Mobile

We are planning to extend (upgrade) our current Xamarin.iOS / Xamarin.Android app to support Carplay and Android Auto.

The existing app is mobile parking and navigation app which is developed with Xamarin.iOS and Android.

Can anyone with the experience to suggest the basic strategy and approach regarding the upgrade (extend) the app to support Carplay and Android Auto? The team hopes to continue Xamarin platform (either Xamarin.iOS/Android or Xamarin.Forms) as we all love Xamarin.

Any ideas are very welcome and appreciated.

I want to create a taxi app like Uber with latest taxi booking features

async private void Btnupload_Clicked(object sender, EventArgs e)
        {
            GenericMethods.IS_IMAGE_SELECTON = true;
                if (!CrossMedia.Current.IsPickPhotoSupported)
                {
                    await DisplayAlert("Photos Not Supported", ":( Permission not granted to photos.", "OK");
                    return;
                }
                var file = await CrossMedia.Current.PickPhotoAsync(new Plugin.Media.Abstractions.PickMediaOptions
                {
                    PhotoSize = Plugin.Media.Abstractions.PhotoSize.Medium
                });

                if (file == null)
                    return;

                filePath = file.Path;
                paths.Enqueue(filePath);

                //Linux path 
                readytosave = GenericMethods.StreamToByteArray(file.GetStream());

                Uri uri = new Uri(file.Path);
                filename = string.Empty;
                if (uri.IsFile)
                {
                    filename = System.IO.Path.GetFileName(uri.LocalPath);
                }
                var extension = filename.Split('.')[1].ToLower();

                file_extension = extension;

                 imageEditor.Source = ImageSource.FromStream(() =>
                {
                    var stream = file.GetStream();
                    return stream;
                });
            imagepopup.IsOpen = true;
        }

• Plug USB Cable into Desktop Computer (This is USB Type A)
• Plug USB Cable into Android Phone (This is USB 2.0 Micro B)

public async Task<string> GetDBPathAndCreateIfNotExists()
		{
			string databaseName = "DBQDive.db3";
			var docFolder = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);			
			var dbFile = Path.Combine(docFolder, databaseName); // FILE NAME TO USE WHEN COPIED

			if (!File.Exists(dbFile))
			{
				FileStream writeStream = new FileStream(dbFile, FileMode.OpenOrCreate, FileAccess.Write);
				await MainActivity.Instance.Assets.Open(databaseName).CopyToAsync(writeStream);
			}
			return dbFile;
		}

if (!File.Exists(dbFile))

namespace RestDemo.ViewModel
{
    
    public class ViewModel : INotifyPropertyChanged
    {
        public ViewModel ()
        {
           GetRequest();
        }

        List<XmlPizzaDetails> _objPizzaList;

        public List<XmlPizzaDetails> ObjPizzaList
        {
            get { return _objPizzaList; }

            set
            {
                if (_objPizzaList != value)
                {
                    _objPizzaList = value;
                    OnPropertyChanged("ObjPizzaList");
                }
            }
        }


        public async void GetRequest()
        {
            if (NetworkCheck.IsInternet())
            {

                Uri geturi = new Uri("http://api.androidhive.info/pizza/?format=xml"); //replace your xml url
                HttpClient client = new HttpClient();
                HttpResponseMessage responseGet = await client.GetAsync(geturi);
                string response = await responseGet.Content.ReadAsStringAsync();

                //Xml Parsing
                ObjPizzaList = new List<XmlPizzaDetails>();
                XDocument doc = XDocument.Parse(response);
                foreach (var item in doc.Descendants("item"))
                {
                    XmlPizzaDetails ObjPizzaItem = new XmlPizzaDetails();
                    ObjPizzaItem.ID = item.Element("id").Value.ToString();
                    ObjPizzaItem.Name = item.Element("name").Value.ToString();
                    ObjPizzaItem.Cost = item.Element("cost").Value.ToString();
                    ObjPizzaItem.Description = item.Element("description").Value.ToString();
                    ObjPizzaList.Add(ObjPizzaItem);
                }
                Progress = false;
            }
        }

    }
} 

ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:xlocal="clr-namespace:RestDemo.ViewModel"
             xmlns:local="clr-namespace:RestDemo"
             xmlns:Views="clr-namespace:RestDemo.Views"
             x:Class="RestDemo.XmlParsingPageBehavior">
    <ContentPage.BindingContext>
        <xlocal:ViewModel />
    </ContentPage.BindingContext>

<Frame Margin="5, 5, 5, 5" Grid.Row="2" Grid.Column="1" BackgroundColor = "Cyan">
    <ListView x:Name="PizzaListView" ItemsSource="{Binding ObjPizzaList}"  Margin="5, 0, 5, 0" Grid.Row="2" Grid.Column="1" HorizontalOptions="FillAndExpand" HasUnevenRows="True">
        <ListView.ItemTemplate>
            <DataTemplate>
                <ViewCell>
                    <Grid HorizontalOptions="FillAndExpand" Margin="0,0,0,0" Padding="20">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="Auto"/>
                            <RowDefinition Height="Auto"/>
                            <RowDefinition Height="Auto"/>
                            <RowDefinition Height="Auto"/>
                        </Grid.RowDefinitions>
                        <Label Text="{Binding Name}" HorizontalOptions="StartAndExpand" Grid.Row="0" TextColor="Blue"  FontAttributes="Bold"/>
                        <Label Text="{Binding Cost}" HorizontalOptions="StartAndExpand" Grid.Row="1" TextColor="Orange"  FontAttributes="Bold"/>
                        <Label Text="{Binding Description}" HorizontalOptions="StartAndExpand" Grid.Row="2" TextColor="Gray"  FontAttributes="Bold"/>
                        <BoxView HeightRequest="2" Margin="0,10,10,0" BackgroundColor="Gray" Grid.Row="3" HorizontalOptions="Fill" />
                    </Grid>
                </ViewCell>
            </DataTemplate>
        </ListView.ItemTemplate>
    </ListView>
</Frame>