public async void SavePictureToDisk(string photoPath)
{
var someImage = new UIImage(photoPath);
someImage.SaveToPhotosAlbum((image, error) => {
var o = image;
});
}
public async Task <bool> SaveImage(string directory, string filename, ImageSource img)
{
bool success = false;
NSData imgData = null;
var renderer = new Xamarin.Forms.Platform.iOS.StreamImagesourceHandler();
UIKit.UIImage photo = await renderer.LoadImageAsync(img);
var savedImageFilename = System.IO.Path.Combine(directory, filename);
NSFileManager.DefaultManager.CreateDirectory(directory, true, null);
if (System.IO.Path.GetExtension(filename).ToLower() == ".png")
{
imgData = photo.AsPNG();
}
else
{
imgData = photo.AsJPEG(100);
}
NSError err = null;
success = imgData.Save(savedImageFilename, NSDataWritingOptions.Atomic, out err);
return(success);
}
private UIColor GetPixelColor(CGPoint point, UIImage image)
{
var rawData = new byte[4];
var handle = GCHandle.Alloc(rawData);
UIColor resultColor = null;
try
{
using (var colorSpace = CGColorSpace.CreateDeviceRGB())
{
using (var context = new CGBitmapContext(rawData, 1, 1, 8, 4, colorSpace, CGImageAlphaInfo.PremultipliedLast))
{
context.DrawImage(new CGRect(-point.X, point.Y - image.Size.Height, image.Size.Width, image.Size.Height), image.CGImage);
float red = (rawData[0]) / 255.0f;
float green = (rawData[1]) / 255.0f;
float blue = (rawData[2]) / 255.0f;
float alpha = (rawData[3]) / 255.0f;
resultColor = UIColor.FromRGBA(red, green, blue, alpha);
}
}
}
finally
{
handle.Free();
}
return resultColor;
}
public RaffleDetailScreenController(Tap5050Event raffle,UIImage raffleImage)
{
//objects
this.raffle = raffle;
this.raffleImage = raffleImage;
this.selectedGoalView = SelectedGoalView.Detail;
}
public ImageLoaderStringElement (string caption, NSAction tapped, NSUrl imageUrl, UIImage placeholder) : base (caption, tapped)
#endif
{
Placeholder = placeholder;
ImageUrl = imageUrl;
this.Accessory = UITableViewCellAccessory.None;
}
public override void ViewDidLoad ()
{
base.ViewDidLoad ();
Title = "Color Controls";
View.BackgroundColor = UIColor.White;
resetButton = UIButton.FromType (UIButtonType.RoundedRect);
resetButton.Frame = new CGRect(110, 60, 90, 40);
resetButton.SetTitle ("Reset", UIControlState.Normal);
resetButton.TouchUpInside += (sender, e) => {
sliderSaturation.Value = 1;
sliderBrightness.Value = 0;
sliderContrast.Value = 1;
HandleValueChanged (sender, e);
};
View.Add (resetButton);
labelC = new UILabel(new CGRect(10, 110, 90, 20));
labelS = new UILabel(new CGRect(10, 160, 90, 20));
labelB = new UILabel(new CGRect(10, 210, 90, 20));
labelC.Text = "Contrast";
labelS.Text = "Saturation";
labelB.Text = "Brightness";
View.Add (labelC);
View.Add (labelS);
View.Add (labelB);
sliderBrightness = new UISlider(new CGRect(100, 110, 210, 20));
sliderSaturation = new UISlider(new CGRect(100, 160, 210, 20));
sliderContrast = new UISlider(new CGRect(100, 210, 210, 20));
// http://developer.apple.com/library/mac/#documentation/graphicsimaging/reference/CoreImageFilterReference/Reference/reference.html#//apple_ref/doc/filter/ci/CIColorControls
// set min/max values on slider to match CIColorControls filter
sliderSaturation.MinValue = 0;
sliderSaturation.MaxValue = 2;
sliderBrightness.MinValue = -1;
sliderBrightness.MaxValue = 1;
sliderContrast.MinValue = 0;
sliderContrast.MaxValue = 4;
// set default values
sliderSaturation.Value = 1;
sliderBrightness.Value = 0;
sliderContrast.Value = 1;
sliderContrast.TouchUpInside += HandleValueChanged;
sliderSaturation.TouchUpInside += HandleValueChanged;
sliderBrightness.TouchUpInside += HandleValueChanged;
View.Add (sliderContrast);
View.Add (sliderSaturation);
View.Add (sliderBrightness);
imageView = new UIImageView(new CGRect(10, 240, 300, 200));
sourceImage = UIImage.FromFile ("clouds.jpg");
imageView.Image = sourceImage;
View.Add (imageView);
}
public void Set(Uri imgUrl, string time, UIImage actionImage,
NSMutableAttributedString header, NSMutableAttributedString body,
List<Link> headerLinks, List<Link> bodyLinks, Action<NSUrl> webLinkClicked, bool multilined)
{
if (imgUrl == null)
Image.Image = Images.Avatar;
else
Image.SetImage(new NSUrl(imgUrl.AbsoluteUri), Images.Avatar);
Time.Text = time;
ActionImage.Image = actionImage;
if (header == null)
header = new NSMutableAttributedString();
if (body == null)
body = new NSMutableAttributedString();
Header.AttributedText = header;
Header.Delegate = new LabelDelegate(headerLinks, webLinkClicked);
Body.AttributedText = body;
Body.Hidden = body.Length == 0;
Body.Lines = multilined ? 0 : 4;
Body.Delegate = new LabelDelegate(bodyLinks, webLinkClicked);
foreach (var b in headerLinks)
Header.AddLinkToURL(new NSUrl(b.Id.ToString()), b.Range);
foreach (var b in bodyLinks)
Body.AddLinkToURL(new NSUrl(b.Id.ToString()), b.Range);
AdjustableConstraint.Constant = Body.Hidden ? 0f : 6f;
}
public ImageViewController (UIImage image)
{
ImageView = new ZoomImageView {
Image = image,
AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight
};
}
