public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
UriImageSource img = new UriImageSource();
var fileName = ((string)value).Replace(' ', '_').ToLower();
img.Uri = new Uri("ms-appx:///Images/Posters/" + fileName + ".jpg");
return img;
}
public LoadingPlaceholder ()
{
Padding = new Thickness (20);
Title = "Image Loading Gallery";
var source = new UriImageSource {
Uri = new Uri ("http://www.nasa.gov/sites/default/files/styles/1600x1200_autoletterbox/public/images/298773main_EC02-0282-3_full.jpg"),
CachingEnabled = false
};
var image = new Image {
Source = source,
WidthRequest = 200,
HeightRequest = 200,
};
var indicator = new ActivityIndicator {Color = new Color (.5),};
indicator.SetBinding (ActivityIndicator.IsRunningProperty, "IsLoading");
indicator.BindingContext = image;
var grid = new Grid();
grid.RowDefinitions.Add (new RowDefinition());
grid.Children.Add (image);
grid.Children.Add (indicator);
Content = grid;
}
void OnTapped(object sender, EventArgs args)
{
Image theImage = ((Image)sender);
Xamarin.Forms.UriImageSource source = ((Xamarin.Forms.UriImageSource)theImage.Source);
((App)Application.Current).pageChange2(new ImageShow(source));
}
public async Task<IControl> GetImage(UriImageSource source, ImageFormat format)
{
using (var stream = await Forms.UpdateContext.Wait(source.GetStreamAsync()))
{
if (stream == null)
throw new ArgumentException("Resource not found", "source");
return await ImageFactory.CreateFromStream(stream, format, CancellationToken.None);
}
}
public PeopleViewModel()
{
_peopleService = new PeopleService();
this.ChoosePersonCommand = new Command(FindPerson);
_sourceForImage = new UriImageSource();
_pathToPhoto = "https://randomuser.me/api/portraits/women/19.jpg";
_sourceForImage.Uri = new Uri(_pathToPhoto);
SourcePhoto = _sourceForImage;
}
const int ImageSize = 88*2; //176
void GetImage () {
var p = (PersonViewModel)BindingContext;
var person = p.Person;
if (person.HasEmail) {
var imageUrl = Gravatar.GetImageUrl (person.Email, ImageSize);
var loader = new UriImageSource ();
loader.Uri = imageUrl;
PersonImage.Source = loader;
}
}
public ZoomVM()
{
_indexGenerator = new Random();
_imageUrls = new List<ImageResource>
{
new ImageResource{ ImageFrom = ImageOrigin.Uri, ImageSourceText = "http://yeahsoup.s3-us-west-2.amazonaws.com/wp-content/uploads/2015/05/img1114.jpg"},
new ImageResource{ ImageFrom = ImageOrigin.Stream, ImageSourceText = "http://i.telegraph.co.uk/multimedia/archive/02262/A124CE_2262003b.jpg"},
new ImageResource{ ImageFrom = ImageOrigin.Uri, ImageSourceText = "http://i.telegraph.co.uk/multimedia/archive/01476/chimp_1476818c.jpg"},
new ImageResource{ ImageFrom = ImageOrigin.Stream, ImageSourceText = "http://i.huffpost.com/gen/1490756/images/o-CHIMPANZEE-facebook.jpg"},
new ImageResource{ ImageFrom = ImageOrigin.Uri, ImageSourceText = "http://static1.squarespace.com/static/523b539be4b0a75330f9c8ce/55a55614e4b01d30adbfe144/55a557ace4b0632463d49108/1436909257139/babyowl.jpg?format=1000w"},
new ImageResource{ ImageFrom = ImageOrigin.Uri, ImageSourceText = "http://www.rantlifestyle.com/wp-content/uploads/2014/06/schattigebabydier11.jpg"},
new ImageResource{ ImageFrom = ImageOrigin.Stream, ImageSourceText = "http://ww2.valdosta.edu/~kaletour/bb1.jpg"},
