androidx.compose.runtime.livedata
Extension functions summary
For LiveData | |
State<T?> |
LiveData<T>.observeAsState() Starts observing this LiveData and represents its values via State. |
State<R> |
LiveData<T>.observeAsState(initial: R) Starts observing this LiveData and represents its values via State. |
Extension functions
observeAsState
@Composable fun <T> LiveData<T>.observeAsState(): State<T?>
Starts observing this LiveData and represents its values via State. Every time there would be new value posted into the LiveData the returned State will be updated causing recomposition of every State.value usage.
The inner observer will automatically be removed when this composable disposes or the current LifecycleOwner moves to the Lifecycle.State.DESTROYED state.
import androidx.compose.material.Text import androidx.compose.runtime.livedata.observeAsState val value: String? by liveData.observeAsState() Text("Value is $value")
observeAsState
@Composable fun <R, T : R> LiveData<T>.observeAsState(initial: R): State<R>
Starts observing this LiveData and represents its values via State. Every time there would be new value posted into the LiveData the returned State will be updated causing recomposition of every State.value usage.
The inner observer will automatically be removed when this composable disposes or the current LifecycleOwner moves to the Lifecycle.State.DESTROYED state.
import androidx.compose.material.Text import androidx.compose.runtime.livedata.observeAsState val value: String by liveData.observeAsState("initial") Text("Value is $value")