You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
samples/jsonexample
Brett Morgan d55132b2d4
Update runners (#2011)
1 year ago
..
android Flutter beta (#1952) 1 year ago
ios Update runners (#2011) 1 year ago
lib Explicit import for Platform and kIsWeb (#1898) 1 year ago
linux Update `sdk` constraint range and update runners (#1706) 2 years ago
macos Update runners (#2011) 1 year ago
test Remove unneeded types (#949) 3 years ago
web Flutter beta (#1952) 1 year ago
windows Flutter beta (#1952) 1 year ago
.gitignore Maintenance on jsonexample (#205) 5 years ago
.metadata Update runners (#2011) 1 year ago
README.md Maintenance on jsonexample (#205) 5 years ago
analysis_options.yaml Create `analysis_defaults` package (#1654) 2 years ago
build.yaml Maintenance on jsonexample (#205) 5 years ago
codelab_rebuild.yaml Flutter 3.7.0 (#1556) 2 years ago
pubspec.yaml Update for 3.13 stable (#1992) 1 year ago

README.md

jsonexample

A Flutter sample app that deserializes a set of JSON strings using three different libraries: dart:convert, json_serializable, and built_value.

Goals for this sample

  • Help you decide which of the three most common libraries for deserializing JSON is right for your project.
  • Provide you with example code for deserializing:
    • Simple and nested objects
    • Lists of primitive values
    • Maps containing primitive values

The important bits

json_strings.dart

The actual JSON to be deserialized.

dart_convert/json_serializable/dart_convert

These folders contain code used to deserialize the simple and complex object models using one of the three libraries. They do the work of instantiating models and populating their fields.

tab_pages.dart

Each tab page in the app deserializes one type of data with one library. These Widgets show what app code using the above libraries might look like.

Generating

The lib/build_value and lib/json_serializable use build_runner to generate files. If you make a change to these files, you need to re-run the generator using build_runner:

flutter pub run build_runner build

Questions/issues

If you have a general question about JSON serialization in Flutter, the best places to go are:

If you run into an issue with the sample itself, please file an issue in the main Flutter repo.