ideahas.blogg.se - Android studio listview delete item

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Position last flex item at the end of container.

public class M圜ustomAdapter extends BaseAdapter implements ListAdapter does not exist Next you will need to create a Custom ArrayAdapter Class which you will use to inflate your xml layout, as well as handle your buttons and on click events. You will add your two buttons to this layout along with any other items you want to display from your list. This is what I use in my apps and it works for me.You will first need to create a custom layout xml which will represent a single item in your list.

(The view model class is assigned to the BindingContext in the view's constructor.)ĭo you have a more complete sample of code? said: In my view model, the ObservableCollection collection is named Projects. I adapted and used this code in my project, but I receive an exception when I launch the containing view. Public ObservableCollection Users => īut I believe that this approach is not the one that should be used in MVVM, since I have some logic in the Model. Public MainPageViewModel(INavigationService navigationService, IPageDialogService dialogService) Public DelegateCommand DeleteCommand => _deleteCommand ? (_deleteCommand = new DelegateCommand(DeleteUser)) Public ObservableCollection Users => _users

Here's my ListView: Īnd the corresponding ViewModel (I removed some code to save space): public class MainPageViewModel : BindableBase, INavigatedAware I use Prism with Unity for MVVM, if this is of any importance. Binding the SelectedItem of the ListView does not help, since a long tap on Android or a swipe on iOS don't select the item. Hi, I am new to Xamarin, Forms and MVVM, so this might sound a little dumb, but what is the proper way to delete an item from a ListView? I tried to do it with a ContextAction, but I can't figure a way to know in my ViewModel which item to delete from the ObservableCollection.