Android Compose – Button Background Color

Android Compose – Button Background Color

In this tutorial, we will learn how to set a background color for a Button in Android Compose.

To set background color for a Button in Android Jetpack Compose, set colors parameter with the required ButtonColors value.

Button(colors = buttonDefaults.outlinedButtonColors(backgroundColor = Color.Black),)

buttonDefaults.outlinedButtonColors() returns ButtonColors object with given background color value.

Example

In this example, we have UI with a Button. The button has the text Submit. And we set an yellow background color for this Button using colors parameter.

Create a Project in Android Studio with empty compose activity template, and modify MainActivity.kt file as shown in the following.

MainActivity.kt

package com.example.myapplication

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.layout.*
import androidx.compose.material.Button
import androidx.compose.material.ButtonDefaults
import androidx.compose.material.Text
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.unit.dp
import com.example.myapplication.ui.theme.MyApplicationTheme

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            MyApplicationTheme {
                Column(
                    horizontalAlignment = Alignment.CenterHorizontally,
                    modifier = Modifier
                        .padding(20.dp)
                        .fillMaxWidth()) {
                    val context = LocalContext.current
                    Button(
                        colors = ButtonDefaults.outlinedButtonColors(backgroundColor = Color.Yellow),
                        onClick = {}
                    ) {
                        Text("Submit")
                    }
                }
            }
        }
    }
}

Screenshot

Compose Button with black background color

Now, let us change the background color of the button to black.

Code for Button

Button(
    colors = ButtonDefaults.outlinedButtonColors(backgroundColor = Color.Black),
    onClick = {},
) {
    Text("Submit",
        color = Color.White,
    )
}

Screenshot

Conclusion

In this Android Jetpack Compose Tutorial, we learned how to set background color for a Button using colors parameter.