How to set the Scaffold Drawer Width in JetpackCompose?

Question

We can have Navigation Drawer in JetpackCompose by using Scaffold as below

Scaffold(
    drawerContent = { Text(text ="Drawer") }
) {}

I want to make the width of the drawer smaller. How can I do so?

I created a bug report for this: issuetracker.google.com/issues/177799274 — noe
– noe, Commented Jan 18, 2021 at 15:12

Kofi · Accepted Answer · 2021-10-08 08:57:41Z

12

You can modify the shape (including width and height) using drawerShape parameter in Scaffold method.

So for instance

 Scaffold(
    scaffoldState = scaffoldState,
    drawerContent = { Text("Drawer content") },
    drawerShape = customShape(),
    content = {inner padding -> /* Body*/}
)

Then your customShape function

fun customShape() =  object : Shape {
    override fun createOutline(
        size: Size,
        layoutDirection: LayoutDirection,
        density: Density
        ): Outline {
            return Outline.Rectangle(Rect(0f,0f,100f /* width */, 131f /* height */))
     }
 }

You can also use Outline.Rounded to get rounded corners

edited Oct 8, 2021 at 8:57

answered Aug 27, 2021 at 18:14

Kofi

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10 Comments

kabumere Over a year ago

May be the best solution at the moment until a property for modifying drawer width is hopefully added to Scaffold. My only worry is if creating a Shape inside Composable functions could lead to slowdowns. I've tested that the above code works, but haven't profiled it yet in a real app.

Kofi Over a year ago

@kabumere I don't think it would slow down the app since internally, various composable functions use Material shapes (including the default drawerShape here; I'll check my pc and get the actual shape) which are actually functions similar to what I provided. Nonetheless, you can always make customShape a val and not a fun so the Shape object would be created once

kabumere Over a year ago

Yeah, mine was a val inside of a Composable function. I just started using Compose, so I guess I'm still wrapping my head around what gets re-called during recomposition and what doesn't.

BigDan Over a year ago

This work if you want the drawer to be smaller. but if you want it to be larger (ex: full screen width). The drawer looks like it is larger but the content is still limited. All is truncaded. Any one have any idea on how to solves that ?

mikeorr85 Over a year ago

@kc_dev return Outline.Rectangle(Rect(0f,0f,100f /* width */, size /* height */))

|

Vahe Gharibyan · Accepted Answer · 2023-01-04 07:14:18Z

Here is an example drawing a Scaffold custom shape.

1. Spec exact size.

Scaffold(
    drawerShape = NavShape(400.dp, 0f)
)

2. Spec size by percent (half screen).

Scaffold(
    drawerShape = NavShape(0.dp, 0.5f)
)

Custom shape class

class NavShape(
    private val widthOffset: Dp,
    private val scale: Float
) : Shape {

    override fun createOutline(
        size: Size,
        layoutDirection: LayoutDirection,
        density: Density
    ): Outline {
        return Outline.Rectangle(
            Rect(
                Offset.Zero,
                Offset(
                    size.width * scale + with(density) { widthOffset.toPx() },
                    size.height
                )
            )
        )
    }
}

Bréndal Teixeira · Accepted Answer · 2022-12-02 09:21:04Z

0

I accomplished that by:

#1 - Setting to the Drawer's content Modifier a max width:

@Composable
fun MyDrawerContent(){
     Column(Modifier.fillMaxHeight().width(300.dp)) {
          ...

#2 - Setting the Scafold's drawer colors to Transparent + no Elevation

Scaffold(
     drawerBackgroundColor = Color.Transparent,
     drawerContentColor = Color.Transparent,
     drawerElevation = 0.dp,
     drawerContent = {
          MyDrawerContent()
     },
     ...

Note: Only problem I faced is if you touch on the transparent area the drawer does not closes as it used to. Siding it to close works perfectly though. It's a workaround...

answered Dec 2, 2022 at 9:21

Bréndal Teixeira

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Comments

CyrilFind · Accepted Answer · 2020-12-15 13:41:44Z

-4

Have you tried adding a modifier inside your drawer composable ?

Something like this:

Scaffold(drawerContent = { 
        Box(modifier = Modifier.fillMaxWidth(0.9f){
            Text(text = "Drawer") 
        }
    }) {}

answered Dec 15, 2020 at 13:41

CyrilFind

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3 Comments

Elye Over a year ago

It doesn't work :(. This just set the content width within the drawer. The drawer width is still the same.

CyrilFind Over a year ago

@Elye ah right, maybe don't use Scaffold but ModalDrawerLayout directly, that way you can use its modifier

Sparsh Dutta Over a year ago

@ CyrilFind, It won't work with Modal drawer. Modal drawer represents the entire screen along with nav menu, not just the nav menu.

Mohamed Tamer · Accepted Answer · 2022-01-12 20:23:58Z

-4

Scaffold(
      topBar = {
          topBar()
      },
      scaffoldState = scaffoldState,
      drawerContent = {
          drawer()
      },
      drawerGesturesEnabled = true
  ) { innerPadding ->
      NavigationHost(navController = navController)
  }
}

answered Jan 12, 2022 at 20:23

Mohamed Tamer

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