public bool OnInterceptTouchEvent (RecyclerView rv, MotionEvent e)
{
// TODO : this part intercep any touch inside recycler
// and delete pending items.
// A better method could be used.
if (e.Action == MotionEventActions.Down) {
var undoAdapter = (IUndoAdapter)rv.GetAdapter ();
View view = GetChildViewUnder (e);
if (view == null) {
undoAdapter.DeleteSelectedItem ();
} else {
int position = recyclerView.GetChildLayoutPosition (view);
if (!undoAdapter.IsUndo (position)) {
undoAdapter.DeleteSelectedItem ();
}
}
}
if (IsEnabled) {
gestureDetector.OnTouchEvent (e);
}
return false;
}
public override void OnScrolled(RecyclerView recyclerView, int dx, int dy)
{
base.OnScrolled (recyclerView, dx, dy);
var visibleItemCount = recyclerView.ChildCount;
var totalItemCount = recyclerView.GetAdapter().ItemCount;
var pastVisiblesItems = LayoutManager.FindFirstVisibleItemPosition();
if ((visibleItemCount + pastVisiblesItems) >= totalItemCount) {
LoadMoreEvent (this, totalItemCount);
}
}
protected virtual void CleanUpReferencesToViewOrContext()
{
recycler?.GetAdapter()?.Dispose();
recycler?.Dispose();
viewSwitcher = null;
header = null;
emptyText = null;
if (loadMoreButton != null)
{
loadMoreButton.Click -= NextButon_Click;
}
loadMoreButton = null;
LoadMoreClick = null;
}
public virtual void AddColumnItems(int column, IList <ICell> cellColumnItems)
{
// It should be same size with exist model list.
if (cellColumnItems.Count != mItemList.Count || cellColumnItems.Contains(null))
{
return;
}
// Firstly, add columns from visible recyclerViews.
// To be able provide removing animation, we need to notify just for given column position.
CellLayoutManager layoutManager = mTableView.GetCellLayoutManager();
for (int i = layoutManager.FindFirstVisibleItemPosition();
i < layoutManager.FindLastVisibleItemPosition() + 1;
i++)
{
// Get the cell row recyclerView that is located on i position
RecyclerView cellRowRecyclerView = (RecyclerView)layoutManager.FindViewByPosition(i);
// Add the item using its adapter.
((AbstractRecyclerViewAdapter <ICell>)cellRowRecyclerView.GetAdapter()).AddItem(column,
cellColumnItems[i]);
}
// Lets change the model list silently
IList <IList <ICell> > cellItems = new AList <IList <ICell> >();
for (int i_1 = 0; i_1 < mItemList.Count; i_1++)
{
IList <ICell> rowList = new AList <ICell>((IList <ICell>)mItemList[i_1]);
if (rowList.Count > column)
{
rowList.Insert(column, cellColumnItems[i_1]);
}
cellItems.Add(rowList);
}
// Change data without notifying. Because we already did for visible recyclerViews.
SetItems(cellItems, false);
}
/**Turn By Turn Navigation Ui**/
private void reconfigureUiForNavigation(int itineraryIndex)
{
//Disable the actv layout, and route/start buttons
FindViewById <LinearLayout>(Resource.Id.actvLayout).Visibility = ViewStates.Gone;
FindViewById <Button>(Resource.Id.startButton).Visibility = ViewStates.Gone;
FindViewById <Button>(Resource.Id.routeButton).Visibility = ViewStates.Gone;
//Binds a variable to the recyclerView
RecyclerView recyclerView = FindViewById <RecyclerView>(Resource.Id.slidingRecycler);
//Parses the itinerary selected
Itinerary itin = OtpAPI.ParseItinerary(otpResponse["plan"]["itineraries"][itineraryIndex]);
//Binds a variable to a configured recycler view
recyclerView = Tools.configureRecyclerViewForNavigation(itin, recyclerView);
//Sets up the turn by turn ui (the upper section)
initializeUpperNavigationUi(itin, recyclerView);
//Sets the first row in the recyclerView to be highlighted
((StepRowAdapter)recyclerView.GetAdapter()).HighlightedRow = 0;
//Hides the recentering button when navigating
Tools.toggleVisibility(FindViewById <FloatingActionButton>(Resource.Id.recenterOnUserActionButton));
//Binds the backToRoutingButton to go back to the routing screen
Button backToRoutingButton = FindViewById <Button>(Resource.Id.backToRoutingButton);
backToRoutingButton.Click += delegate
{
//TODO: implement reverse screen reconfiguration
reconfigureUiForRouting();
};
//Configures the station image thumbnail with the sample image
configureStationImage();
//Starts turn by turn tracking for stepping through the steps
initializeTurnByTurnTracking(itin, recyclerView);
}
public override void OnScrolled(RecyclerView recyclerView, int dx, int dy)
{
try
{
base.OnScrolled(recyclerView, dx, dy);
var visibleItemCount = recyclerView.ChildCount;
var totalItemCount = recyclerView.GetAdapter().ItemCount;
int[] firstVisibleItemPositions;
// Check if we're running on Android 5.0 or higher
if ((int)Build.VERSION.SdkInt < 23)
{
firstVisibleItemPositions = new int[2];
}
else
{
firstVisibleItemPositions = new int[3];
}
var firstVisibleItem =
((StaggeredGridLayoutManager)recyclerView.GetLayoutManager()).FindFirstVisibleItemPositions(
firstVisibleItemPositions)[0];
var pastVisiblesItems = firstVisibleItem;
if (visibleItemCount + pastVisiblesItems + 8 >= totalItemCount)
{
if (IsLoading == false)
{
LoadMoreEvent?.Invoke(this, null);
IsLoading = true;
}
}
}
catch (Exception exception)
{
Crashes.TrackError(exception);
}
}
public override void OnDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state)
{
int left = parent.PaddingLeft;
int right = parent.Width - parent.PaddingRight;
int childCount = parent.GetAdapter().ItemCount;
for (int i = 0; i < childCount; i++)
{
var child = parent.GetChildAt(i);
if (child == null)
{
return;
}
var lp = (RecyclerView.LayoutParams)child.LayoutParameters;