public ButtonElement (string caption, string value, UIImage image = null)
: base (caption, value, UITableViewCellStyle.Value1)
{
Image = image;
Accessory = UITableViewCellAccessory.DisclosureIndicator;
SelectionStyle = UITableViewCellSelectionStyle.Blue;
}
public MenuElement(string title, UIImage image, Func<UIViewController> tapped)
: base(string.Empty)
{
_title = title;
_image = image;
_tappedFunc = tapped;
}
public byte[] ResizeImage(byte[] imageData, float widthScale, float heightScale)
{
UIImage originalImage = ImageFromByteArray(imageData);
UIImageOrientation orientation = originalImage.Orientation;
var width = (int)(originalImage.Size.Width * widthScale);
var height = (int)(originalImage.Size.Height * heightScale);
//create a 24bit RGB image
using (CGBitmapContext context = new CGBitmapContext(IntPtr.Zero,
(int)width, (int)height, 8,
4 * (int)width, CGColorSpace.CreateDeviceRGB(),
CGImageAlphaInfo.PremultipliedFirst))
{
RectangleF imageRect = new RectangleF(0, 0, width, height);
// draw the image
context.DrawImage(imageRect, originalImage.CGImage);
UIKit.UIImage resizedImage = UIKit.UIImage.FromImage(context.ToImage(), 0, orientation);
// pngとしたときのバイト配列を返す
return(resizedImage.AsPNG().ToArray());
}
}
public static UIImage FilteredImage (UIImage image)
{
var progress = NSProgress.FromTotalUnitCount (-1);
progress.Cancellable = false;
progress.Pausable = false;
UIImage outputImage;
var filter = new CIPhotoEffectTransfer ();
var cgImage = image.CGImage;
var ciImage = CIImage.FromCGImage (cgImage);
filter.SetValueForKey (ciImage, new NSString ("inputImage"));
var outputCIImage = filter.OutputImage;
var ciContext = CIContext.Create ();
var outputCGImage = ciContext.CreateCGImage (outputCIImage, outputCIImage.Extent);
outputImage = UIImage.FromImage (outputCGImage);
outputCGImage.Dispose ();
ciContext.Dispose ();
outputCIImage.Dispose ();
ciImage.Dispose ();
cgImage.Dispose ();
filter.Dispose ();
progress.CompletedUnitCount = 1;
progress.TotalUnitCount = 1;
return outputImage;
}
private void BarcodeScan()
{
scanner = new MobileBarcodeScanner(this.NavigationController);
//buttonDefaultScan = new UIButton(UIButtonType.RoundedRect);
//buttonDefaultScan.Frame = new RectangleF(40, 150, 280, 40);
// buttonDefaultScan = new UIButton(UIButtonType.Custom) {
// Frame = new CGRect(View.Center.X - (View.Bounds.Width - 40) / 2, View.Center.Y - 50, View.Bounds.Width - 40, 100),
// BackgroundColor = UIColor.FromRGB(0, 0.5f, 0),
// };
UIButton buttonDefaultScan = new UIButton (
new CoreGraphics.CGRect (20, View.Center.Y - 100, View.Bounds.Width - 40, 250));
UIImage roundImage = new UIImage ("RoundButton60.png");
buttonDefaultScan.SetImage (roundImage, UIControlState.Normal);
buttonDefaultScan.BackgroundColor = UIColor.Clear;
// BizappTheme.Apply (buttonDefaultScan);
//buttonDefaultScan.Frame = new RectangleF(40, View.Bounds.Height/2.0f, 280, 40);
// buttonDefaultScan.SetTitle("Scan Barcode", UIControlState.Normal);
buttonDefaultScan.TouchUpInside += async (sender, e) =>
{
//Tell our scanner to use the default overlay
scanner.UseCustomOverlay = false;
//We can customize the top and bottom text of the default overlay
scanner.TopText = "Hold camera up to barcode to scan";
scanner.BottomText = "Barcode will automatically scan";
//Start scanning
var result = await scanner.Scan ();
HandleScanResult(result);
};
this.View.AddSubview (buttonDefaultScan);
}
public MenuElement(string title, UIImage image, Action tapped)
: base(string.Empty)
{
_title = title;
_image = image;
_tappedAction = tapped;
}
public async Task<bool> Recognise (CIImage image)
{
if (image == null)
throw new ArgumentNullException ("image");
if (_busy)
return false;
_busy = true;
try {
return await Task.Run (() => {
using (var blur = new CIGaussianBlur ())
using (var context = CIContext.Create ()) {
blur.SetDefaults ();
blur.Image = image;
blur.Radius = 0;
using (var outputCiImage = context.CreateCGImage (blur.OutputImage, image.Extent))
using (var newImage = new UIImage (outputCiImage)) {
_api.Image = newImage;
_api.Recognize ();
return true;
}
}
});
} finally {
_busy = false;
}
}
public byte[] ResizeImage(byte[] imageData)
{
UIImage originalImage = ImageFromByteArray(imageData);
UIImageOrientation orientation = originalImage.Orientation;
int width = (int)originalImage.Size.Width;
int height = (int)originalImage.Size.Height;
//create a 24bit RGB image
using (CGBitmapContext context = new CGBitmapContext(IntPtr.Zero,
(int)width, (int)height, 8,
(int)(4 * width), CGColorSpace.CreateDeviceRGB(),
CGImageAlphaInfo.PremultipliedFirst))
{
RectangleF imageRect = new RectangleF(0, 0, width, height);
// draw the image
context.DrawImage(imageRect, originalImage.CGImage);
UIKit.UIImage resizedImage = UIKit.UIImage.FromImage(context.ToImage(), 0, orientation);
// save the image as a jpeg
return(resizedImage.AsJPEG().ToArray());
}
}
public async System.Threading.Tasks.Task <byte[]> ResizeImage(byte[] imageStream, float width, float height)
{
//Create image using byte array...
