Curved Text in Android using Jetpack Compose
Last Updated : 29 Mar, 2022
In Android, there are no inbuilt schemes to implement designed text like the word art, which is available in applications like MS Word. We can always refer to or download such schemes like designed font faces to implement designed text. However, it is also possible to natively build (building from scratch) such designed texts in an Android Project.
So in this article, we will show you how you could create a Curved Text in Android using Jetpack Compose. Follow the below steps once the IDE is ready.
Step by Step Implementation
Step 1: Create a New Project in Android Studio
To create a new project in Android Studio please refer to How to Create/Start a New Project in Android Studio. While choosing the template, select Empty Compose Activity. If you do not find this template, try upgrading the Android Studio to the latest version. We demonstrated the application in Kotlin, so make sure you select Kotlin as the primary language while creating a New Project.
Step 2: Working with the MainActivity.kt file
Go to the MainActivity.kt file and refer to the following code. Below is the code for the MainActivity.kt file. Comments are added inside the code to understand the code in more detail.
Kotlin package com.geeksforgeeks.jccurvedtext import android.graphics.Paint import android.graphics.Path import android.os.Bundle import androidx.activity.ComponentActivity import androidx.activity.compose.setContent import androidx.compose.foundation.Canvas import androidx.compose.foundation.layout.Arrangement import androidx.compose.foundation.layout.Column import androidx.compose.foundation.layout.fillMaxSize import androidx.compose.foundation.layout.size import androidx.compose.material.* import androidx.compose.runtime.Composable import androidx.compose.ui.Alignment import androidx.compose.ui.Modifier import androidx.compose.ui.graphics.Color import androidx.compose.ui.graphics.drawscope.drawIntoCanvas import androidx.compose.ui.graphics.nativeCanvas import androidx.compose.ui.tooling.preview.Preview import androidx.compose.ui.unit.dp import androidx.compose.ui.unit.sp class MainActivity : ComponentActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContent { // Calling the composable function // to display element and its contents MainContent() } } } // Creating a composable // function to display Top Bar @Composable fun MainContent() { Scaffold( topBar = { TopAppBar(title = { Text("GFG | Curved Text", color = Color.White) }, backgroundColor = Color(0xff0f9d58)) }, content = { MyContent() } ) } // Creating a composable function to // create a canvas to draw curved text // Calling this function as content // in the above function @Composable fun MyContent(){ Column(Modifier.fillMaxSize(), horizontalAlignment = Alignment.CenterHorizontally, verticalArrangement = Arrangement.Center) { // Creating a canvas with various attributes Canvas(modifier = Modifier.size(300.dp)) { drawIntoCanvas { val textPadding = 30.dp.toPx() val arcHeight = 300.dp.toPx() val arcWidth = 300.dp.toPx() // Path for curved text val path = Path().apply { addArc(0f, textPadding, arcWidth, arcHeight, 180f, 180f) } it.nativeCanvas.drawTextOnPath( "Hello Geek! This is Curved Text.", path, 0f, 0f, Paint().apply { textSize = 20.sp.toPx() textAlign = Paint.Align.CENTER } ) } } } } // For displaying preview in // the Android Studio IDE emulator @Preview(showBackground = true) @Composable fun DefaultPreview() { MainContent() } Output:
In the below screenshot of the application, you can see that the text that we entered inside the program has followed a curved path.
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