int top = (int)(child.Top + lp.TopMargin + lp.BottomMargin + child.TranslationY);
c.DrawLine(left + ((i + 1 < childCount) ? _sideSpace : 0), top, right, top, _paint);
}
}
protected override void OnStart()
{
base.OnStart();
if (DataManager.LoginImpossible)
{
StartUserActivity();
return;
}
if (_recyclerView.GetAdapter() == null)
{
_machines.Clear();
_adapter = new MachinesAdapter(_machines);
_recyclerView.SetAdapter(_adapter);
_adapter.ItemClicked += StartSelectedMachineActivity;
DataManager.SheduleGetMachinesRequest(DataUpdateCallback);
_lastUpdateTime = DateTime.Now;
}
_timerHolder.Start();
}
public override void OnDrawOver(Canvas cValue, RecyclerView parent, RecyclerView.State state)
{
var left = parent.PaddingLeft;
var right = parent.Width - parent.PaddingRight;
for (var i = 0; i < parent.ChildCount; i++)
{
var child = parent.GetChildAt(i);
var parameters = child.LayoutParameters.JavaCast <RecyclerView.LayoutParams>();
var top = child.Bottom + parameters.BottomMargin;
var bottom = top + _divider.IntrinsicHeight;
_divider.SetBounds(left, top, right, bottom);
if ((parent.GetChildAdapterPosition(child) == parent.GetAdapter().ItemCount - 1) && parent.Bottom < bottom)
{ // this prevent a parent to hide the last item's divider
parent.SetPadding(parent.PaddingLeft, parent.PaddingTop, parent.PaddingRight, bottom - parent.Bottom);
}
_divider.Draw(cValue);
}
}
public override void OnScrolled(RecyclerView recyclerView, int dx, int dy)
{
try
{
base.OnScrolled(recyclerView, dx, dy);
var visibleItemCount = recyclerView.ChildCount;
var totalItemCount = recyclerView.GetAdapter().ItemCount;
var pastVisiblesItems = LayoutManager.FindFirstVisibleItemPosition();
if (visibleItemCount + pastVisiblesItems + 8 >= totalItemCount)
{
if (IsLoading == false)
{
LoadMoreEvent?.Invoke(this, null);
IsLoading = true;
}
}
}
catch (Exception exception)
{
Console.WriteLine(exception);
}
}
public override void OnDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state)
{
base.OnDrawOver(c, parent, state);
int itemCount = parent.GetAdapter().ItemCount;
// center horizontally, calculate width and subtract half from center
float totalLength = mIndicatorItemLength * itemCount;
float paddingBetweenItems = Math.Max(0, itemCount - 1) * mIndicatorItemPadding;
float indicatorTotalWidth = totalLength + paddingBetweenItems;
float indicatorStartX = (parent.Width - indicatorTotalWidth) / 2F;
float indicatorPosY = parent.Height - mIndicatorHeight / 2F;
drawInactiveIndicators(c, indicatorStartX, indicatorPosY, itemCount);
// find active page (which should be highlighted)
LinearLayoutManager layoutManager = (LinearLayoutManager)parent.GetLayoutManager();
int activePosition = layoutManager.FindLastVisibleItemPosition();
if (activePosition == RecyclerView.NoPosition)
{
return;
}
// find offset of active page (if the user is scrolling)
View activeChild = layoutManager.FindViewByPosition(activePosition);
int left = activeChild.Left;
int width = activeChild.Width;
// on swipe the active item will be positioned from [-width, 0]
// interpolate offset for smooth animation
float progress = mInterpolator.GetInterpolation(left * -1 / (float)width);
drawHighlights(c, indicatorStartX, indicatorPosY, activePosition, progress, itemCount);
}
private int getTotalItemCount(RecyclerView parent)
{
return(parent.GetAdapter().ItemCount);
}
public bool CanDismiss(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder)
{
var adapter = recyclerView.GetAdapter();
return(adapter.GetItemViewType(viewHolder.LayoutPosition) == LogTimeEntriesAdapter.ViewTypeContent);
}
public override void OnScrolled(RecyclerView recyclerView, int dx, int dy)
{
View firstVisibleView = recyclerView.GetChildAt(0);
int firstVisiblePosition = recyclerView.GetChildPosition(firstVisibleView);
int visibleRange = recyclerView.ChildCount;
int lastVisiblePosition = firstVisiblePosition + visibleRange;
int itemCount = recyclerView.GetAdapter().ItemCount;
int position;
if(firstVisiblePosition==0)
position=0;
else if(lastVisiblePosition==itemCount-1)
position = itemCount-1;
else
position = firstVisiblePosition;
float proportion=(float)position/(float)itemCount;
this.scroll.setPosition(scroll.height*proportion);
}
public override void OnScrolled (RecyclerView recyclerView, int dx, int dy)
{
pref = PreferenceManager.GetDefaultSharedPreferences(Application.Context);
LinearLayoutManager linearLayoutManager = (LinearLayoutManager)recyclerView.GetLayoutManager ();
int lastVisibleItem = linearLayoutManager.FindLastVisibleItemPosition();
int totalItemCount = recyclerView.GetAdapter().ItemCount;
if (!IsLoading && totalItemCount <= (lastVisibleItem + visibleThreshold)) {
// End has been reached
// Do something
var currPrefPage = pref.GetString ("CurrentPage", string.Empty);
if (!String.IsNullOrEmpty (currPrefPage)) {
if (Int32.Parse (currPrefPage) > 0) {
currentPage++;
} else {
currentPage = 2;
}
} else {
currentPage++;
}
var editor = pref.Edit();
editor.PutString("CurrentPage",currentPage.ToString());
editor.Apply();
IsLoading = true;
Task.Factory.StartNew (async () => {
try{
var newPostList = new List<Post>();
await WebClient.LoadPosts(newPostList,currentPage);
(recyclerView.GetAdapter()as PostViewAdapter)._Posts.AddRange(newPostList);
//recyclerView.GetAdapter().HasStableIds = true;
_messageShown = false;
Application.SynchronizationContext.Post (_ => {recyclerView.GetAdapter().NotifyDataSetChanged();}, null);
