Coroutines provide a powerful way to manage asynchronous programming in Android. Here are some best practices to consider when implementing coroutines in your Android apps:
viewModelScope
for ViewModels and lifecycleScope
for Activities and Fragments to automatically manage the lifecycle of coroutines.Dispatchers.IO
for network operations, Dispatchers.Default
for CPU-intensive work, and Dispatchers.Main
for updating the UI.
import kotlinx.coroutines.*
class ExampleViewModel : ViewModel() {
fun fetchData() {
viewModelScope.launch {
try {
val result = withContext(Dispatchers.IO) {
// Simulating a network operation
fetchDataFromNetwork()
}
// Update UI with the fetched data
updateUI(result)
} catch (e: Exception) {
// Handle the exception
handleError(e)
}
}
}
private suspend fun fetchDataFromNetwork(): String {
// Simulate a delay for the network call
delay(1000)
return "Network Data"
}
private fun updateUI(data: String) {
// Update the UI with data
}
private fun handleError(exception: Exception) {
// Handle the exception
}
}
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