sharee.bike-App/LastenradBayern/ShareeBike/View/SelectBike/SelectBikePage.xaml.cs

184 lines
6.6 KiB
C#
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using System;
using System.Threading;
using System.Threading.Tasks;
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using Serilog;
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using ShareeBike.Model;
using ShareeBike.Model.Bikes.BikeInfoNS.DriveNS.BatteryNS;
using ShareeBike.Model.Device;
using ShareeBike.MultilingualResources;
using ShareeBike.ViewModel.SelectBike;
using Xamarin.CommunityToolkit.Extensions;
using Xamarin.Forms;
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using Xamarin.Forms.Xaml;
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namespace ShareeBike.View.SelectBike
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{
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[XamlCompilation(XamlCompilationOptions.Compile)]
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public partial class SelectBikePage : ContentPage, IViewService
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{
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/// <summary> Reference to view model. </summary>
SelectBikePageViewModel m_oViewModel = null;
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/// <summary>
/// Holds a value indicating whether page already subscribed to shell item changes or not.
/// </summary>
private bool _IsShellItemChangedReceived = false;
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public SelectBikePage() { }
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/// <summary>
/// Invoked when page is shown.
/// Starts update process.
/// </summary>
protected async override void OnAppearing()
{
if (m_oViewModel != null)
{
// No need to create view model, set binding context an items source if already done.
// If done twice tap events are fired multiple times (when hiding page using home button).
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await m_oViewModel.OnAppearingOrRefresh();
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return;
}
try
{
var model = App.ModelRoot;
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m_oViewModel = new SelectBikePageViewModel(
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model.ActiveUser,
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model,
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App.PermissionsService,
App.BluetoothService,
Device.RuntimePlatform,
() => model.GetIsConnected(),
(isConnected) => model.GetConnector(isConnected),
App.LocationServicesContainer.Active,
model.LocksServices.Active,
model.Stations,
model.Polling,
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model.PostAction,
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model.SmartDevice,
this,
(url) => DependencyService.Get<IExternalBrowserService>().OpenUrl(url))
{
IsReportLevelVerbose = model.IsReportLevelVerbose
};
}
catch (Exception exception)
{
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Log.ForContext<SelectBikePage>().Error("Displaying bikes at station page failed. {Exception}", exception);
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await DisplayAlert(
AppResources.ErrorPageNotLoadedTitle,
$"{AppResources.ErrorPageNotLoaded}\r\n{exception.Message}",
AppResources.MessageAnswerOk);
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return;
}
InitializeComponent();
BindingContext = m_oViewModel;
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SelectBikeListView.ItemsSource = m_oViewModel;
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await m_oViewModel.OnAppearingOrRefresh();
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}
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/// <summary>
/// Invoked when page is disappearing to
/// - stop the update process
/// - to subscribe to events.
/// </summary>
protected async override void OnDisappearing()
{
if (!_IsShellItemChangedReceived && Shell.Current != null)
{
// Subscribe to events.
// Do not do this on startup because Shell.Current is null, if FindeBikePage is startup page.
Shell.Current.Navigated += (sender, e) =>
{
if (e.Source != ShellNavigationSource.ShellItemChanged)
{
// Nothing to do.
return;
}
// Reset previous user input after switch of pages to allow user to select a differnt bike if one has been selected before.
m_oViewModel.BikeIdUserInput = String.Empty;
};
}
_IsShellItemChangedReceived = true;
await (m_oViewModel?.OnDisappearing() ?? Task.CompletedTask);
}
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/// <summary>
/// Displays alert message.
/// </summary>
/// <param name="p_strTitle">Title of message.</param>
/// <param name="p_strMessage">Message to display.</param>
/// <param name="p_strCancel">Type of buttons.</param>
public new async Task DisplayAlert(string p_strTitle, string p_strMessage, string p_strCancel)
=> await App.Current.MainPage.DisplayAlert(p_strTitle, p_strMessage, p_strCancel);
/// <summary> Displays alert message.</summary>
/// <param name="title">Title of message.</param>
/// <param name="message">Message to display.</param>
/// <param name="details">Detailed error description.</param>
/// <param name="cancel">Type of buttons.</param>
public async Task DisplayAdvancedAlert(
string title,
string message,
string details,
string cancel)
=> await App.Current.MainPage.DisplayAlert(title, $"{message}\r\nDetails:\r\n{details}", cancel);
/// <summary> Displays detailed alert message.</summary>
/// <param name="title">Title of message.</param>
/// <param name="message">Message to display.</param>
/// <param name="details">Detailed error description.</param>
/// <param name="accept">Text of accept button.</param>
/// <param name="cancel">Text of cancel button.</param>
/// <returns>True if user pressed accept.</returns>
public async Task<bool> DisplayAdvancedAlert(string title, string message, string details, string accept, string cancel)
=> await App.Current.MainPage.DisplayAlert(title, !string.IsNullOrEmpty(details) ? $"{message}\r\nDetails:\r\n{details}" : $"{message}", accept, cancel);
/// <summary>
/// Displays alert message.
/// </summary>
/// <param name="p_strTitle">Title of message.</param>
/// <param name="p_strMessage">Message to display.</param>
/// <param name="p_strAccept">Text of accept button.</param>
/// <param name="p_strCancel">Text of button.</param>
/// <returns>True if user pressed accept.</returns>
public new async Task<bool> DisplayAlert(string p_strTitle, string p_strMessage, string p_strAccept, string p_strCancel)
=> await App.Current.MainPage.DisplayAlert(p_strTitle, p_strMessage, p_strAccept, p_strCancel);
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/// <summary> Shows a page.</summary>
/// <param name="route">Route of the page to show.</param>
public async Task ShowPage(string route) => await Shell.Current.GoToAsync(route);
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/// <summary> Pushes a page onto the modal stack. </summary>
/// <param name="typeOfPage">Page to display.</param>
public async Task PushModalAsync(ViewTypes typeOfPage)
=> await Navigation.PushModalAsync((Page)Activator.CreateInstance(typeOfPage.GetViewType()));
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/// <summary> Pops a page from the modal stack. </summary>
public Task PopModalAsync() => throw new NotSupportedException();
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/// <summary> Pushes a page onto the stack. </summary>
/// <param name="p_oTypeOfPage">Page to display.</param>
public Task PushAsync(ViewTypes p_oTypeOfPage) => throw new NotSupportedException();
#if USCSHARP9
public async Task<IViewService.IUserFeedback> DisplayUserFeedbackPopup() => await Navigation.ShowPopupAsync<FeedbackPopup.Result>(new FeedbackPopup());
#else
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/// <summary> Displays user feedback popup.</summary>
/// <param name="co2Saving"> Co2 saving information.</param>
/// <returns>User feedback.</returns>
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public async Task<IUserFeedback> DisplayUserFeedbackPopup(IBatteryMutable battery = null) => await Navigation.ShowPopupAsync<FeedbackPopup.Result>(new FeedbackPopup(battery));
#endif
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}
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}