//recyclerView.GetAdapter().NotifyItemRangeInserted(recyclerView.GetAdapter().ItemCount,newPostList.Count);
}catch(Exception ex){
//Insights.Report(ex,new Dictionary<string,string>{{"Message",ex.Message}},Insights.Severity.Error);
var text = ex.Message;
if(!_messageShown){
Application.SynchronizationContext.Post (_ => {
Toast.MakeText(Application.Context,"При загрузке данных произошла ошибка",ToastLength.Short).Show();
}, null);
_messageShown = true;
}
}
IsLoading = false;
});
}
}
public override void GetItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state)
{
int left, top, right, bottom;
left = right = top = bottom = _space / 2;
bool isViewEdgeLeft = false;
bool isViewEdgeTop = false;
bool isViewEdgeRight = false;
bool isViewEdgeBottom = false;
bool horizontalOffsetAssigned = false;
int viewPosition = parent.GetChildAdapterPosition(view);
int viewCount = parent.GetAdapter().ItemCount;
if (parent.GetLayoutManager() is ResponsiveGridLayoutManager responsiveGridLayout)
{
int spanCount = responsiveGridLayout.SpanCount;
isViewEdgeLeft = viewPosition % spanCount == 0;
isViewEdgeTop = viewPosition < spanCount;
isViewEdgeRight = viewPosition % spanCount == spanCount - 1;
isViewEdgeBottom = viewPosition / spanCount == viewCount - 1 / spanCount;
if (responsiveGridLayout.TryGetItemWidth(out int itemWidth))
{
int gridLeftPadding = _leftPadding;
int gridRightPadding = _rightPadding;
if (spanCount == 1)
{
// If there is only one column we want our items centered
gridLeftPadding = 0;
gridRightPadding = 0;
horizontalOffsetAssigned = true;
}
int availableWidthSpace = parent.Width - gridLeftPadding - gridRightPadding - spanCount * itemWidth;
int interItemSpacing = spanCount > 1 ? availableWidthSpace / (spanCount - 1) : availableWidthSpace;
left = right = interItemSpacing / 2;
}
}
else if (parent.GetLayoutManager() is LinearLayoutManager)
{
isViewEdgeLeft = viewPosition == 0;
isViewEdgeTop = isViewEdgeBottom = true;
isViewEdgeRight = viewPosition == viewCount - 1;
}
if (isViewEdgeLeft && !horizontalOffsetAssigned)
{
left = _leftPadding;
}
if (isViewEdgeRight && !horizontalOffsetAssigned)
{
right = _rightPadding;
}
if (isViewEdgeTop)
{
top = _topPadding;
}
if (isViewEdgeBottom)
{
bottom = _bottomPadding;
}
outRect.Left = left;
outRect.Top = top;
outRect.Right = right;
outRect.Bottom = bottom;
}
protected override void OnSaveInstanceState(Bundle outState)
{
base.OnSaveInstanceState(outState);
((MyExRecyclerViewAdapter)myRecyclerView.GetAdapter()).OnSaveInstanceState(outState);
}
protected override void OnDestroy()
{
_contactsRecyclerView.GetAdapter().Dispose();
base.OnDestroy();
}
public void UpdateAdapter(string url, List <Tuple <string, int> > selectedIngrForSearchRecipe = null)
{
loadRecipesThread = new Thread(new ThreadStart(() =>
{
try
{
HttpWebRequest request;
HttpWebResponse response;
HtmlDocument htmlDocument = new HtmlDocument();
StreamReader streamFormater;//для перекодировки текста
try
{
if (parentView.FindViewById <ProgressBar>(Resource.Id.progressBar).Visibility == ViewStates.Invisible || parentView.FindViewById <ProgressBar>(Resource.Id.progressBar).Visibility == ViewStates.Gone)
{
Activity.RunOnUiThread(() => parentView.FindViewById <ProgressBar>(Resource.Id.progressBar).Visibility = ViewStates.Visible);
}
}
catch (NullReferenceException)
{ }
for (int i = 0; i < 10; i++)
{
url = url.Replace(("~" + i), ("~" + (i + 1)));
request = (HttpWebRequest)WebRequest.Create(url);
response = (HttpWebResponse)request.GetResponse();
htmlDocument.Load(response.GetResponseStream(), Encoding.GetEncoding("windows-1251"));
for (int j = 0; j < 15; j++)
{
try
{
var recipeHtml = htmlDocument.DocumentNode.Descendants("table").FirstOrDefault(x => x.Attributes.Contains("class") && x.Attributes["class"].Value == "uno_recipie");
//блок с рецептoм
var descHtml = recipeHtml.Descendants("td").FirstOrDefault(x => x.Attributes.Contains("class") && x.Attributes["class"].Value == "recipe-list-right-col");
//категории рецепта
var categoriesHtml = descHtml.Descendants("nobr").ToList();
List <string> mCategories = new List <string>();
foreach (var item in categoriesHtml)
{
streamFormater = new StreamReader(GenerateStreamFromString(item.FirstChild.InnerText.Trim()), Encoding.UTF8);
string categorie = streamFormater.ReadLine();
mCategories.Add(categorie);
}
//тэги рецепта
var tagHtml = recipeHtml.Descendants("div").FirstOrDefault(x => x.Attributes.Contains("class") && x.Attributes["class"].Value == "recipie_tags").Descendants("span").ToList();
List <string> mTags = new List <string>();
foreach (var item in tagHtml)
{
streamFormater = new StreamReader(GenerateStreamFromString(item.FirstChild.InnerText.Trim()), Encoding.UTF8);
string tag = streamFormater.ReadLine();
mTags.Add(tag);
}
//название
string name = recipeHtml.Descendants("a").FirstOrDefault(x => x.Attributes.Contains("href") && x.Attributes.Contains("title")).InnerText.Trim();
name = name.Replace(""", "");
//создается поток с кодировкой utf-8
streamFormater = new StreamReader(GenerateStreamFromString(name), Encoding.UTF8);
name = streamFormater.ReadLine();
//описание
string description = descHtml.ChildNodes[0].InnerText.Trim();
streamFormater = new StreamReader(GenerateStreamFromString(description), Encoding.UTF8);
description = streamFormater.ReadLine();
//ссылка
string recipeLink = recipeHtml.Descendants("a").FirstOrDefault(x => x.Attributes.Contains("href")).Attributes["href"].Value;