UIImage originalImage = ImageFromByteArray(imageStream);
//Send image for roation... if its not up...
byte[] rotatedimg = RotateImage(originalImage);
//Create a new image with the byte array returned from RotateImage()...
UIImage newimage = ImageFromByteArray(rotatedimg);
//create a 24bit RGB image
using (CGBitmapContext context = new CGBitmapContext(IntPtr.Zero,
(int)width, (int)height, 8,
(int)(4 * width), CGColorSpace.CreateDeviceRGB(),
CGImageAlphaInfo.PremultipliedFirst))
{
CGRect imageRect = new CGRect(0, 0, width, height);
// draw the image
context.DrawImage(imageRect, newimage.CGImage);
//UIKit.UIImage resizedImage = UIKit.UIImage.FromImage(context.ToImage(), 0, orientation);
UIKit.UIImage resizedImage = UIKit.UIImage.FromImage(context.ToImage());
// save the image as a jpeg
return(resizedImage.AsJPEG().ToArray());
}
}
public System.IO.Stream RenderToStream (byte[] documentData, int pageIndex)
{
using (MemoryStream ms = new MemoryStream (documentData))
{
// open document
using (Document doc = new Document (ms))
{
// prepare for rendering
int width = (int)doc.Pages [pageIndex].Width;
int height = (int)doc.Pages [pageIndex].Height;
// render the page to a raw bitmap data represented by byte array
byte[] imageData = ConvertBGRAtoRGBA(doc.Pages [pageIndex].RenderAsBytes (width,height, new RenderingSettings (), null));
// create CGDataProvider which will serve CGImage creation
CGDataProvider dataProvider = new CGDataProvider (imageData, 0, imageData.Length);
// create core graphics image using data provider created above, note that
// we use CGImageAlphaInfo.Last(ARGB) pixel format
CGImage cgImage = new CGImage(width,height,8,32,width*4,CGColorSpace.CreateDeviceRGB(),CGImageAlphaInfo.Last,dataProvider,null,false, CGColorRenderingIntent.Default);
// create UIImage and save it to gallery
UIImage finalImage = new UIImage (cgImage);
return finalImage.AsPNG ().AsStream();
}
}
}
public Header()
{
ClipsToBounds = true;
_label = this.Add<UILabel>();
_imageCollapsed = UIImage.FromBundle("collapsed-left");
_imageExpanded = UIImage.FromBundle("expanded-down");
_imageView = new UIImageView(_imageCollapsed);
Add(_imageView);
const int margin = 10;
_imageView
.Anchor(NSLayoutAttribute.Top, this, NSLayoutAttribute.Top, margin)
.Anchor(NSLayoutAttribute.Right, this, NSLayoutAttribute.Right, -margin)
.Anchor(NSLayoutAttribute.Bottom, this, NSLayoutAttribute.Bottom, -margin)
.Layout(NSLayoutAttribute.Height, _imageView.Image.Size.Height)
.Layout(NSLayoutAttribute.Width, _imageView.Image.Size.Width);
_label
.Anchor(NSLayoutAttribute.Left, this, NSLayoutAttribute.Left, margin)
.Anchor(NSLayoutAttribute.CenterY, this, NSLayoutAttribute.CenterY)
.Anchor(NSLayoutAttribute.Right, _imageView, NSLayoutAttribute.Left, -margin);
}
private void CalculateLuminance(UIImage d)
{
var imageRef = d.CGImage;
var width = (int)imageRef.Width;
var height = (int)imageRef.Height;
var colorSpace = CGColorSpace.CreateDeviceRGB();
var rawData = Marshal.AllocHGlobal(height * width * 4);
try
{
var flags = CGBitmapFlags.PremultipliedFirst | CGBitmapFlags.ByteOrder32Little;
var context = new CGBitmapContext(rawData, width, height, 8, 4 * width,
colorSpace, (CGImageAlphaInfo)flags);
context.DrawImage(new CGRect(0.0f, 0.0f, (float)width, (float)height), imageRef);
var pixelData = new byte[height * width * 4];
Marshal.Copy(rawData, pixelData, 0, pixelData.Length);
CalculateLuminance(pixelData, BitmapFormat.BGRA32);
}
finally
{
Marshal.FreeHGlobal(rawData);
}
}
void AddCustomAnnotation(ShinobiChart chart)
{
// Create an annotation
SChartAnnotationZooming an = new SChartAnnotationZooming {
XAxis = chart.XAxis,
YAxis = chart.YAxis,
// Set its location - using the data coordinate system
XValue = dateFormatter.Parse ("01-01-2009"),
YValue = new NSNumber(250),
// Pin all four corners of the annotation so that it stretches
XValueMax = dateFormatter.Parse ("01-01-2011"),
YValueMax = new NSNumber(550),
// Set bounds
Bounds = new CGRect (0, 0, 50, 50),
Position = SChartAnnotationPosition.BelowData
};
// Add some custom content to the annotation
UIImage image = new UIImage ("Apple.png");
UIImageView imageView = new UIImageView (image) { Alpha = 0.1f };
an.AddSubview (imageView);
// Add to the chart
chart.AddAnnotation (an);
}
public static UIImage ToSepia(UIImage source)
{
using (var filter = new CISepiaTone() { Intensity = 0.8f })
{
return ColorSpaceTransformation.ToFilter(source, filter);
}
}
void DownLoadImageWithURL(string url)
{
var request = NSMutableUrlRequest.FromUrl (new NSUrl(url));
NSUrlResponse response;
NSError error;
NSData data = NSUrlConnection.SendSynchronousRequest (request, out response, out error);
if (error == null) {
image = new UIImage (data);
} else {
image = new UIImage ();
}
// NSUrlConnection.SendAsynchronousRequest (request, NSOperationQueue.MainQueue, (NSUrlResponse response, NSData data, NSError error) => {
// if (error == null)
// {
// UIImage image = new UIImage(data);
// imageView.Image = image;