new ImageResource{ ImageFrom = ImageOrigin.Uri, ImageSourceText = "https://36.media.tumblr.com/5c493da746cc1c1f438ae304591244c4/tumblr_n9a78n99Ea1tvs3v3o1_500.jpg"},
new ImageResource{ ImageFrom = ImageOrigin.Uri, ImageSourceText = "http://streetloop.com/wp-content/uploads/2014/07/Baby-animals-looking-like-their-parents25.jpg"}
};
ToggleZoomCommand = new Command((_) =>
{
EnableZoom = !EnableZoom;
});
ChangeImageCommand = new Command(async (_) =>
{
var index = _indexGenerator.Next(0, _imageUrls.Count - 1);
var resource = _imageUrls[index];
ImageComesFrom = Enum.GetName(typeof(ImageOrigin), resource.ImageFrom);
if (resource.ImageFrom == ImageOrigin.Uri)
Image = new UriImageSource() { Uri = new Uri(resource.ImageSourceText)};
else if (resource.ImageFrom == ImageOrigin.Stream)
{
// this would normally be something off the device, but any stream will do so we'll just manually get a stream to the online image
var client = new HttpClient(new NativeMessageHandler());
var stream = await client.GetStreamAsync(resource.ImageSourceText);
Image = ImageSource.FromStream(() => stream);
}
else
throw new NotSupportedException($"Unable to load image of type {ImageComesFrom} with value {resource.ImageSourceText}.");
});
// enable zoom should initially be false
EnableZoom = false;
// initialize the image
ChangeImageCommand.Execute(null);
}
public CustomCell()
{
var image = new Image
{
HorizontalOptions = LayoutOptions.Start,
Aspect = Aspect.AspectFill
};
var source = new UriImageSource {
CachingEnabled = false,
};
source.SetBinding(UriImageSource.UriProperty, new Binding("Image", converter: new UriConverter()));
image.Source = source;
View = image;
}
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
if (value == null)
return null;
var url = value.ToString();
try
{
var source = new UriImageSource()
{
Uri = new Uri(url),
CachingEnabled = true,
CacheValidity = Constants.ImageCacheTimespan
};
return source;
}
catch
{
return null;
}
}
private void FetchPhoto()
{
//Prepare for new image.
image.Source = null;
string url = imageList.Photos[imageListIndex];
//Set the filename.
filenameLabel.Text = url.Substring(url.LastIndexOf('/') + 1);
//Create the UriImageSource.
UriImageSource imageSource = new UriImageSource
{
Uri = new Uri(url + "?Width=1080"),
CacheValidity = TimeSpan.FromDays(30)
};
//Set the Image source
image.Source = imageSource;
//Enable or Disable buttons.
prevButton.IsEnabled = imageListIndex > 0;
nextButton.IsEnabled = imageListIndex < imageList.Photos.Count - 1;
}
public User (string name, string message, string picture)
{
Name = name;
Picture = new UriImageSource { Uri = new Uri(picture)};
}
public ImageSource GetSource(string filePath)
{
ImageSource source;
if (filePath.StartsWith ("http")) {
source = new UriImageSource {
Uri = new Uri (filePath),
CachingEnabled = true,
CacheValidity = new TimeSpan (5, 0, 0, 0)
};
} else {
source = ImageSource.FromFile (Path.Combine (GlobalVariables.DownloadPath, filePath));
}
return source;
}
public ImagePage()
{
// Layout controls
quitButton = new Button
{
Text = "Quit"
};
quitButton.Clicked += quitButton_Clicked;
noTargetButton = new Button
{
Text = "No Target"
};
noTargetButton.Clicked += noTargetButton_Clicked;
doneButton = new Button
{
Text = "Done"
};
doneButton.Clicked += doneButton_Clicked;
resetLabelsButton = new Button
