/// <summary>
/// Adds a quiz to the search stack given a QuizInfo
/// </summary>
/// <param name="quizzes"></param>
private void AddQuizzes(List <QuizInfo> quizzes)
{
List <QuizInfo> currentlySubscribed = QuizRosterDatabase.GetRoster();
foreach (QuizInfo quiz in quizzes)
{// Only add quiz if the category is what user picked (we are asking the server for more then we need so this could be changed)
if (this.category == "All" || quiz.Category == this.category)
{
Frame quizFrame = new Frame
{
VerticalOptions = LayoutOptions.Start,
HorizontalOptions = LayoutOptions.FillAndExpand,
CornerRadius = 10
};
StackLayout frameStack = new StackLayout
{
FlowDirection = FlowDirection.LeftToRight,
Orientation = StackOrientation.Vertical
};
StackLayout topStack = new StackLayout
{
FlowDirection = FlowDirection.LeftToRight,
Orientation = StackOrientation.Horizontal
};
Label quizName = new Label // 0
{
Text = quiz.QuizName,
FontAttributes = FontAttributes.Bold,
FontSize = Device.GetNamedSize(NamedSize.Large, typeof(Label)),
HorizontalOptions = LayoutOptions.StartAndExpand
};
topStack.Children.Add(quizName);
ImageButton ImageButtonSubscribe = new ImageButton // 1
{
IsVisible = false,
Source = "ic_playlist_add_black_48dp.png",
StyleId = quiz.DBId,
HeightRequest = 30,
BackgroundColor = Color.White,
HorizontalOptions = LayoutOptions.End
};
ImageButtonSubscribe.Clicked += this.ImageButtonSubscribe_Clicked;
topStack.Children.Add(ImageButtonSubscribe);
ImageButton ImageButtonUnsubscribe = new ImageButton // 2
{
IsVisible = false,
Source = "ic_playlist_add_check_black_48dp.png",
StyleId = quiz.DBId,
HeightRequest = 30,
BackgroundColor = Color.White,
HorizontalOptions = LayoutOptions.End
};
ImageButtonUnsubscribe.Clicked += this.ImageButtonUnsubscribe_Clicked;
topStack.Children.Add(ImageButtonUnsubscribe);
ActivityIndicator Syncing = new ActivityIndicator // 3
{
IsVisible = false,
Color = Color.Accent,
HeightRequest = 25,
WidthRequest = 25,
VerticalOptions = LayoutOptions.StartAndExpand,
HorizontalOptions = LayoutOptions.End,
};
topStack.Children.Add(Syncing);
if (quiz.AuthorName != CredentialManager.Username)
{
// If already subscribed
if (!(currentlySubscribed.Where(quizInfo => quizInfo.DBId == quiz.DBId && !quizInfo.IsDeletedLocally).Count() > 0))
{
ImageButtonSubscribe.IsVisible = true;
}
else
{
ImageButtonUnsubscribe.IsVisible = true;
}
}
frameStack.Children.Add(topStack);
Label quizAuthor = new Label
{
Text = "Created by: " + quiz.AuthorName,
};
frameStack.Children.Add(quizAuthor);
Label quizCategory = new Label
{
Text = "Category: " + quiz.Category,
};
frameStack.Children.Add(quizCategory);
quizFrame.Content = frameStack;
this.quizzesSearched.Add(quiz);
Device.BeginInvokeOnMainThread(() =>
this.SearchedStack.Children.Add(quizFrame));
}
}
}
/// <summary>
/// Generate a frame (card-like button) for the UI based on a QuizInfo
/// </summary>
/// <param name="quizInfo">QuizInfo of the quiz to generate a frame for</param>
/// <returns></returns>
private Frame GenerateFrame(QuizInfo quizInfo)
{
Frame frame = new Frame()
{
VerticalOptions = LayoutOptions.Start,
HorizontalOptions = LayoutOptions.FillAndExpand,
CornerRadius = 10
};
StackLayout frameStack = new StackLayout // 1st Child of frameLayout
{
FlowDirection = FlowDirection.LeftToRight,
Orientation = StackOrientation.Vertical,
Padding = 10
};
StackLayout topStack = new StackLayout
{
FlowDirection = FlowDirection.LeftToRight,
Orientation = StackOrientation.Horizontal,
VerticalOptions = LayoutOptions.StartAndExpand,
HorizontalOptions = LayoutOptions.FillAndExpand
};
Label title = new Label // 0
{
Text = quizInfo.QuizName,
FontSize = Device.GetNamedSize(NamedSize.Large, typeof(Label)),
FontAttributes = FontAttributes.Bold,
VerticalOptions = LayoutOptions.StartAndExpand,
HorizontalOptions = LayoutOptions.FillAndExpand //,
//HeightRequest = 45
};
topStack.Children.Add(title);
// Add the sync buttons, We create one for each sync action to keep correct formatting and fix a sizing bug.