//// if(tableView.images.ElementAt(index) == null)
//// {
//// tableView.images[index] = image;
//// tableView.Parent.View.EventImages.First(ei => ei.thumbnailFile == url).ImageAsNativeControl = image;
//// }
// completionBlock(true,image);
// } else{
// completionBlock(false,null);
// }
// });
}
public async Task <byte[]> RotateImageAsync(byte[] originalImage
, SideOrientation orientation, ImageFormat imageFormat)
{
byte[] resulImage = null;
UIKit.UIImage uiImage = await originalImage.ToImageAsync();
CGBitmapContext bitmapContext = new CGBitmapContext(IntPtr.Zero, (int)uiImage.Size.Height, (int)uiImage.Size.Width, uiImage.CGImage.BitsPerComponent, uiImage.CGImage.BytesPerRow, uiImage.CGImage.ColorSpace, uiImage.CGImage.AlphaInfo);
bitmapContext.RotateCTM(orientation == SideOrientation.RotateToRigth ? (-(float)Math.PI / 2) : (float)Math.PI / 2);
bitmapContext.TranslateCTM(orientation == SideOrientation.RotateToRigth ? -(int)uiImage.Size.Width : 0,
orientation == SideOrientation.RotateToRigth ? 0 : -(int)uiImage.Size.Height);
bitmapContext.DrawImage(new CoreGraphics.CGRect(0, 0, (int)uiImage.Size.Width, (int)uiImage.Size.Height), uiImage.CGImage);
UIImage resultUIImage = UIImage.FromImage(bitmapContext.ToImage());
if (imageFormat == ImageFormat.JPG)
{
resulImage = resultUIImage.AsJPEG().ToArray();
}
else
{
resulImage = resultUIImage.AsPNG().ToArray();
}
return(resulImage);
}
public static FileStream ResizeImageIOS(Stream imageData, float width, float height)
{
UIImage originalImage = ImageFromByteArray(imageData);
UIImageOrientation orientation = originalImage.Orientation;
//create a 24bit RGB image
using (CGBitmapContext context = new CGBitmapContext(IntPtr.Zero,
(int)width, (int)height, 8,
4 * (int)width, CGColorSpace.CreateDeviceRGB(),
CGImageAlphaInfo.PremultipliedFirst))
{
RectangleF imageRect = new RectangleF(0, 0, width, height);
// draw the image
context.DrawImage(imageRect, originalImage.CGImage);
UIKit.UIImage resizedImage = UIKit.UIImage.FromImage(context.ToImage(), 0, orientation);
string path = Path.Combine(Kit.Tools.Instance.TemporalPath, $"{Guid.NewGuid():N}.jpeg");
using (FileStream fileStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
using (MemoryStream memoryStream = new MemoryStream(resizedImage.AsJPEG().ToArray()))
{
memoryStream.Position = 0;
memoryStream.CopyTo(fileStream);
return(fileStream);
}
}
// save the image as a jpeg
}
}
public override void ViewDidLoad()
{
base.ViewDidLoad ();
imageView = new UIImageView(new CGRect(0, 100, 50, 50));
image = UIImage.FromFile("Sample.png");
imageView.Image = image;
View.AddSubview(imageView);
pt = imageView.Center;
UIView.BeginAnimations ("slideAnimation");
UIView.SetAnimationDuration (2);
UIView.SetAnimationCurve (UIViewAnimationCurve.EaseInOut);
UIView.SetAnimationRepeatCount (2);
UIView.SetAnimationRepeatAutoreverses (true);
UIView.SetAnimationDelegate (this);
UIView.SetAnimationDidStopSelector (new Selector ("animationDidStop:finished:context:"));
var xpos = UIScreen.MainScreen.Bounds.Right - imageView.Frame.Width / 2;
var ypos = imageView.Center.Y;
imageView.Center = new CGPoint (xpos, ypos);
UIView.CommitAnimations ();
}
public RatingConfig(UIImage emptyImage, UIImage filledImage, UIImage chosenImage) {
EmptyImage = emptyImage;
FilledImage = filledImage;
ChosenImage = chosenImage;
ScaleSize = 5;
ItemPadding = 0f;
}
public async Task <byte[]> ResizeImageAsync(byte[] imageData, float width, float height)
{
await Task.Run(() =>
{
UIImage originalImage = ImageFromByteArray(imageData);
UIImageOrientation orientation = originalImage.Orientation;
//create a 24bit RGB image
using (CGBitmapContext context = new CGBitmapContext(IntPtr.Zero,
(int)width, (int)height, 8,
4 * (int)width, CGColorSpace.CreateDeviceRGB(),
CGImageAlphaInfo.PremultipliedFirst))
{
RectangleF imageRect = new RectangleF(0, 0, width, height);
// draw the image
context.DrawImage(imageRect, originalImage.CGImage);
resizedImage = UIKit.UIImage.FromImage(context.ToImage(), 0, orientation);
}
});
// save the image as a jpeg
return(resizedImage.AsPNG().ToArray());
}
public EmptyListView(UIImage image, string emptyText)
: base(new CGRect(0, 0, 320f, 480f * 2f))
{
AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight;
ImageView = new UIImageView();
Title = new UILabel();
ImageView.Frame = new CGRect(0, 0, 64f, 64f);
ImageView.TintColor = DefaultColor;
ImageView.ContentMode = UIViewContentMode.ScaleAspectFit;
ImageView.Center = new CGPoint(Frame.Width / 2f, (Frame.Height / 4f) - (ImageView.Frame.Height / 2f));
ImageView.AutoresizingMask = UIViewAutoresizing.FlexibleLeftMargin | UIViewAutoresizing.FlexibleRightMargin | UIViewAutoresizing.FlexibleBottomMargin;
ImageView.Image = image;
Add(ImageView);
Title.Frame = new CGRect(0, 0, 256f, 20f);
Title.Center = new CGPoint(Frame.Width / 2f, ImageView.Frame.Bottom + 30f);
Title.AutoresizingMask = UIViewAutoresizing.FlexibleLeftMargin | UIViewAutoresizing.FlexibleRightMargin |
UIViewAutoresizing.FlexibleBottomMargin | UIViewAutoresizing.FlexibleWidth;
