Flutter's Logging Facilities

Flutter has built-in logging support through the dart:developer library, which provides several logging facilities that can be used to output messages to the console during development. These facilities include:

• print(): This is the simplest logging facility and can be used to output messages to the console using the print() function.
• debugPrint(): This function works like print(), but it only outputs messages when the app is running in debug mode.
• debugDumpApp(): This function can be used to output a detailed tree of the widget hierarchy to the console, which can be helpful for debugging layout issues.
• debugDumpRenderTree(): This function can be used to output a detailed tree of the rendering hierarchy to the console, which can be helpful for debugging rendering issues.
• debugDumpLayerTree(): This function can be used to output a detailed tree of the compositing layers of the app, which can be helpful for debugging performance issues.

Additionally to the dart:developer library, There are more advanced logging libraries like:

• logger : it's a simple, lightweight and extensible logging library for flutter.
• logging : A library for hierarchical, extensible logging. It allows you to output to console, file, memory or any other sink
• flutter_sentry : it's a flutter plugin that allows to send logs, events and reports to the Sentry.io

You can find more information on these and other logging facilities in the Flutter documentation:

• https://api.dart.dev/stable/2.9.2/dart-developer/dart-developer-library.html
• https://flutter.dev/docs/testing/errors

Using the logging view: