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Commonly, we manage the state logic in an Android ViewModel by applying MVI or MVVM, and we may combine a number of asynchronous data elements to create the state of the view. Some of this data does not change, some are immediately available, and some change over time.

However, it is important to keep in mind that the task of combining reactive flows becomes more complex as the data sources and logic involved increase, making the code more difficult to understand.

Fortunately, thanks to Compose and Molecule, we can build the state object using imperative code and expose it reactively.

What is Molecule?

Molecule is a Kotlin compiler plugin that uses Jetpack Compose to continuously recompose itself and build a StateFlow or Flow. Like Jetpack Compose, Molecule relies on a frame clock, such as the MonotonicFrameClock, to synchronize its recomposition process with the rendering of frames. There are two types

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