public UpdatePage()
        {
            InitializeComponent();

            memberManager = new Data.MemberManager(new Data.RestService());
            database      = Data.MemberDatabase.Create(databasePath);

            activityIndicator.WidthRequest  = 100;
            activityIndicator.HeightRequest = 100;
            activityIndicator.IsRunning     = false;
            activityIndicator.IsVisible     = false;
            this.child1.Children.Add(activityIndicator);

            this.child2.Children.Add(errorLabel);

            UpdateButton.Text              = "Update Data";
            UpdateButton.BackgroundColor   = Color.AntiqueWhite;
            UpdateButton.HorizontalOptions = LayoutOptions.CenterAndExpand;
            UpdateButton.VerticalOptions   = LayoutOptions.CenterAndExpand;
            UpdateButton.HeightRequest     = 70;
            UpdateButton.WidthRequest      = 100;
            UpdateButton.Clicked          += UpdateButton_PressedAsync;
            this.child3.Children.Add(UpdateButton);
        }
Exemple #2
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        public TakePicture(String memberIDGUID)
        {
            InitializeComponent();

            this.memberIDGUID = memberIDGUID;
            memberManager     = new Data.MemberManager(new Data.RestService());

            takePhoto.Clicked += async(sender, args) =>
            {
                if (!CrossMedia.Current.IsCameraAvailable || !CrossMedia.Current.IsTakePhotoSupported)
                {
                    await DisplayAlert("No Camera", ":( No camera avaialble.", "OK");

                    return;
                }

                var file = await CrossMedia.Current.TakePhotoAsync(new Plugin.Media.Abstractions.StoreCameraMediaOptions
                {
                    SaveToAlbum        = false,
                    CompressionQuality = 75,
                    CustomPhotoSize    = 50,
                    PhotoSize          = PhotoSize.MaxWidthHeight,
                    MaxWidthHeight     = 1000,
                    DefaultCamera      = CameraDevice.Front,
                    Name = this.memberIDGUID + ".jpg"
                });

                if (file == null)
                {
                    return;
                }

                image.Source = ImageSource.FromStream(() =>
                {
                    var stream = file.GetStream();
                    return(stream);
                });

                string fileToCopyTo = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), memberIDGUID + ".jpg");

                File.Copy(file.Path, fileToCopyTo, true);

                fileToUpload = fileToCopyTo;

                uploadPhoto.IsVisible = true;
            };

            pickPhoto.Clicked += async(sender, args) =>
            {
                if (!CrossMedia.Current.IsPickPhotoSupported)
                {
                    await DisplayAlert("Photos Not Supported", ":( Permission not granted to photos.", "OK");

                    return;
                }
                var file = await Plugin.Media.CrossMedia.Current.PickPhotoAsync(new Plugin.Media.Abstractions.PickMediaOptions
                {
                    PhotoSize = Plugin.Media.Abstractions.PhotoSize.Medium
                });


                if (file == null)
                {
                    return;
                }

                image.Source = ImageSource.FromStream(() =>
                {
                    var stream = file.GetStream();
                    return(stream);
                });

                string fileToCopyTo = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), memberIDGUID + ".jpg");

                File.Copy(file.Path, fileToCopyTo, true);

                fileToUpload = fileToCopyTo;

                uploadPhoto.IsVisible = true;
            };

            uploadPhoto.Clicked += async(sender, args) =>
            {
                if (fileToUpload != null)
                {
                    if (isBusy)
                    {
                        return;
                    }
                    isBusy             = true;
                    progress.IsVisible = true;

                    //Uploading multiple images at once

                    /*List<FilePathItem> pathItems = new List<FilePathItem>();
                     * while (paths.Count > 0)
                     * {
                     *  pathItems.Add(new FilePathItem("image",paths.Dequeue()));
                     * }*/

                    await CrossFileUploader.Current.UploadFileAsync(Constants.UPLOAD_URL, new FilePathItem("file", fileToUpload));
                }
            };

            okButton.Clicked += (sender, args) =>
            {
                this.Navigation.PopAsync();
            };

            downloadPhoto.Clicked += async(sender, args) =>
            {
                try
                {
                    var fileToDownloadTo = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), memberIDGUID + ".jpg");

                    var worked = await memberManager.DownloadImageFileAsync(memberIDGUID + ".jpg", fileToDownloadTo);

                    if ((image != null) && worked.Equals("worked"))
                    {
                        image.Source = ImageSource.FromFile(fileToDownloadTo);
                    }
                    else
                    {
                        await DisplayAlert("File Download Error", worked, "Ok");
                    }
                }
                catch (Exception ex)
                {
                    await DisplayAlert("File Download Error", ex.Message, "Ok");
                }
            };

            CrossFileUploader.Current.FileUploadCompleted += Current_FileUploadCompleted;
            CrossFileUploader.Current.FileUploadError     += Current_FileUploadError;
            CrossFileUploader.Current.FileUploadProgress  += Current_FileUploadProgress;
        }