listview

问题 I'm trying to make a Listview whose top element should have a different UI then the rest. And the Listview is scrollable so the item which is visible and at the top of the list should be highlighted with different UI. Refer to this image. I want when I scroll through the list the top item at that instant should have a different UI ( the highlighted orange color). How can I do this in flutter? 回答1: This is still an open Github issue about this. However, there are some packages here that can

问题 I've whittled my login page down to a single NavigationLink that leads to a List view as its destination. The problem, as you can see in the image below, is that instead of the nicely spaced title on the left, I get the huge space as shown on the right. Both views are the same, but the one on the right is the preview of the page as it was designed. The image on the left is the preview of the page after coming from the login screen. struct ContentView: View { var body: some View {

问题 I've whittled my login page down to a single NavigationLink that leads to a List view as its destination. The problem, as you can see in the image below, is that instead of the nicely spaced title on the left, I get the huge space as shown on the right. Both views are the same, but the one on the right is the preview of the page as it was designed. The image on the left is the preview of the page after coming from the login screen. struct ContentView: View { var body: some View {

问题 I have a bunch of files listed within a listview, and I want to know is it possible to drag and drop the files to Windows Explorer? If so how? I only seem to find examples of the other way around. Thanks! 回答1: So here's what I did. First off, in your listview, create an event handler for ItemDrag. Then the following.. private void listView_ItemDrag(object sender, ItemDragEventArgs e) { List<string> selection = new List<string>(); foreach (ListViewItem item in listView.SelectedItems) { int

问题 My ListView Mouse Over define as transparent but the result is half transparent : Same with Selected : Define Blue but has 2 colors. Why is that ? Edit <ListView Name="llistview" Background="Transparent" BorderThickness="0,1,0,0" ItemsSource="{Binding collection}" MouseDoubleClick="llistview_MouseDoubleClick" MouseLeftButtonDown="llistview_MouseLeftButtonDown" Margin="0,176,0,166" BorderBrush="Gainsboro" ScrollViewer.HorizontalScrollBarVisibility="Disabled"> <ListView.ItemContainerStyle>

问题 in my Flutter app I want to display multiple items inside a listView and I want to handle their state using Provider. but how can I handle the state in a way that if I edit one item in the listview only that item get rebuild. and the entire listview get rebuild only when I change the number of items either by adding or deleting. how can I do this 回答1: This is a working solution that is very close to what you want (It still rebuilds the whole ListView when one item is edited but have no

问题 What I have tried: public class EntryAdapter extends ArrayAdapter<Item> { private Context context; private ArrayList<Item> items; private LayoutInflater vi; public EntryAdapter(Context context,ArrayList<Item> items) { super(context,0, items); this.context = context; this.items = items; vi = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } @Override public View getView(int position, final View convertView, ViewGroup parent) { // // // // NON-FUNCTIONING CODE BELOW

问题 What I have tried: public class EntryAdapter extends ArrayAdapter<Item> { private Context context; private ArrayList<Item> items; private LayoutInflater vi; public EntryAdapter(Context context,ArrayList<Item> items) { super(context,0, items); this.context = context; this.items = items; vi = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } @Override public View getView(int position, final View convertView, ViewGroup parent) { // // // // NON-FUNCTIONING CODE BELOW

问题 What I have tried: public class EntryAdapter extends ArrayAdapter<Item> { private Context context; private ArrayList<Item> items; private LayoutInflater vi; public EntryAdapter(Context context,ArrayList<Item> items) { super(context,0, items); this.context = context; this.items = items; vi = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } @Override public View getView(int position, final View convertView, ViewGroup parent) { // // // // NON-FUNCTIONING CODE BELOW

问题 I have a pre-configured ListView (with column headers already set up), that I would like to task a list of object, and write - as rows to that listview - specific attributes of the class I have a list of. I'm trying to follow this existing question, while it perfectly handles an item with only one column, I'm not sure how to apply multiple sub items. I have a class that contains a List<Product> which is being handed off to a UserControl that takes that list and adds each product item to a