//изображение
string imageUrl = null;
imageUrl = GetImageFromUrl(recipeLink);
//время приготовления
string time = GetTimeRecipeFromUrl(recipeLink);
//ингридиенты
List <string> _listIngr = new List <string>();
var html = recipeHtml.Descendants("div").FirstOrDefault(x => x.Attributes.Contains("class") && x.Attributes["class"].Value == "ingr_fast");
var ingrHtml = html.FirstChild.FirstChild.FirstChild;
foreach (var item in ingrHtml.ChildNodes)
{
//Console.WriteLine(item.Name);
foreach (var item2 in item.ChildNodes)
{
foreach (var item3 in item2.ChildNodes)
{
streamFormater = new StreamReader(GenerateStreamFromString(item3.InnerText.Trim()), Encoding.UTF8);
_listIngr.Add(streamFormater.ReadLine());
}
}
}
//поиск на совпадение ингредиентов
if (selectedIngrForSearchRecipe != null)
{
foreach (var ingr in _listIngr)
{
if (selectedIngrForSearchRecipe.Any(c => c.Item1 == ingr))
{
mRecipe.Add(new Recipe
{
Name = name,
Link = recipeLink,
ImageUrl = imageUrl != null ? imageUrl : "https://pp.userapi.com/c604426/v604426563/5a9d/xplUnWS7EFA.jpg",
Description = description,
Category = mCategories,
Tags = mTags,
Time = time != null ? time : "-",
IngrList = _listIngr
});
//Activity.RunOnUiThread(() => recyclerView.GetAdapter().NotifyItemInserted(mRecipe.Count));
break;
}
}
}
else
{
mRecipe.Add(new Recipe
{
Name = name,
Link = recipeLink,
ImageUrl = imageUrl != null ? imageUrl : "https://pp.userapi.com/c604426/v604426563/5a9d/xplUnWS7EFA.jpg",
Description = description,
Category = mCategories,
Tags = mTags,
Time = time != null ? time : "-",
IngrList = _listIngr
});
}
htmlDocument.DocumentNode.Descendants("table").FirstOrDefault(x => x.Attributes.Contains("class") && x.Attributes["class"].Value == "uno_recipie").Remove();
Activity.RunOnUiThread(() => recyclerView.GetAdapter().NotifyItemInserted(mRecipe.Count));
if (parentView.FindViewById <ProgressBar>(Resource.Id.progressBar).Visibility == ViewStates.Visible || parentView.FindViewById <ProgressBar>(Resource.Id.progressBar).Visibility == ViewStates.Gone)
{
Activity.RunOnUiThread(() => parentView.FindViewById <ProgressBar>(Resource.Id.progressBar).Visibility = ViewStates.Invisible);
}
}
catch (System.NullReferenceException)
{
continue;
}
}
}
}
//если не установлено интернет соединение
catch (System.Net.WebException)
{ }
}));
loadRecipesThread.Start();
}
public static bool CanRecyclerViewScroll(RecyclerView view)
{
if (view == null || view.GetAdapter() == null || view.GetLayoutManager() == null)
return false;
RecyclerView.LayoutManager lm = view.GetLayoutManager();
int count = view.GetAdapter().ItemCount;
int lastVisible;
if (lm is LinearLayoutManager)
{
LinearLayoutManager llm = (LinearLayoutManager)lm;
lastVisible = llm.FindLastVisibleItemPosition();
}
else
{
throw new InvalidOperationException("Material Dialogs currently only supports LinearLayoutManager. Please report any new layout managers.");
}
if (lastVisible == -1)
return false;
bool lastItemVisible = lastVisible == count - 1;
return !lastItemVisible ||
(view.ChildCount > 0 && view.GetChildAt(view.ChildCount - 1).Bottom > view.Height - view.PaddingBottom);
}
public void UpdateProductCatalogItem(int item, ProductListItem productListItem)
{
var adapter = recycler.GetAdapter() as ProductCatalogAdapter;
adapter.NotifyItemChanged(item);
}
public bool CanDismiss (RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder)
{
var adapter = recyclerView.GetAdapter ();
return adapter.GetItemViewType (viewHolder.LayoutPosition) == LogTimeEntriesAdapter.ViewTypeContent;
}
public override bool OnMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target)
{
recyclerView.GetAdapter().NotifyItemMoved(viewHolder.AdapterPosition, target.AdapterPosition);
return(true);
}
public override void OnSwiped(AndroidX.RecyclerView.Widget.RecyclerView.ViewHolder viewHolder, int direction)
{
//Store the position in case of restoration.
int position = viewHolder.LayoutPosition;
//Store the potentially deleted item.
ImageFileNameModel itemDeleted = null;
if (direction == ItemTouchHelper.Right || direction == ItemTouchHelper.Left)
{
//Remove the item in the model.
itemDeleted = ImageFileNameModels[position];
ImageFileNameModels.RemoveAt(position);
ItemCountHelper.UpdateExportItemsCount(mainActivity, ImageFileNameModels);
RecyclerView.GetAdapter().NotifyItemRemoved(position);
PermissionHelper.ShouldDelete = true;
}
if (itemDeleted != null)
{
//The item was actually deleted. Ask for restoration.
string accentColor = "#" + Fragment.Context.GetColor(Resource.Color.colorAccent).ToString("X");
string primaryColor = "#" + Fragment.Context.GetColor(Resource.Color.colorPrimary).ToString("X");
var snackBar = Snackbar.Make(Fragment.View, $"Item Removed", Snackbar.LengthLong)
.SetAction("Restore", (x) =>
{
//Restore the item.
ImageFileNameModels.Insert(position, itemDeleted);
ItemCountHelper.UpdateExportItemsCount(mainActivity, ImageFileNameModels);
RecyclerView.GetAdapter().NotifyItemInserted(position);
mainActivity.SupportActionBar.Subtitle = $"Current count - {ImageFileNameModels.Count}";
PermissionHelper.ShouldDelete = false;
})
.SetActionTextColor(Android.Graphics.Color.ParseColor(accentColor));
snackBar.AddCallback(new FileDeletionCallback(itemDeleted.FileName, mainActivity, ImageFileNameModels));
snackBar.View.SetBackgroundColor(Android.Graphics.Color.ParseColor(primaryColor));
//Get the exisiting text.
TextView textView = snackBar.View.FindViewById <TextView>(Resource.Id.snackbar_text);
if (AppCompatDelegate.DefaultNightMode == AppCompatDelegate.ModeNightNo)
{
textView.SetTextColor(Android.Graphics.Color.Black);
}
else
{
textView.SetTextColor(Android.Graphics.Color.White);
}
snackBar.Show();
}
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.MainSearch);
#region 界面下方的教室信息链表
SearchRoom searchRoom = new SearchRoom(this); //创建一个搜索类
RecyclerView RoomRecyclertView = FindViewById <RecyclerView>(Resource.Id.RoomRecyclertView); //绑定链表
RecyclerView.Adapter roomlist_adapter = new RecyclerViewAdapter(searchRoom.Show_Datas, this); //创建适配器
LoadMoreWrapper loadMoreWrapper = new LoadMoreWrapper(roomlist_adapter); //创建含有加载更多的适配器
RoomRecyclertView.SetLayoutManager(new LinearLayoutManager(this)); //
RoomRecyclertView.SetAdapter(loadMoreWrapper); //设置链表的适配器
RoomRecyclertView.AddOnScrollListener(new Loadmore(this, searchRoom, loadMoreWrapper)); //设置滑动到底部时加载更多
Detail DetailView = new Detail(this); //教室详细信息页面
((RecyclerViewAdapter)roomlist_adapter).OnClickEventHandler += (RoomNum) =>
{ //点击教室后展开详细页面 传入教室相关信息
foreach (var room in searchRoom.RoomList)
{
if (room.RoomNum.Equals(RoomNum))
{
DetailView.ShowDetail(room);
break;
}
}
};
#endregion
#region 左菜单
/*左菜单的toolbar呼出按钮*/
DrawerLayout drawerLayout = FindViewById <DrawerLayout>(Resource.Id.drawerLayout);
Button CalLeftMenu_button = FindViewById <Button>(Resource.Id.CalLeftMenu_button);
CalLeftMenu_button.Click += (o, e) =>
{
drawerLayout.OpenDrawer((int)GravityFlags.Start);
};
//关于
ImageView AboutimageView = FindViewById <ImageView>(Resource.Id.AboutimageView);
TextView AboutText = FindViewById <TextView>(Resource.Id.AboutText);
AboutimageView.Click += AboutimageView_Click;
AboutText.Click += AboutimageView_Click;
void AboutimageView_Click(object sender, EventArgs e)
{
Intent intent = new Intent(this, typeof(AboutActivity));
//启动关于界面
intent.SetFlags(ActivityFlags.SingleTop);
StartActivity(intent);
}
//吐槽
ImageView TocaoimageView = FindViewById <ImageView>(Resource.Id.TocaoimageView);
TextView TocaoText = FindViewById <TextView>(Resource.Id.TocaoText);
TocaoimageView.Click += TocaoimageView_Click;
TocaoText.Click += TocaoimageView_Click;
void TocaoimageView_Click(object sender, EventArgs e)
{
Intent intent = new Intent(this, typeof(TuCaoFakeActivity));
//启动假吐槽界面
intent.SetFlags(ActivityFlags.SingleTop);
StartActivity(intent);
}
TocaoimageView.LongClick += TocaoimageView_LongClick;
TocaoText.LongClick += TocaoimageView_LongClick;
void TocaoimageView_LongClick(object sender, View.LongClickEventArgs e)
{
Intent intent = new Intent(this, typeof(TuCaoActivity));
//启动吐槽界面
intent.SetFlags(ActivityFlags.SingleTop);
StartActivity(intent);
}
/*左菜单的版本号*/
TextView VersionCode = FindViewById <TextView>(Resource.Id.VersionCodeText);
VersionCode.Text = "版本 " + APKVersionCodeUtils.GetVerName(this);
#endregion
#region 搜索条件
conditions = new Condition(this, searchRoom, loadMoreWrapper);
#endregion
#region 搜索栏
EditText SearchBox = FindViewById <EditText>(Resource.Id.edit_search);
Button SearchButton = FindViewById <Button>(Resource.Id.SearchButton);
/*搜索提示*/
string Tips = GetString(Resource.String.Tip);
JObject jObject = (JObject)JsonConvert.DeserializeObject(Tips);
JArray jArray = (JArray)jObject["Tips"];
Random rd = new Random();
SearchBox.Hint = jArray[rd.Next(0, jArray.Count)].ToString();
/*开始搜索教室*/
/*第一次启动搜索一次防止说空*/
loadMoreWrapper.LoadState = LoadMoreWrapper.LOADING;
new LoadTask(this, searchRoom, loadMoreWrapper, conditions).Execute("101");
SearchBox.EditorAction += (sender, args) =>
{
if (args.ActionId == ImeAction.Search)
{
if (RoomRecyclertView.GetAdapter().ItemCount > 3)
{
RoomRecyclertView.ScrollToPosition(0);
}
searchRoom.Show_Datas.Clear();//清空显示数据
loadMoreWrapper.LoadState = LoadMoreWrapper.LOADING;
new LoadTask(this, searchRoom, loadMoreWrapper, conditions).Execute(SearchBox.Text);
}
};
SearchButton.Click += (sender, args) =>
{
if (RoomRecyclertView.GetAdapter().ItemCount > 3)
{
RoomRecyclertView.ScrollToPosition(0);
}
searchRoom.Show_Datas.Clear();//清空显示数据
loadMoreWrapper.LoadState = LoadMoreWrapper.LOADING;
new LoadTask(this, searchRoom, loadMoreWrapper, conditions).Execute(SearchBox.Text);
};
/*左右按钮换颜色*/
AppBarLayout layout = FindViewById <AppBarLayout>(Resource.Id.appBarLayout1);
layout.OffsetChanged += (object sender, AppBarLayout.OffsetChangedEventArgs e) =>
{
int gray = 255;
if (-e.VerticalOffset + 162 < 255)
{
gray = -e.VerticalOffset + 162;
}
Color filtercolor = Color.Rgb(255, 242, gray);
CalLeftMenu_button.Background.SetColorFilter(filtercolor, PorterDuff.Mode.Multiply);
SearchButton.Background.SetColorFilter(filtercolor, PorterDuff.Mode.Multiply);
};
#endregion
}
public bool OnInterceptTouchEvent(RecyclerView recyclerView, MotionEvent @event)
{
try
{
switch (@event.Action)
{
case MotionEventActions.Down:
lastX = (int)@event.GetX();
break;
case MotionEventActions.Move:
bool isScrollingRight = @event.GetX() < lastX;
if (isScrollingRight && ((LinearLayoutManager)RecyclerView.GetLayoutManager()).FindLastCompletelyVisibleItemPosition() == RecyclerView.GetAdapter().ItemCount - 1 ||
!isScrollingRight && ((LinearLayoutManager)RecyclerView.GetLayoutManager()).FindFirstCompletelyVisibleItemPosition() == 0)
{
ViewPager.UserInputEnabled = true;
}
else
{
ViewPager.UserInputEnabled = false;
}
break;
case MotionEventActions.Up:
lastX = 0;
ViewPager.UserInputEnabled = true;
break;
}
return(false);
}
catch (Exception e)
{
Console.WriteLine(e);
return(false);
}
}
public override void OnSaveInstanceState(Bundle outState)
{
base.OnSaveInstanceState(outState);
((ExpRecyclerViewAdapter)recyclerView.GetAdapter()).OnSaveInstanceState(outState);
}
public override void OnScrolled(RecyclerView recyclerView, int dx, int dy)
{
try
{
base.OnScrolled(recyclerView, dx, dy);
var visibleItemCount = recyclerView.ChildCount;
var totalItemCount = recyclerView.GetAdapter().ItemCount;
int pastVisibleItems;
switch (LayoutManager)
{
case LinearLayoutManager managerLinear:
pastVisibleItems = managerLinear.FindFirstVisibleItemPosition();
break;
default:
switch (LayoutManager)
{
case GridLayoutManager managerGrid:
pastVisibleItems = managerGrid.FindFirstVisibleItemPosition();
break;
case StaggeredGridLayoutManager managerStaggeredGrid:
{
int[] firstVisibleItemPositions = new int[SpanCount];
pastVisibleItems = managerStaggeredGrid.FindFirstVisibleItemPositions(firstVisibleItemPositions)[0];
break;
}
default:
pastVisibleItems = LayoutManager?.FindFirstVisibleItemPosition() ?? 0;
break;
}
break;
}
if (visibleItemCount + pastVisibleItems + 4 < totalItemCount)
{
return;
}
switch (IsLoading)
{
//&& !recyclerView.CanScrollVertically(1)
case true:
return;
default:
//IsLoading = true;
LoadMoreEvent?.Invoke(this, null);
//if (visibleItemCount + pastVisibleItems + 8 >= totalItemCount)
//{
// //Load More from API Request
// if (IsLoading == false)
// {
// LoadMoreEvent?.Invoke(this, null);
// IsLoading = true;
// }
//}
break;
}
}
catch (Exception exception)
{
Methods.DisplayReportResultTrack(exception);
}
}
public override void GetItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state)
{
RecyclerView.LayoutManager layoutManager = parent.GetLayoutManager();
if (!(layoutManager is GridLayoutManager))
{
outRect.Set(0, 0, 0, 0);
return;
}
RecyclerView.Adapter adapter = parent.GetAdapter();
if (adapter == null)
{
outRect.Set(0, 0, 0, 0);
return;
}
int position = parent.GetChildLayoutPosition(view);
if (position == -1)
{
outRect.Set(0, 0, 0, 0);
return;
}
GridLayoutManager glm = (GridLayoutManager)layoutManager;
int size = adapter.ItemCount;
int span = glm.SpanCount;
int spanIndex = position % span;
int spanGroup = position / span;
if (spanIndex == 0)
{
outRect.Left = margin;
}
else
{
outRect.Left = (margin + 1) / 2;
}
if (spanIndex == span - 1)
{
outRect.Right = margin;
}
else
{
outRect.Right = margin / 2;
}
if (spanGroup == 0)
{
outRect.Top = margin;
}
else
{
outRect.Top = (margin + 1) / 2;
}
if (spanGroup == (size - 1) / span)
{
outRect.Bottom = margin;
}
else
{
outRect.Bottom = margin / 2;
}
}
public override void OnScrolled (RecyclerView recyclerView, int dx, int dy)
{
base.OnScrolled (recyclerView, dx, dy);
var visibleItemCount = recyclerView.ChildCount;
var totalItemCount = recyclerView.GetAdapter().ItemCount;
var lastVisibleItem = ((LinearLayoutManager)recyclerView.GetLayoutManager()).FindLastCompletelyVisibleItemPosition();
if ((lastVisibleItem+1) == totalItemCount) {
LoadMoreEvent (this, null);
}
}
private void UpdateScreen(object sender, EventArgs e)
{
_items.Clear();
_items.AddRange(Vm.GetItems(_myDebts));
_listView.GetAdapter().NotifyDataSetChanged();
}
public override void OnScrolled(RecyclerView recyclerView, int dx, int dy)
{
pref = PreferenceManager.GetDefaultSharedPreferences(Application.Context);
LinearLayoutManager linearLayoutManager = (LinearLayoutManager)recyclerView.GetLayoutManager();
int lastVisibleItem = linearLayoutManager.FindLastVisibleItemPosition();
int totalItemCount = recyclerView.GetAdapter().ItemCount;
if (!IsLoading && totalItemCount <= (lastVisibleItem + visibleThreshold))
{
// End has been reached
// Do something
var currPrefPage = pref.GetString("CurrentPage", string.Empty);
if (!String.IsNullOrEmpty(currPrefPage))
{
if (Int32.Parse(currPrefPage) > 0)
{
currentPage++;
}
else
{
currentPage = 2;
}
}
else
{
currentPage++;
}
var editor = pref.Edit();
editor.PutString("CurrentPage", currentPage.ToString());
editor.Apply();
IsLoading = true;
Task.Factory.StartNew(async() => {
try{
var newPostList = new List <Post>();
await WebClient.LoadPosts(newPostList, currentPage);
(recyclerView.GetAdapter() as PostViewAdapter)._Posts.AddRange(newPostList);
//recyclerView.GetAdapter().HasStableIds = true;
_messageShown = false;
Application.SynchronizationContext.Post(_ => { recyclerView.GetAdapter().NotifyDataSetChanged(); }, null);
//recyclerView.GetAdapter().NotifyItemRangeInserted(recyclerView.GetAdapter().ItemCount,newPostList.Count);
}catch (Exception ex) {
