How can I get the width and height of an Image picked from gallery after cropping in it Image view

Question

Am trying to get the exact height and width of a Picture set in an Image, am using cropping library to come out with the Picture/Image place in the Image view.

So how can I get its exact selected width and height?

Below is how my code

1. Choosing an Image from gallery, then crop it.

private void SelectImageFromGallery(object sender, EventArgs e)
                {
                    new ImageCropper
                    {
                        CropShape = ImageCropper.CropShapeType.Rectangle,
                        Success = imageFile =>
                        {
                            Device.BeginInvokeOnMainThread(() =>
                        {
                            profile_img.Source = ImageSource.FromFile(imageFile);
                            var folderPath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);

                            var pathFile = profile_img.Source
                                .ToString().Replace("/data/user/0", "/data/data");
                            File.Copy(imageFile, Path.Combine(folderPath, Path.GetFileName(pathFile)));

                        });
                    }
                }.Show(this);

            }

2. Preparing to upload the image ( but I need it's width and height )

    // Get the folder path of the cropped Image var folderPath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData); // Convert it into bytes. var readAllBytes = File.ReadAllBytes(Path.Combine(folderPath, getPathName)); // ByteArrayContent. var baContent = new ByteArrayContent(readAllBytes); 

According to the code above, is there any way I can get the Width and Height of an Image.

Answer 1

In the Android environment, one way to do it is with the BitmapFactory class...

var options = new Android.Graphics.BitmapFactory.Options { InJustDecodeBounds = true };
Android.Graphics.BitmapFactory.DecodeFile(FULL_FILE_PATH_HERE, options);
Android.Util.Log.Info("MyApp", $"Width ={options.OutWidth}");
Android.Util.Log.Info("MyApp", $"Height={options.OutHeight}");

Answer 2

You can try to use the code here to get the width and and height of the photo:

In your SelectImageFromGallery :

private async void SelectImageFromGallery(object sender, EventArgs e)
        {
            new ImageCropper
            {
                CropShape = ImageCropper.CropShapeType.Rectangle,
                Success = imageFile =>
                {
                    Device.BeginInvokeOnMainThread(() =>
                    {

                        ...

                        Size s = GetImageSize(imageFile);
                        Console.WriteLine(s);
                    });
                }
            }.Show(this);

        }

Method to GetImageSize :

 public static Size GetImageSize(string fileName)
        {

            if (Device.RuntimePlatform == Device.iOS)
            {
                UIImage image = UIImage.FromFile(fileName);
                return new Size((double)image.Size.Width, (double)image.Size.Height);
            }
            else if (Device.RuntimePlatform == Device.Android)
            {
                var options = new BitmapFactory.Options
                {
                    InJustDecodeBounds = true
                };
                fileName = fileName.Replace('-', '_').Replace(".png", "");
                var resId = Android.App.Application.Context.Resources.GetIdentifier(
                    fileName, "drawable", Android.App.Application.Context.PackageName);
                BitmapFactory.DecodeResource(
                    Android.App.Application.Context.Resources, resId, options);
                return new Size((double)options.OutWidth, (double)options.OutHeight);
            }

            return Size.Zero;
        }