ImageButton SyncOffline = new ImageButton // 1
{
IsVisible = false,
Source = "ic_cloud_off_black_48dp.png",
HeightRequest = 25,
WidthRequest = 25,
BackgroundColor = Color.White,
VerticalOptions = LayoutOptions.StartAndExpand,
HorizontalOptions = LayoutOptions.End,
ClassId = quizInfo.DBId,
StyleId = quizInfo.Category
};
SyncOffline.Clicked += this.SyncOffline_Clicked;
topStack.Children.Add(SyncOffline);
ImageButton SyncUpload = new ImageButton // 2
{
IsVisible = false,
Source = "ic_cloud_upload_black_48dp.png",
HeightRequest = 25,
WidthRequest = 25,
BackgroundColor = Color.White,
VerticalOptions = LayoutOptions.StartAndExpand,
HorizontalOptions = LayoutOptions.End,
ClassId = quizInfo.DBId,
StyleId = quizInfo.Category
};
SyncUpload.Clicked += this.SyncUpload_Clicked;
topStack.Children.Add(SyncUpload);
ImageButton SyncDownload = new ImageButton // 3
{
IsVisible = false,
Source = "ic_cloud_download_black_48dp.png",
HeightRequest = 25,
WidthRequest = 25,
BackgroundColor = Color.White,
VerticalOptions = LayoutOptions.StartAndExpand,
HorizontalOptions = LayoutOptions.End,
ClassId = quizInfo.DBId,
StyleId = quizInfo.Category
};
SyncDownload.Clicked += this.SyncDownload_Clicked;
topStack.Children.Add(SyncDownload);
ImageButton SyncNoChange = new ImageButton // 4
{
IsVisible = false,
Source = "ic_cloud_done_black_48dp.png",
HeightRequest = 25,
WidthRequest = 25,
BackgroundColor = Color.White,
VerticalOptions = LayoutOptions.StartAndExpand,
HorizontalOptions = LayoutOptions.End,
ClassId = quizInfo.DBId,
StyleId = quizInfo.Category
};
SyncNoChange.Clicked += this.SyncNoChange_Clicked;
topStack.Children.Add(SyncNoChange);
ActivityIndicator Syncing = new ActivityIndicator // 5
{
IsVisible = false,
Color = Color.Accent,
HeightRequest = 25,
WidthRequest = 25,
VerticalOptions = LayoutOptions.StartAndExpand,
HorizontalOptions = LayoutOptions.End,
};
topStack.Children.Add(Syncing);
ImageButton imageButtonMenu = new ImageButton // 6
{
Source = "ic_more_vert_black_48dp.png",
HeightRequest = 35,
WidthRequest = 35,
BackgroundColor = Color.White,
VerticalOptions = LayoutOptions.StartAndExpand,
HorizontalOptions = LayoutOptions.End,
ClassId = quizInfo.DBId
};
imageButtonMenu.Clicked += this.ImageButtonMenu_Clicked;
topStack.Children.Add(imageButtonMenu);
if (CredentialManager.Username == quizInfo.AuthorName)
{
imageButtonMenu.StyleId = "Delete";
}
else
{
imageButtonMenu.StyleId = "Unsubscribe";
}
frameStack.Children.Add(topStack);
BoxView Seperator = new BoxView // 1
{
Color = Color.LightGray,
CornerRadius = 1,
HeightRequest = 2,
WidthRequest = Application.Current.MainPage.Width - 75,
HorizontalOptions = LayoutOptions.CenterAndExpand,
VerticalOptions = LayoutOptions.CenterAndExpand
};
frameStack.Children.Add(Seperator);
Label Author = new Label // 2
{
Text = "Created by: " + quizInfo.AuthorName,
FontSize = Device.GetNamedSize(NamedSize.Medium, typeof(Label)),
VerticalOptions = LayoutOptions.End,
HorizontalOptions = LayoutOptions.StartAndExpand
};
frameStack.Children.Add(Author);
// The sync button thats active in the current frame
ImageButton activeSync;
if (quizInfo.SyncStatus == (int)SyncStatusEnum.Offline) // SyncOffline
{
SyncOffline.IsVisible = true;
activeSync = SyncOffline;
}
else if (quizInfo.SyncStatus == (int)SyncStatusEnum.Synced) // SyncNoChange
{
SyncNoChange.IsVisible = true;
activeSync = SyncNoChange;
}
else if (quizInfo.SyncStatus == (int)SyncStatusEnum.NeedUpload && quizInfo.AuthorName == CredentialManager.Username) // SyncUpload
{
SyncUpload.IsVisible = true;
activeSync = SyncUpload;
}
else if (quizInfo.SyncStatus == (int)SyncStatusEnum.NeedDownload ||
quizInfo.SyncStatus == (int)SyncStatusEnum.NotDownloadedAndNeedDownload) // SyncDownload
{
SyncDownload.IsVisible = true;
activeSync = SyncDownload;
if (quizInfo.SyncStatus == (int)SyncStatusEnum.NotDownloadedAndNeedDownload) // Sync Download & notLocal yet
{
frame.StyleId = "notLocal";
}
}
else
{
SyncOffline.IsVisible = true;
activeSync = SyncOffline;
}
TapGestureRecognizer recognizer = new TapGestureRecognizer();
recognizer.Tapped += async(object sender, EventArgs e) =>
{
if (frame.StyleId != "notLocal")
{
frame.GestureRecognizers.Remove(recognizer);
frame.BackgroundColor = Color.LightGray;
Seperator.Color = Color.Gray;
imageButtonMenu.BackgroundColor = Color.LightGray;
activeSync.BackgroundColor = Color.LightGray;
// Load the quiz associated with this DBId
Quiz newQuiz = new Quiz(quizInfo.DBId);
//await this.RemoveMenu(frameMenu);
await this.Navigation.PushAsync(new Game(newQuiz));
frame.BackgroundColor = Color.Default;
Seperator.Color = Color.LightGray;
imageButtonMenu.BackgroundColor = Color.White;
activeSync.BackgroundColor = Color.White;
frame.GestureRecognizers.Add(recognizer);
}
else
{
await this.DisplayAlert("Hold on!", "In order to study with this quiz, you must download it first", "OK");
}
};
frame.GestureRecognizers.Add(recognizer);
frame.Content = frameStack;
return(frame);
}