Mobile

I. How to migrate an existing project to AndroidX

In Android Studio 3.2 and higher, you can quickly migrate an existing project to use AndroidX by selecting Refactor -> Migrate to AndroidX from the menu bar.
complile SDK version and target SDK version must be 28 

II. AndroidX in a new project

If you want to use AndroidX in a new project, you need to set the compile SDK to Android 9.0 (API level 28) or higher and The following Android Gradle plugin flags to true in your gradle.properties file.


set android.useAndroidX=true , the Android plugin uses the appropriate AndroidX library instead of a Support Library. android.useAndroidX  is false by default if it is not specified.

set android.enableJetifier=true , the Android plugin automatically migrates existing third-party libraries to use AndroidX by rewriting their binaries. android.useAndroidX is false by default if it is not specified.

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)