Introduction
Welcome back! Today, we are diving into Jetpack Compose and tackling an interesting challenge – creating a sticky footer for your LazyColumn
.
Watch the Video Tutorial
If you prefer a step-by-step walkthrough, watch the video tutorial below:
Why No Sticky Footer API?
Jetpack Compose doesn’t have a dedicated API for sticky footers, but don’t worry! We’ll show you how to build it without using a Box. In Compose, you have a LazyColumn
with a useful sticky header feature, but there’s no built-in solution for a sticky footer.
Sticky Footer Challenge in Jetpack Compose
If you’ve been wondering how to implement a sticky footer, we’ve got you covered. Instead of relying on Box
, we’ll take a different approach.
Alternative Approach Without Box
To achieve this, we place the footer directly within the layout hierarchy instead of wrapping everything in a Box
. We’ll structure our LazyColumn
and footer separately but still align the footer at the bottom of the screen.
Compose Modifiers
Here’s our plan:
- Use a
Column
as the root composable. - Place the
LazyColumn
inside it. - Add a separate footer component.
- Ensure it stays at the bottom using modifiers.
Adding Footer
Now, let’s modify our layout to add a footer inside the Column
.
Column {
LazyColumn(
modifier = Modifier.weight(1f)
) {
items(50) { index ->
Text("Item $index")
}
}
Footer()
}
Weight Modifier
Notice the Modifier.weight(1f)
on the LazyColumn
. This ensures the list takes up all available space, pushing the footer to the bottom.
Working Sticky Footer
With this setup, we have achieved a working sticky footer. The list scrolls while the footer stays fixed at the bottom.
Recap
Instead of using Box
, we:
- Used a
Column
composable. - Gave the
LazyColumn
aweight(1f)
modifier. - Placed the footer outside the scrolling area.
This ensures a clean layout without unnecessary nesting.
Thanks for tuning! Until next time, happy coding!
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