Method Swizzling in Dart Flutter

[Sandeep Madineni]

Is it possible to do method swizzling in Dart ? 

Basically, I would like to listen to all button clicks in entire flutter application and use it to send events for Analytics.

Is it possible to do this ? can some one shed some light on this ?

[Slava Egorov]

The answer is no. There is no reliable builtin way to hook into method dispatch. 

That being said, there are various methods in Flutter to listen to all incoming tap events - the most low level one is to replace onPointerDataPacket[1] callback. Talk to somebody who knows Flutter internals - they might recommend other ways.

[1]: https://api.flutter.dev/flutter/dart-ui/PlatformDispatcher/onPointerDataPacket.html

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[Chris Norman]

I suspect the "proper" way is to wrap each button in a custom widget which sends the analytics, but I don't know how much work that'll be.

Take care,

Chris Norman

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