{
Text = "Reset"
};
resetLabelsButton.Clicked += resetLabelsButton_Clicked;
tapcounter = new Label
{
Text = "TAPPED 0 TIMES"
};
ImageSource mImageSource = new UriImageSource
{
Uri = new Uri(ServerConnection.imageResource + "1")
};
mImage = new Image
{
HorizontalOptions = LayoutOptions.Center,
VerticalOptions = LayoutOptions.Center,
BackgroundColor = Color.Yellow,
HeightRequest = 200,
Aspect = Xamarin.Forms.Aspect.AspectFit,
//Source = "http://developer.xamarin.com/demo/IMG_1415.JPG"
//Source = ImageSource.FromResource("ResourceBitmapCode.Images.img.jpg")
Source = mImageSource
};
AbsoluteLayout.SetLayoutFlags(mImage, AbsoluteLayoutFlags.None);
tapPointsLayout = new MR.Gestures.AbsoluteLayout
{
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.Center,
BackgroundColor = Color.Teal
};
tapPointsLayout.Tapped += absoluteLayout_Tapped;
ResetLabels();
LayoutPage();
}
public RatingDetailView(CheeseAndRating theRating)
{
_viewModel = new RatingDetailViewModel (theRating, this);
BindingContext = _viewModel;
this.SetBinding (ContentPage.TitleProperty, "Title");
AbsoluteLayout cheeseInfoLayout = new AbsoluteLayout {
HeightRequest = 250,
BackgroundColor = CheeseColors.PURPLE
};
var cheeseName = new Label {
FontSize = 30,
FontFamily = "AvenirNext-DemiBold",
TextColor = Color.White
};
cheeseName.SetBinding (Label.TextProperty, "CheeseName");
var dairyName = new Label {
TextColor = Color.FromHex ("#ddd"),
FontFamily = "AvenirNextCondensed-Medium"
};
dairyName.SetBinding (Label.TextProperty, "DairyName");
UriImageSource uriImgSource = new UriImageSource ();
uriImgSource.SetBinding (UriImageSource.UriProperty, "CheesePhotoUri");
_backgroundImage = new Image () {
Source = uriImgSource,
Aspect = Aspect.AspectFill,
};
var overlay = new BoxView () {
Color = Color.Black.MultiplyAlpha (.7f)
};
var notesLabel = new Label () {
FontSize = 14,
TextColor = Color.FromHex ("#ddd")
};
notesLabel.SetBinding (Label.TextProperty, "RatingDescription");
var description = new Frame () {
Padding = new Thickness (10, 5),
HasShadow = false,
BackgroundColor = Color.Transparent,
Content = notesLabel
};
AbsoluteLayout.SetLayoutFlags (overlay, AbsoluteLayoutFlags.All);
AbsoluteLayout.SetLayoutBounds (overlay, new Rectangle (0, 1, 1, 0.3));
AbsoluteLayout.SetLayoutFlags (_backgroundImage, AbsoluteLayoutFlags.All);
AbsoluteLayout.SetLayoutBounds (_backgroundImage, new Rectangle (0f, 0f, 1f, 1f));
AbsoluteLayout.SetLayoutFlags (cheeseName, AbsoluteLayoutFlags.PositionProportional);
AbsoluteLayout.SetLayoutBounds (cheeseName,
new Rectangle (0.1, 0.85, AbsoluteLayout.AutoSize, AbsoluteLayout.AutoSize)
);
AbsoluteLayout.SetLayoutFlags (dairyName, AbsoluteLayoutFlags.PositionProportional);
AbsoluteLayout.SetLayoutBounds (dairyName,
new Rectangle (0.1, 0.95, AbsoluteLayout.AutoSize, AbsoluteLayout.AutoSize)
);
cheeseInfoLayout.Children.Add (_backgroundImage);
cheeseInfoLayout.Children.Add (overlay);
cheeseInfoLayout.Children.Add (cheeseName);
cheeseInfoLayout.Children.Add (dairyName);
Content = new StackLayout () {
BackgroundColor = Color.FromHex ("#333"),
Children = {
cheeseInfoLayout, description
}
};
}
public Message (string name, string message, string picture)
{
Name = name;
Body = message;
Picture = new UriImageSource { Uri = new Uri(picture)};
}