Title.Text = emptyText;
Title.TextAlignment = UITextAlignment.Center;
Title.Font = UIFont.PreferredHeadline;
Title.TextColor = DefaultColor;
Add(Title);
BackgroundColor = UIColor.White;
}
public void Add(string key, UIImage value)
{
if (string.IsNullOrWhiteSpace(key) || value == null)
return;
_cache.SetCost(value, new NSString(key), value.GetMemorySize());
}
public Composer () : base (null, null)
{
Title = "New Comment";
EdgesForExtendedLayout = UIRectEdge.None;
var close = new UIBarButtonItem { Image = Images.Buttons.Cancel };
NavigationItem.LeftBarButtonItem = close;
SendItem = new UIBarButtonItem { Image = Images.Buttons.Save };
NavigationItem.RightBarButtonItem = SendItem;
TextView = new UITextView(ComputeComposerSize(CGRect.Empty));
TextView.Font = UIFont.PreferredBody;
TextView.AutoresizingMask = UIViewAutoresizing.FlexibleHeight | UIViewAutoresizing.FlexibleWidth;
// Work around an Apple bug in the UITextView that crashes
if (ObjCRuntime.Runtime.Arch == ObjCRuntime.Arch.SIMULATOR)
TextView.AutocorrectionType = UITextAutocorrectionType.No;
View.AddSubview (TextView);
_normalButtonImage = ImageFromColor(UIColor.White);
_pressedButtonImage = ImageFromColor(UIColor.FromWhiteAlpha(0.0f, 0.4f));
OnActivation(d =>
{
d(close.GetClickedObservable().Subscribe(_ => CloseComposer()));
d(SendItem.GetClickedObservable().Subscribe(_ => PostCallback()));
});
}
/// <summary>
/// Updates or creates a sublayer to render a border-like shape.
/// </summary>
/// <param name="owner">The parent layer to apply the shape</param>
/// <param name="area">The rendering area</param>
/// <param name="background">The background brush</param>
/// <param name="borderThickness">The border thickness</param>
/// <param name="borderBrush">The border brush</param>
/// <param name="cornerRadius">The corner radius</param>
/// <param name="backgroundImage">The background image in case of a ImageBrush background</param>
/// <returns>An updated BoundsPath if the layer has been created or updated; null if there is no change.</returns>
public CGPath UpdateLayer(
_View owner,
Brush background,
BackgroundSizing backgroundSizing,
Thickness borderThickness,
Brush borderBrush,
CornerRadius cornerRadius,
_Image backgroundImage)
{
// Bounds is captured to avoid calling twice calls below.
var bounds = owner.Bounds;
var area = new CGRect(0, 0, bounds.Width, bounds.Height);
var newState = new LayoutState(area, background, backgroundSizing, borderThickness, borderBrush, cornerRadius, backgroundImage);
var previousLayoutState = _currentState;
if (!newState.Equals(previousLayoutState))
{
#if __MACOS__
owner.WantsLayer = true;
#endif
_layerDisposable.Disposable = null;
_layerDisposable.Disposable = InnerCreateLayer(owner as UIElement, owner.Layer, newState);
_currentState = newState;
}
return(newState.BoundsPath);
}
protected override UIImage Transform(UIImage source)
{
using (var colorSpace = CGColorSpace.CreateDeviceGray())
{
return ColorSpaceTransformation.ToColorSpace(source, colorSpace);
}
}
protected void Handle_FinishedPickingMedia (object sender, UIImagePickerMediaPickedEventArgs e)
{
// determine what was selected, video or image
bool isImage = false;
if (e.Info [UIImagePickerController.MediaType].ToString () == "public.image") {
isImage = true;
}
// // get common info (shared between images and video)
// NSUrl referenceURL = e.Info[new NSString("UIImagePickerControllerReferenceUrl")] as NSUrl;
// if (referenceURL != null)
// Console.WriteLine("Url:"+referenceURL.ToString ());
// if it was an image, get the other image info
if(isImage) {
// get the original image
originalImage = e.Info[UIImagePickerController.OriginalImage] as UIImage;
if(originalImage != null) {
// do something with the image
imgProfilePic.Image = originalImage; // display
}
} else { // if it's a video
UIAlertView alert = new UIAlertView ("Invalid Format", "Looks like you selected a video", null, "OK", null);
alert.Show ();
}
// dismiss the picker
imagePicker.DismissViewController (true, null);
}
/// <summary>
/// Save UIImage into directory
/// </summary>
/// <param name="image"></param>
void Save(UIKit.UIImage image)
{
var documentsDirectory = Environment.GetFolderPath
(Environment.SpecialFolder.Personal);
var directoryname = Path.Combine(documentsDirectory, "FolderName");
Directory.CreateDirectory(directoryname);
string jpgFile = System.IO.Path.Combine(directoryname, "image.jpg");
Foundation.NSData imgData = image.AsJPEG();
Foundation.NSError err = null;
if (imgData.Save(jpgFile, false, out err))
{
Console.WriteLine("saved as" + jpgFile);
}
else
{
Console.WriteLine("not saved as " + jpgFile + "because" + err.LocalizedDescription);
}
var alert = UIAlertController.Create("Saved Location", jpgFile, UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
ShowViewController(alert, null);
}
public static Image AsImage(this PlatformImage image)
{
return(new Image()
{
PlatformImage = image
});
}
/// <summary>
/// Creates grayscaled image from existing image.
/// </summary>
/// <param name="oldImage">Image to convert.</param>
/// <returns>Returns grayscaled image.</returns>
public static UIImage GrayscaleImage( UIImage oldImage )
{
var imageRect = new RectangleF(PointF.Empty, (SizeF) oldImage.Size);
CGImage grayImage;
// Create gray image.
using (CGColorSpace colorSpace = CGColorSpace.CreateDeviceGray()) {
using (var context = new CGBitmapContext(IntPtr.Zero, (int) imageRect.Width, (int) imageRect.Height, 8, 0, colorSpace, CGImageAlphaInfo.None)) {
context.DrawImage(imageRect, oldImage.CGImage);
grayImage = context.ToImage();
}
}
// Create mask for transparent areas.
using (var context = new CGBitmapContext(IntPtr.Zero, (int) imageRect.Width, (int) imageRect.Height, 8, 0, CGColorSpace.Null, CGBitmapFlags.Only)) {
context.DrawImage(imageRect, oldImage.CGImage);
CGImage alphaMask = context.ToImage();
var newImage = new UIImage(grayImage.WithMask(alphaMask));
grayImage.Dispose();
alphaMask.Dispose();
return newImage;
}
}
void Init (CKRecord record, bool onServer)
{
IsOnServer = onServer;
Record = record;
Thumbnail = LoadImage (ThumbnailKey);
FullImage = LoadImage (FullsizeKey);
}
public override void ViewDidLoad()
{
AddOption ("TKChart", useChart);
AddOption ("TKCalendar", useCalendar);
AddOption ("UITableView", useTableView);
AddOption ("UICollectionView", useCollectionView);
AddOption ("TKListView", useListView);
base.ViewDidLoad ();
string[] imageNames = new string[] {"CENTCM.jpg", "FAMIAF.jpg", "CHOPSF.jpg", "DUMONF.jpg", "ERNSHM.jpg", "FOLIGF.jpg"};
string[] names = new string[] { "John", "Abby", "Phill", "Saly", "Robert", "Donna" };
NSMutableArray array = new NSMutableArray ();
Random r = new Random ();
for (int i = 0; i < imageNames.Length; i++) {
UIImage image = new UIImage (imageNames [i]);
this.AddItem (array, names [i], r.Next (100), r.Next (100) > 50 ? "two" : "one", r.Next (10), image);
}
this.dataSource.DisplayKey = "Name";
this.dataSource.ValueKey = "Value";
this.dataSource.ItemSource = array;
this.useChart (this, EventArgs.Empty);
}
public override void AwakeFromNib ()
{
playBtnBg = UIImage.FromFile ("play.png").StretchableImage (12, 0);
pauseBtnBg = UIImage.FromFile ("pause.png").StretchableImage (12, 0);
_playButton.SetImage (playBtnBg, UIControlState.Normal);
_duration.AdjustsFontSizeToFitWidth = true;
_currentTime.AdjustsFontSizeToFitWidth = true;
_progressBar.MinValue = 0;
var fileUrl = NSBundle.MainBundle.PathForResource ("sample", "m4a");
player = AVAudioPlayer.FromUrl (new NSUrl (fileUrl, false));
player.FinishedPlaying += delegate(object sender, AVStatusEventArgs e) {
if (!e.Status)
Console.WriteLine ("Did not complete successfully");
player.CurrentTime = 0;
UpdateViewForPlayerState ();
};
player.DecoderError += delegate(object sender, AVErrorEventArgs e) {
Console.WriteLine ("Decoder error: {0}", e.Error.LocalizedDescription);
};
player.BeginInterruption += delegate {
UpdateViewForPlayerState ();
};
player.EndInterruption += delegate {
StartPlayback ();
};
_fileName.Text = String.Format ("Mono {0} ({1} ch)", Path.GetFileName (player.Url.RelativePath), player.NumberOfChannels);
UpdateViewForPlayerInfo ();
UpdateViewForPlayerState ();
}
protected override void OnElementChanged(ElementChangedEventArgs <SegmentView> e)
{
base.OnElementChanged(e);
if (e.NewElement == null)
{
return;
}
if (Control == null)
{
_control = new UISegmentedControl();
for (int i = 0; i < Element.Children.Count; i++)
{
var segment = Element.Children.ElementAt(i);
if (segment.Image != null)
{
var img = NativeImage.FromFile(((FileImageSource)segment.Image).File);
img = img.Scale(new CoreGraphics.CGSize(17, 17)); // Apple docs
_control.InsertSegment(img, i, false);
}
else
{
_control.InsertSegment(segment.Title, i, false);
}
}
_control.ClipsToBounds = true;
_control.TintColor = Element.TintColor.ToUIColor();
_control.SelectedSegment = Element.SelectedIndex;
_control.BackgroundColor = Element.BackgroundColor.ToUIColor();
_control.Layer.MasksToBounds = true;
_control.Layer.BorderColor = Element.IsBorderColorSet()
? Element.BorderColor.ToCGColor()
: Element.TintColor.ToCGColor();
if (Element.IsCornerRadiusSet())
{
_control.Layer.CornerRadius = Element.CornerRadius;
_control.Layer.BorderWidth = (nfloat)Element.BorderWidth;
}
SetSelectedTextColor();
SetNativeControl(_control);
}
if (e.OldElement != null && _control != null)
{
_control.ValueChanged -= OnSelectedIndexChanged;
}
if (e.NewElement != null)
{
_control.ValueChanged += OnSelectedIndexChanged;
}
}
public void FinishedPickingImage(UIKit.UIImagePickerController picker, UIKit.UIImage image, Foundation.NSDictionary editingInfo)
{
this.ImagenEmpresa.Image = image;
NSData imageData = image.AsPNG();
InfoPerifl.Empresa_Actual.Empresa_Logotipo_Perfil = new Byte[imageData.Length];
EventosVistaTrabajoDelegate.InfoEmpresa(InfoPerifl);
picker.DismissViewController(true, null);
}
