Reading the source code (currently beta09), I find...

# compose

[eneim]

Reading the source code (currently beta09), I find that the WrappedComposition will dispose when the lifecycle is destroyed (lifecycle event ON_DESTROY is observed). Considering that the onDestroy callback of an Activity may not be called in some critical situations, I wonder why the ON_STOP event is not a better choice? (Not sure if it is appropriate to ping @Ian Lake for this question …)

[Adam Powell]

those critical situations are when the process is being killed, at which point gracefully disposing of the composition is not necessary