. (Documentation) Try changing the type of the variable, or casting the right-hand type to 'Contact'.

image

예제를 돌려보려고 하는 데 hello_flutter 말고는 이렇게 뜨네요

image
android부분의 빨간 줄 같은 경우에는 setting.gradle 더블클릭했더니 그냥 생겼구요..

image
그걸 안하고 다른 파일들을 열어보면 이 사진처럼 avd는 찾아지고 켤 수 있는데 Run버튼 부근 버튼 들이 활성화가 안되네요!

혹시 해결 방법을 알려주신다면 감사하겠습니다~~

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google ❤️ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.