public Stream GetJPGStreamFromByteArray(byte[] image)
{
// test
UIKit.UIImage images = new UIKit.UIImage(Foundation.NSData.FromArray(image));
byte[] bytes = images.AsJPEG(100).ToArray();
Stream imgStream = new MemoryStream(bytes);
return(imgStream);
}
public LayoutState(CGRect area, Brush background, Thickness borderThickness, Brush borderBrush, CornerRadius cornerRadius, _Image backgroundImage)
{
Area = area;
Background = background;
BorderBrush = borderBrush;
CornerRadius = cornerRadius;
BorderThickness = borderThickness;
BackgroundImage = backgroundImage;
}
public void FinishedPickingImage(UIKit.UIImagePickerController picker, UIKit.UIImage image, Foundation.NSDictionary editingInfo)
{
ImagenPublicacion = image;
btnRemoveImage.Hidden = false;
btnComentar.Enabled = true;
this.btnImagen.SetImage(image, UIControlState.Normal);
this.btnImagen.ContentMode = UIViewContentMode.ScaleAspectFit;
this.btnImagen.Enabled = true;
picker.DismissViewController(true, null);
}
public void FinishedPickingImage(UIKit.UIImagePickerController picker, UIKit.UIImage image, Foundation.NSDictionary editingInfo)
{
ImagenPublicacion = ImageHelper.ReescalImage(image);
this.btnImageComment.SetImage(image, UIControlState.Normal);
this.btnDeleteImge.Hidden = false;
this.btnPublicar.Enabled = true;
this.btnImageComment.ContentMode = UIViewContentMode.ScaleAspectFit;
this.btnImageComment.Enabled = true;
picker.DismissViewController(true, null);
}
public static byte[] ScaleImage(byte[] originalImage, double finalImagePercentage)
{
UIKit.UIImage uiImage = originalImage.ToImage();
nfloat width = uiImage.Size.Width;
nfloat height = uiImage.Size.Height;
int scaleWidth = Convert.ToInt16(width * (finalImagePercentage * .01));
int scaleHeight = Convert.ToInt16(height * (finalImagePercentage * .01));
return(ResizeImage(originalImage, scaleHeight, scaleWidth));
}
/// <summary>
/// Scales an image.
/// </summary>
/// <returns>The scaled image.</returns>
/// <param name="originalImage">Original image.</param>
/// <param name="finalImagePercentage">Final image percentage.</param>
/// <param name="imageFormat">Image format Jpg or Png.</param>
public async Task <byte[]> ScaleImageAsync(byte[] originalImage, double finalImagePercentage, ImageFormat imageFormat)
{
UIKit.UIImage uiImage = await originalImage.ToImageAsync();
nfloat width = uiImage.Size.Width;
nfloat height = uiImage.Size.Height;
int scaleWidth = Convert.ToInt16(width * (finalImagePercentage * .01));
int scaleHeight = Convert.ToInt16(height * (finalImagePercentage * .01));
return(await ResizeImageAsync(originalImage, scaleHeight, scaleWidth, imageFormat));
}
public byte[] ResizeImage(byte[] imageData, float width, float height)
{
UIImage originalImage = ImageFromByteArray(imageData);
UIImageOrientation orientImg = originalImage.Orientation;
float oldWidth = (float)originalImage.Size.Width;
float oldHeight = (float)originalImage.Size.Height;
float scaleFactor = 0f;
if (oldWidth > oldHeight)
{
scaleFactor = width / oldWidth;
}
else
{
scaleFactor = height / oldHeight;
}
float newHeight = oldHeight * scaleFactor;
float newWidth = oldWidth * scaleFactor;
//create a 24bit RGB image
using (CGBitmapContext context = new CGBitmapContext(IntPtr.Zero,
(int)newWidth, (int)newHeight, 8,
(int)(4 * newWidth), CGColorSpace.CreateDeviceRGB(),
CGImageAlphaInfo.PremultipliedFirst))
{
RectangleF imageRect = new RectangleF(0, 0, newWidth, newHeight);
// draw the image
context.DrawImage(imageRect, originalImage.CGImage);
//UIKit.UIImage resizedImage = UIKit.UIImage.FromImage(context.ToImage());
//Das skalierte Bild um 90 Grad drehen
//UIKit.UIImage resizedImage = UIKit.UIImage.FromImage(context.ToImage(), 1, UIImageOrientation.Right);
UIKit.UIImage resizedImage = UIKit.UIImage.FromImage(context.ToImage(), 1, orientImg);
//Das gedrehte Bild neu rendern, höhe und Breite vertauscht um das Seitenverhältniss beizubehalten
UIGraphics.BeginImageContextWithOptions(new CGSize((float)resizedImage.CGImage.Height, (float)resizedImage.CGImage.Width), true, 1.0f); //TODO: Height und Width sind evtl. vertauscht
resizedImage.Draw(new CGRect(0, 0, (float)resizedImage.CGImage.Height, (float)resizedImage.CGImage.Width)); //TODO: Height und Width sind evtl. vertauscht
var resultImage = UIGraphics.GetImageFromCurrentImageContext();
UIGraphics.EndImageContext();
resizedImage = resultImage;
return(resizedImage.AsJPEG(100).ToArray());
// save the image as a jpeg
//return resizedImage.AsJPEG(100).ToArray();
}
}
public override void ViewWillAppear(bool animated)
{
base.ViewWillAppear(false);
UIKit.UIGraphics.BeginImageContext(this.View.Frame.Size);
UIKit.UIImage i = UIKit.UIImage.FromBundle("background_2_art_1.png");
i = i.Scale(this.View.Frame.Size);
this.View.BackgroundColor = UIKit.UIColor.FromPatternImage(i);
}
public static byte[] ResizeImage(byte[] originalImage, int newHeight, int newWidth)
