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FRAMEIO APP HOW TO
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Restartable: Meaning that this composable can serve as a restarting scope. This has implications for the Composable function, which is now marked as: The compiler reports will generate the results above for the StableComposable composable function.įirst off, you see that because the data class has all of its (in this case a single) parameters marked as stable, its runtime stability is deemed to be stable as well. Now, let's generate compiler reports for the example above and analyze the results: Let's create a stable class and Composable function like the example below: For now, you only need to care about the implications and not the mechanics, so you'll just analyze the results. Let's create pairs of classes and Composables and generate a Compose compiler report for them. If Compose is able to guarantee stability, it can grant certain performance benefits to a Composable, chiefly, it can mark it as skippable. Now let’s see how those stability types work with real-world examples. Since the data never changes, Compose can treat this as stable data.

Immutable: As the name suggests, these hold data that is immutable.

This renders them stable since Composition is always informed of any changes to state.

Stable: These hold data that is mutable, but notify Composition upon mutating.

Compose is unable to validate that these have not changed.

Unstable: These hold data that is mutable and do not notify Composition upon mutating.

To optimize runtime performance, Jetpack Compose relies on being able to infer if a state that is being read has changed.įundamentally, there are three stability types below: Jetpack Compose has its dedicated runtime and it decides which Composable function should be recomposed when their inputs or states change. Now, let’s see how you can optimize the recomposition expenses. To optimize recomposition, Compose runtime contains the smart optimization system, which skips all functions for lambdas that don’t have changed parameters and eventually, Compose can recompose efficiently.įor more information, check out Jetpack Compose Phases.

FRAMEIO APP UPDATE

You can imagine that you should update entire items on RecyclerView when you need to update a single item. However, recomposing the entire UI tree and elements is expensive computations. Recomposition is the process of running your composable functions again from the Composition phase when the function’s inputs change. Drawing: UI elements will be drawn on a Canvas.Layout: Compose measure and commutates UI information on where to place the UI elements, for each node in the layout tree.Compose run composable functions and analyze your UI information.

Composition: This is the first phase of the rendering.Jetpack Compose renders a frame following the three distinct phases: If you want to learn more about the entire guidelines, check out Stream’s Compose SDK Guidelines.īefore you dive in, let's see how Jetpack Compose compiler renders UI elements in the runtime.

FRAMEIO APP HOW TO

In this article, you will learn about the overall rendering process of Jetpack Compose and how to optimize your app performance following Jetpack Compose guidelines that were built by Stream’s Compose team.

Jetpack Compose has a dedicated optimization system but it's essential to understand the rendering mechanism of Jetpack Compose for improving your app performance properly.

FRAMEIO APP CODE

According to Google’s What developers are saying, Jetpack Compose increases their productivity and code quality.

Since Google announced Jetpack Compose stable 1.0, many companies are getting started to adopt Jetpack Compose into their projects.