//Insights.Report(ex,new Dictionary<string,string>{{"Message",ex.Message}},Insights.Severity.Error);
var text = ex.Message;
if (!_messageShown)
{
Application.SynchronizationContext.Post(_ => {
Toast.MakeText(Application.Context, "При загрузке данных произошла ошибка", ToastLength.Short).Show();
}, null);
_messageShown = true;
}
}
IsLoading = false;
});
}
}
private void progressThroughHitWaypoints(List <LatLng> waypoints, RecyclerView recyclerView)
{
//Gets the current position
LatLng currentPos = new LatLng(map.MyLocation.Latitude, map.MyLocation.Longitude);
//Steps forward through all waypoints that are within 50 meters of the current location
while (currentPos.DistanceTo(waypoints[currentStep]) < 50 && currentStep < recyclerView.GetAdapter().ItemCount)
{
stepRouteForward(recyclerView);
}
}
public bool CanDismiss(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder)
{
var adapter = recyclerView.GetAdapter();
return(adapter.GetItemViewType(viewHolder.LayoutPosition) == RecyclerCollectionDataAdapter <IHolder> .ViewTypeContent);
}
public override void GetItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state)
{
int right = _space / 2;
int left = _space / 2;
bool isViewEdgeLeft = false;
bool isViewEdgeRight = false;
int viewPosition = parent.GetChildAdapterPosition(view);
int viewCount = parent.GetAdapter().ItemCount;
if (parent.GetLayoutManager() is ResponsiveGridLayoutManager responsiveGridLayout)
{
int top = _space / 2;
int bottom = _space / 2;
bool isAutoComputedItemWidth = responsiveGridLayout.IsAutoComputedItemWidth();
int spanCount = responsiveGridLayout.SpanCount;
isViewEdgeLeft = viewPosition % spanCount == 0;
bool isViewEdgeTop = viewPosition < spanCount;
isViewEdgeRight = viewPosition % spanCount == spanCount - 1;
bool isViewEdgeBottom = viewPosition / spanCount == viewCount - 1 / spanCount;
if (isViewEdgeTop)
{
top = isAutoComputedItemWidth ? 0 : _topPadding;
}
if (isViewEdgeBottom)
{
bottom = isAutoComputedItemWidth ? 0 : _bottomPadding;
}
bool isHorizontalEdge = isViewEdgeLeft || isViewEdgeRight;
if (!responsiveGridLayout.TryGetItemWidth(out int itemWidth))
{
base.GetItemOffsets(outRect, view, parent, state);
return;
}
int gridLeftPadding = _leftPadding;
int gridRightPadding = _rightPadding;
if (spanCount == 1)
{
// If there is only one column we want our items centered
gridLeftPadding = 0;
gridRightPadding = 0;
}
//InternalLogger.Info(
// $"interSpacing computation:{Environment.NewLine} parent.MeasuredWidth: {parent.MeasuredWidth}{Environment.NewLine} parent.Width: {parent.Width}{Environment.NewLine} spanCount: {spanCount}{Environment.NewLine} itemWidth:{itemWidth}{Environment.NewLine} gridLeftPadding: {gridLeftPadding}{Environment.NewLine} gridRightPadding: {gridRightPadding}");
int availableWidthSpace =
parent.MeasuredWidth - gridLeftPadding - gridRightPadding - spanCount * itemWidth;
//InternalLogger.Info($"availableWidthSpace: {availableWidthSpace}");
if (spanCount == 1)
{
if (isAutoComputedItemWidth)
{
left = 0;
right = 0;
}
else
{
left = right = availableWidthSpace / 2;
}
}
else
{
int interItemSpace = availableWidthSpace / (spanCount - 1);
int halfInterItemSpace = interItemSpace / 2;
left = interItemSpace / 2;
right = interItemSpace / 2;
if (isHorizontalEdge)
{
int remaining = availableWidthSpace - halfInterItemSpace * 2 * (spanCount - 1);
// InternalLogger.Info($"halfInterItemSpace: {halfInterItemSpace}, remaining: {remaining}");
if (isViewEdgeLeft)
{
left = _leftPadding + remaining;
}
if (isViewEdgeRight)
{
right = _rightPadding;
}
}
}
if (isAutoComputedItemWidth)
{
base.GetItemOffsets(outRect, view, parent, state);
outRect.Set(outRect.Left, top, outRect.Right, bottom);
// InternalLogger.Info(
// $"view n°{viewPosition + 1} => left: {outRect.Left}, top: {outRect.Top}, right: {outRect.Right}, bottom: {outRect.Bottom}");
return;
}
outRect.Set(left, top, right, bottom);
// InternalLogger.Info(
// $"view n°{viewPosition + 1} => left: {outRect.Left}, top: {outRect.Top}, right: {outRect.Right}, bottom: {outRect.Bottom}");
return;
}
if (!(parent.GetLayoutManager() is LinearLayoutManager))
{
base.GetItemOffsets(outRect, view, parent, state);
return;
}
isViewEdgeLeft = viewPosition == 0;
isViewEdgeRight = viewPosition == viewCount - 1;
if (isViewEdgeLeft)
{
left = 0;
}
if (isViewEdgeRight)
{
right = 0;
}
outRect.Set(left, 0, right, 0);
//InternalLogger.Info(
// $"view n°{viewPosition + 1} => left: {left}, right: {right}");
}
public override void OnScrolled (RecyclerView recyclerView, int dx, int dy)
{
base.OnScrolled (recyclerView, dx, dy);
var visibleItemCount = recyclerView.ChildCount;
// Console.Error.WriteLine ("isRefeshing"+MySoal_Tab_1.isRefeshing);
//
if (MyHealth_Tab_2.isRefreshing) {
Console.Error.WriteLine ("masuk");
MyHealth_Tab_2.worker.CancelAsync ();
if (MyHealth_Tab_2.worker.CancellationPending) {
if (MyHealth_Tab_2.worker.IsBusy == true)
{
}
}
}
var totalItemCount = recyclerView.GetAdapter().ItemCount;
var lastVisibleItem = ((LinearLayoutManager)recyclerView.GetLayoutManager()).FindLastCompletelyVisibleItemPosition();
