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Hello World Compose

Setup the project

First setup your Project Setup

Write a simple Compose function

A basic Compose View is using a normal Kotlin function which is annotated with @Composable

@Composable
fun HelloWorld() {
   Text("Hello World!")
}

Use a Compose function as a view in your android app

To use the HelloWorld() function in your App you have to use the setContent() extension function inside a onCreate() in an Activity.

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        setContent {
                HelloWorld()
        }
    }
}

Last update: September 21, 2020
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