Jetpack Glance 1.0.0-alpha03中如何为GlanceModifier设置weight？无该修饰符时的替代方案

Hey there! I feel your pain—back in Glance 1.0.0-alpha03, the GlanceModifier didn’t include a weight modifier yet, which made that familiar Compose layout pattern tricky to replicate. But don’t worry, there’s a straightforward workaround that achieves exactly the result you’re aiming for.

The Core Idea #

To mimic the weight(1f) behavior for your Text in a Row, you’ll leverage the fillMaxWidth() modifier along with how Glance’s Row allocates space:

• First, make sure your parent Row fills the entire available width using GlanceModifier.fillMaxWidth().
• Apply GlanceModifier.fillMaxWidth() to your Text—this will make it consume all remaining space in the Row after accounting for the Image’s intrinsic size.
• Leave your Image without any explicit width modifier (it’ll default to wrapping its content, just like you’d want).

Example Code #

Here’s how your adjusted code would look:

Row(modifier = GlanceModifier.fillMaxWidth()) {
    Text(
        text = "Test text",
        modifier = GlanceModifier.fillMaxWidth()
    )
    Image(
        painter = painterResource(id = R.drawable.your_image_resource),
        contentDescription = "Your image description"
        // No width modifier needed—Image will take its natural size
    )
}

For Multiple Elements Needing Proportional Space #

If you ever need to split space between multiple elements (instead of one taking all remaining space), you can use fillMaxWidth(fraction = X) where X is a decimal between 0 and 1. For example, to split space 60/40 between two texts:

Row(modifier = GlanceModifier.fillMaxWidth()) {
    Text(
        text = "First text",
        modifier = GlanceModifier.fillMaxWidth(0.6f)
    )
    Text(
        text = "Second text",
        modifier = GlanceModifier.fillMaxWidth(0.4f)
    )
}

This approach was the best practice for early Glance alpha versions before the weight modifier was added in later releases. It’s simple, reliable, and gives you the exact layout control you need.

内容的提问来源于stack exchange，提问作者jc12