private void mSearch_TextChanged(object sender, TextChangedEventArgs e)
{
List <Person> searchPerson = (from person in mItems
where person.FirstName.ToLower().Contains(mSearch.Text.ToLower()) || person.Age.Contains(mSearch.Text)
select person).ToList <Person>();
adapter = new ListViewAdapter(this, searchPerson, Resource.Layout.listview_row);
mListView.Adapter = adapter;
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
Xamarin.Essentials.Platform.Init(this, savedInstanceState);
SetContentView(Resource.Layout.activity_main);
mListView = FindViewById <ListView>(Resource.Id.friendsView);
mSearch = FindViewById <EditText>(Resource.Id.mSearch);
mContainer = FindViewById <LinearLayout>(Resource.Id.Container);
mHeaderFirstName = FindViewById <TextView>(Resource.Id.txtHeaderFirstName);
mHeaderLastName = FindViewById <TextView>(Resource.Id.txtHeaderLastName);
mHeaderAge = FindViewById <TextView>(Resource.Id.txtHeaderAge);
mHeaderGender = FindViewById <TextView>(Resource.Id.txtHeaderGender);
mHeaderFirstName.Click += mHeaderFirstName_Click;
mHeaderLastName.Click += mHeaderLastName_Click;
mHeaderAge.Click += mHeaderAge_Click;
mHeaderGender.Click += mHeaderGender_Click;
mSearch.Alpha = 0;
mSearch.TextChanged += mSearch_TextChanged;
mContainer.BringToFront();
mItems = new List <Person>();
mItems.Add(new Person()
{
FirstName = "Marian", LastName = "Kowal", Age = "20", Gender = "M"
});
mItems.Add(new Person()
{
FirstName = "Janusz", LastName = "Liśc", Age = "29", Gender = "M"
});
mItems.Add(new Person()
{
FirstName = "Grażyna", LastName = "Bąk", Age = "32", Gender = "K"
});
adapter = new ListViewAdapter(this, mItems, Resource.Layout.listview_row);
mListView.Adapter = adapter;
mListView.ItemClick += mListView_ItemClick;
}
private void mHeaderGender_Click(object sender, EventArgs e)
{
List <Person> filteredPersons;
if (!mGenderFilterAsc)
{
filteredPersons = (from person in mItems
orderby person.Gender ascending
select person).ToList <Person>();
}
else
{
filteredPersons = (from person in mItems
orderby person.Gender descending
select person).ToList <Person>();
}
adapter = new ListViewAdapter(this, filteredPersons, Resource.Layout.listview_row);
mListView.Adapter = adapter;
mGenderFilterAsc = !mGenderFilterAsc;
}