Jetpack Compose align Text content to center of the Scaffold

Question

My Problem:

I want to place my Text() content to center of the page in Scaffold.

I tried "textAlign = TextAlign.Center" - It align the text in horizontal area alone. Not align the text in vertical area.

My code:

@Composable fun ScaffoldWithTopBar() { Scaffold( topBar = { TopAppBar( title = { Text(text = "Top App Bar") }, navigationIcon = { IconButton(onClick = {}) { Icon(Icons.Filled.ArrowBack, "backIcon") } }, backgroundColor = MaterialTheme.colors.primary, contentColor = Color.White, elevation = 10.dp ) }, content = { Column( modifier = Modifier .fillMaxSize() .background(Color(0xff8d6e63)), verticalArrangement = Arrangement.Center, horizontalAlignment = Alignment.CenterHorizontally ) { } Text( text = "Content of the page", fontSize = 30.sp, color = Color.White ) }) }

Note: I haven't place this text into Column. I used directly.

My output:

Question: How to place the text into the center of the parent?

Check also: stackoverflow.com/questions/59713224/…

Gabriele Mariotti
– Gabriele Mariotti

2021-08-25 06:51:53 +00:00
Commented Aug 25, 2021 at 6:51 — Gabriele Mariotti
– Gabriele Mariotti, Commented Aug 25, 2021 at 6:51

Gabriele Mariotti · Accepted Answer · 2021-08-25 06:56:42Z

Assign the fillMaxSize() to the parent container, not to the Text:

 Box(Modifier.fillMaxSize(), contentAlignment = Center ) { Text( text = "Content of the page", fontSize = 30.sp, modifier = Modifier .background(Color(0xffb3e5fc)), ) }

or:

Column(Modifier.fillMaxSize(), verticalArrangement = Arrangement.Center, horizontalAlignment = Alignment.CenterHorizontally ) { Text( text = "Content of the page", fontSize = 30.sp, modifier = Modifier .background(Color(0xffb3e5fc)), ) }

Thanks! You are helping our community. My doubt - without container (Column) it will not work?
I updated code in my question. If possible can you check my code?
@RanjithKumar in the new code, you are using the Text outside the Column

Phil Dukhov · Accepted Answer · 2021-08-25 06:51:06Z

You need to place it inside a Box, and specify contentAlignment

Box( contentAlignment = Alignment.Center, modifier = Modifier .fillMaxSize() ) { Text( text = "Content of the page", fontSize = 30.sp, modifier = Modifier .background(Color(0xffb3e5fc)), ) }

If you wanna align different Box children differently, you can use .align modifier for each item. Note that it's only available inside BoxScope, also there's same modifier for Column and Row.

Box( modifier = Modifier .fillMaxSize() ) { Text( text = "Content of the page", textAlign = TextAlign.Center, fontSize = 30.sp, modifier = Modifier .background(Color(0xffb3e5fc)) .align(Alignment.Center) ) }

align modifier not available in compose version 1.0.1. Without any container it will not work ?
@RanjithKumar yes, it's BoxScope modifier, you still need to place your item inside a Box

Android Developer · Accepted Answer · 2021-12-15 15:10:59Z

Box( modifier = Modifier .fillMaxSize() ) { Text( text = stringResource(id = R.string.social_list_empty), style = TextStyle(fontSize = 16.sp), modifier = Modifier .padding(8.dp) .align(Alignment.Center), textAlign = TextAlign.Center ) }

Reference : For more sample codes of Jetpack Compose, check this

Freddie · Accepted Answer · 2021-11-25 23:49:34Z

The content in Scaffold is a Composable function in which there is no position info for items by default. In your case, the default position of Text is the top left of its parent view. The solutions putting the Text inside the Box/Colum works, as now Text is put in the center of the Box or Colum, which takes the whole screen. We see Text is in the center of the screen, while the truth is Text is in the center of Box or Colum.

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