What's the reason this works: ```val context = ContextAmbient.current Card(modifier = Modifier.paddi...

# compose

[bohregard]

What's the reason this works:

val context = ContextAmbient.current
Card(modifier = Modifier.padding(8.dp) + Modifier.fillMaxWidth()) {
        Button(onClick = {
            Log.d(TAG, "Test")
            Toast.makeText(context, "Toast me bro", Toast.LENGTH_SHORT)
                .show()
        }) {
            Text(text = "Test")
        }
    }
}

but this doesn't

Card(modifier = Modifier.padding(8.dp) + Modifier.fillMaxWidth()) {
        Button(onClick = {
            Log.d(TAG, "Test")
            Toast.makeText(ContextAmbient.current, "Toast me bro", Toast.LENGTH_SHORT)
                .show()
        }) {
            Text(text = "Test")
        }
    }
}

[Adam Powell]

Think of ambients as being kind of like a ThreadLocal, but local to your current point in the composition instead. onClick doesn't run until long after the composition has finished, when the user actually clicks the button. Trying to read ContextAmbient.current then is kind of like having a background thread try to read a ThreadLocal that was set on the main thread; they're in scopes that you can't reach across.

[bohregard]

Gotchya, that makes sense. Thanks for the answer!