CODEWITHSUNDEEP
androidandroid-jetpackandroid-jetpack-navigationandroid-jetpack-compose
Sweta Jain
Sweta Jain

Reputation: 4314

How to navigate from a Composable to an Activity in Jetpack Compose?

What are the ways in which navigation is possible between a composable and an Activity and vice versa? Can I do it by using the startActivity(...) method or is the only way to create Screens and NavController?

Android Studio Screenshot

Upvotes: 52

Views: 64372

Answers (4)

nipa
nipa

Reputation: 39

startNewActivity is a function pass context , any class and Bundle it can be null ,

.clickable { startNewActivity(context,DetailsActivity::class.java) },

   fun  startNewActivity(context: Context,activityClass: Class<*>, bundle: Bundle? = null){
                val intent = Intent(context, activityClass)
            bundle.let {    intent.putExtras(bundle!!) }
                context.startActivity(intent)
            }

Upvotes: 0

Linh
Linh

Reputation: 60913

Instead of using LocalContext.current to navigate to another Activity from a Composable you can pass the onClick callback to Activity/Fragment and navigate like before. Here is an example:

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            AndroidTheme {
                Surface(...) {
                    Greeting (onClick = {
                        // this here is MainActivity
                        startDetailActivity()
                    })
                }
            }
        }
    }

    fun startDetailActivity() {
        val intent = Intent(this, DetailActivity::class.java)
        startActivity(intent)
    }
}

@Composable
fun Greeting(onClick: () -> Unit) {
    
    Button(onClick = onClick) {
        Text(text = "Button")
    }
}

Upvotes: 4

Aystub
Aystub

Reputation: 1642

In newer version of compose use LocalContext.
In older versions (1.0.0-alpha08 and before) use AmbientContext:

@Composable
fun MainScreen() {
    val context = LocalContext.current

    Button(onClick = {
        context.startActivity(Intent(context, ListActivity::class.java))
    }) {
        Text(text = "Show List")
    }
}

Upvotes: 109

Andrew Kornovan
Andrew Kornovan

Reputation: 111

Here's how I usually do it (and pass values to another activity):

val context = LocalContext.current
...
onClick = {
    val intent = Intent(context, ListActivity::class.java)
    intent.putExtra(YourExtraKey, YourExtraValue)
    context.startActivity(intent)
}

Upvotes: 11

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