Common mistakes when working with ViewModel?

Common mistakes when working with ViewModel in Android can lead to inefficient architecture and bugs. This article highlights frequent pitfalls and best practices for using ViewModels effectively.

Android, ViewModel, mistakes, architecture, best practices, Android development


// Example of a common mistake: Retaining data in ViewModel unnecessarily
public class MyViewModel extends ViewModel {
    private MutableLiveData> dataList;

    public LiveData> getDataList() {
        if (dataList == null) {
            dataList = new MutableLiveData<>();
            loadData();
        }
        return dataList;
    }

    // Method to load data from a repository
    private void loadData() {
        // Fetch data asynchronously and post value to dataList...
    }
}

// Mistake: Not clearing up resources in ViewModel
@Override
protected void onCleared() {
    super.onCleared();
    // Don't forget to clean up if you have listeners or any ongoing processes
    // Example: yourLiveData.removeObserver(yourObserver);
}
    

Android ViewModel mistakes architecture best practices Android development