Add a mechanism to pause rebuild widget when using ref.watch

[lcdsmao]

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Is your feature request related to a problem? Please describe. Assume we have a StateNotifierProvider fooProvider. Mulitple pages depend on fooProvider. If we have a deep back stack like: PageA -> PageB -> PageC -> PageD and all of these pages depend on fooProvider via ref.watch(fooProvider). Then any state change of fooProvider will rigger all of these pages rebuild, which has a performance problem.

Describe the solution you'd like I am thinking of providing a new widget that can control the ref.watch behavior in the widget subtree (inspired by TickerMode). The enable/disable logic can be implemented by ourselves or by riverpod if possible. For example, control via the VisibilityDetector.

Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.

Additional context Add any other context or screenshots about the feature request here.

[rrousselGit]

Would it be alright to use TickerMode directly instead of adding something new? Such that when tickers are muted, ref.watch subscriptions are paused too

[lcdsmao]

Would it be alright to use TickerMode directly instead of adding something new?

Sounds good! I hadn't noticed TickerMode was used in Overlay and other widgets before searching the flutter repo.