if ((lastVisibleItem+1) == totalItemCount) {
Console.Error.WriteLine ("scrolll222");
LoadMoreEvent (this, null);
}
}
public bool CanDismiss (RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder)
{
var adapter = recyclerView.GetAdapter ();
return adapter.GetItemViewType (viewHolder.LayoutPosition) == RecyclerCollectionDataAdapter<IHolder>.ViewTypeContent;
}
public override void OnScrolled(RecyclerView recyclerView, int dx, int dy)
{
try
{
base.OnScrolled(recyclerView, dx, dy);
var visibleItemCount = recyclerView.ChildCount;
var totalItemCount = recyclerView.GetAdapter().ItemCount;
if (LayoutManager == null)
{
LayoutManager = (LinearLayoutManager)recyclerView.GetLayoutManager();
}
dynamic pastVisibleItems;
switch (LayoutManager)
{
case GridLayoutManager managerGrid:
pastVisibleItems = managerGrid.FindFirstVisibleItemPosition();
break;
case LinearLayoutManager managerLinear:
pastVisibleItems = managerLinear.FindFirstVisibleItemPosition();
break;
case StaggeredGridLayoutManager managerStaggeredGrid:
{
int[] firstVisibleItemPositions = new int[SpanCount];
pastVisibleItems = managerStaggeredGrid.FindFirstVisibleItemPositions(firstVisibleItemPositions)[0];
break;
}
default:
pastVisibleItems = LayoutManager.FindFirstVisibleItemPosition();
break;
}
if (visibleItemCount + pastVisibleItems + 4 < totalItemCount)
{
return;
}
if (IsLoading /* && !recyclerView.CanScrollVertically(1)*/)
{
return;
}
LoadMoreEvent?.Invoke(this, null);
//if (visibleItemCount + pastVisibleItems + 8 >= totalItemCount)
//{
// //Load More from API Request
// if (IsLoading == false)
// {
// LoadMoreEvent?.Invoke(this, null);
// IsLoading = true;
// }
//}
}
catch (Exception exception)
{
Console.WriteLine(exception);
}
}
public override void GetItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state)
{
var position = parent.GetChildAdapterPosition(view);
var spanCount = 0;
var orientation = 0;
var spanIndex = 0;
int headerCount = 0, footerCount = 0;
var adapterObj = parent.GetAdapter();
var adapterType = adapterObj.GetType();
if (adapterType.IsAssignableFrom(typeof(RecyclerArrayAdapter <>)))
{
headerCount = (int)adapterType.GetMethod("GetHeaderCount").Invoke(adapterObj, null);
footerCount = (int)adapterType.GetMethod("GetFooterCount").Invoke(adapterObj, null);
}
var layoutManager = parent.GetLayoutManager();
switch (layoutManager)
{
case StaggeredGridLayoutManager manager:
orientation = manager.Orientation;
spanCount = manager.SpanCount;
spanIndex = ((StaggeredGridLayoutManager.LayoutParams)view.LayoutParameters).SpanIndex;
break;
case GridLayoutManager gridLayoutManager:
orientation = gridLayoutManager.Orientation;
spanCount = gridLayoutManager.SpanCount;
spanIndex = ((GridLayoutManager.LayoutParams)view.LayoutParameters).SpanIndex;
break;
case LinearLayoutManager linearLayoutManager:
orientation = linearLayoutManager.Orientation;
spanCount = 1;
spanIndex = 0;
break;
}
//普通Item的尺寸
if ((position >= headerCount && position < parent.GetAdapter().ItemCount - footerCount))
{
GravityFlags gravity;
if (spanIndex == 0 && spanCount > 1)
{
gravity = GravityFlags.Left;
}
else if (spanIndex == spanCount - 1 && spanCount > 1)
{
gravity = GravityFlags.Right;
}
else if (spanCount == 1)
{
gravity = GravityFlags.FillHorizontal;
}
else
{
gravity = GravityFlags.Center;
}
if (orientation == OrientationHelper.Vertical)
{
switch (gravity)
{
case GravityFlags.Left:
if (_paddingEdgeSide)
{
outRect.Left = _halfSpace * 2;
}
outRect.Right = _halfSpace;
break;
case GravityFlags.Right:
outRect.Left = _halfSpace;
if (_paddingEdgeSide)
{
outRect.Right = _halfSpace * 2;
}
break;
case GravityFlags.FillHorizontal:
if (_paddingEdgeSide)
{
outRect.Left = _halfSpace * 2;
outRect.Right = _halfSpace * 2;
}
break;
case GravityFlags.Center:
outRect.Left = _halfSpace;
outRect.Right = _halfSpace;
break;
}
if (position - headerCount < spanCount && _paddingStart)
{
outRect.Top = _halfSpace * 2;
}
outRect.Bottom = _halfSpace * 2;
}
else
{
switch (gravity)
{
case GravityFlags.Left:
if (_paddingEdgeSide)
{
outRect.Bottom = _halfSpace * 2;
}
outRect.Top = _halfSpace;
break;
case GravityFlags.Right:
outRect.Bottom = _halfSpace;
if (_paddingEdgeSide)
{
outRect.Top = _halfSpace * 2;
}
break;
case GravityFlags.FillHorizontal:
if (_paddingEdgeSide)
{
outRect.Left = _halfSpace * 2;
outRect.Right = _halfSpace * 2;
}
break;
case GravityFlags.Center:
outRect.Bottom = _halfSpace;
outRect.Top = _halfSpace;
break;
}
if (position - headerCount < spanCount && _paddingStart)
{
outRect.Left = _halfSpace * 2;
}
outRect.Right = _halfSpace * 2;
}
}
else
{
//只有HeaderFooter进到这里
if (!_paddingHeaderFooter)
{
return;
}
//并且需要padding Header&Footer
if (orientation == OrientationHelper.Vertical)
{
if (_paddingEdgeSide)
{
outRect.Left = _halfSpace * 2;
outRect.Right = _halfSpace * 2;
}
outRect.Top = _halfSpace * 2;
}
else
{
if (_paddingEdgeSide)
{
outRect.Top = _halfSpace * 2;
outRect.Bottom = _halfSpace * 2;
}
outRect.Left = _halfSpace * 2;
}
}
}