{
byte[] resulImage = null;
UIKit.UIImage uiImage = originalImage.ToImage();
UIGraphics.BeginImageContext(new CoreGraphics.CGSize(newWidth, newHeight));
uiImage.Draw(new CoreGraphics.CGRect(0, 0, newWidth, newHeight));
UIImage resultUIImage = UIGraphics.GetImageFromCurrentImageContext();
UIGraphics.EndImageContext();
resulImage = resultUIImage.AsJPEG().ToArray();
return(resulImage);
}
private void SetImage(_Image image, bool failIfNull = true)
{
ImageChanged?.Invoke(image);
if (image != null)
{
OnImageOpened();
}
else if (failIfNull)
{
OnImageFailed();
}
}
async Task <byte[]> GetImageAsByteAsync(bool usePNG, int quality, int desiredWidth, int desiredHeight)
{
PImage image = null;
await ImageService.Instance.Config.MainThreadDispatcher.PostAsync(() =>
{
if (Control != null)
{
image = Control.Image;
}
}).ConfigureAwait(false);
if (image == null)
{
return(null);
}
if (desiredWidth != 0 || desiredHeight != 0)
{
image = image.ResizeUIImage((double)desiredWidth, (double)desiredHeight, InterpolationMode.Default);
}
#if __IOS__
NSData imageData = usePNG ? image.AsPNG() : image.AsJPEG((nfloat)quality / 100f);
if (imageData == null || imageData.Length == 0)
{
return(null);
}
var encoded = imageData.ToArray();
imageData.TryDispose();
return(encoded);
#elif __MACOS__
byte[] encoded;
using (MemoryStream ms = new MemoryStream())
using (var stream = usePNG ? image.AsPngStream() : image.AsJpegStream(quality))
{
stream.CopyTo(ms);
encoded = ms.ToArray();
}
if (desiredWidth != 0 || desiredHeight != 0)
{
image.TryDispose();
}
return(encoded);
#endif
}
/// <summary>
/// Convert byte array into UIImage
/// </summary>
/// <param name="bytes"></param>
/// <returns></returns>
private UIKit.UIImage ImageFromBytes(byte[] bytes)
{
try
{
Foundation.NSData data = Foundation.NSData.FromArray(bytes);
UIKit.UIImage image = UIImage.LoadFromData(data);
UIGraphics.EndImageContext();
return(image);
}
catch (Exception)
{
return(null);
}
}
public static byte[] ResizeImageIOS(UIImage originalImage, float width, float height)
{
UIImageOrientation orientation = originalImage.Orientation;
using (CGBitmapContext context = new CGBitmapContext(IntPtr.Zero,
(int)width, (int)height, 8,
4 * (int)width, CGColorSpace.CreateDeviceRGB(),
CGImageAlphaInfo.PremultipliedFirst))
{
//RectangleF imageRect = new RectangleF(0, 0, width, height);
//context.DrawImage(imageRect, originalImage.CGImage);
UIKit.UIImage resizedImage = UIKit.UIImage.FromImage(context.ToImage(), 0, orientation);
return(resizedImage.AsJPEG().ToArray());
}
}
public static UIKit.UIImage ImageFromByteArray(byte[] data)
{
if (data == null)
{
return(null);
}
UIKit.UIImage image;
try {
image = new UIKit.UIImage(Foundation.NSData.FromArray(data));
} catch (Exception e) {
Console.WriteLine("Image load failed: " + e.Message);
return(null);
}
return(image);
}
public static UIKit.UIImage ImageFromByteArray(byte[] data)
{
if (data == null)
{
return(null);
}
UIKit.UIImage image;
try
{
image = new UIKit.UIImage(Foundation.NSData.FromArray(data));
}
catch (Exception e)
{
return(null);
}
return(image);
}
public override void InvokedURL(WTArchitectView architectView, NSUrl url)
{
UIKit.UIImage test = architectView.Capture();
Console.WriteLine("architect view invoked url: " + url);
// we need to fire this back to the main page so that the main page now enables the rest of the quiz pages ...
MainMenuPage.SetApplicationCurrentProperty("WestAfrica", "true");
// SEND EMAIL WITH PHOTO or TWEET PHOTO HERE....
// Button emailButton = new Button { Text = "Email" };
// emailButton.Clicked += (sender, e) =>
// {
// Device.OpenUri(new Uri("mailto:[email protected]"));
// };
}
/// <summary>
/// Resizes the image to have the specified maximum sizes.
/// </summary>
/// <param name="source">The source image to resize.</param>
/// <param name="maxWidth">The max width of the image.</param>
/// <param name="maxHeight">The max height of the image.</param>
/// <returns>The resized image data.</returns>
public override Stream ResizeImage(Stream source, int maxWidth, int maxHeight)
{
// Load the bitmap
using (var originalBitmap = new UIKit.UIImage(NSData.FromStream(source)))
{
// If the image does not need to be resized
var originalWidth = originalBitmap.Size.Width;
var originalHeight = originalBitmap.Size.Height;
if ((originalWidth <= maxWidth) && (originalHeight <= maxHeight))
{
return(source);
}
// Calculate the resized image size
var resizedHeight = (float)originalHeight;
var resizedWidth = (float)originalWidth;
// If height is greater than the maximum height
if (resizedHeight > maxHeight)
{
resizedHeight = maxHeight;
var factor = (float)originalHeight / maxHeight;
resizedWidth = (float)originalWidth / factor;
}
// If the width is greater than the maximum width
if (resizedWidth > maxWidth)
{
resizedWidth = maxWidth;
var factor = (float)originalWidth / maxWidth;
resizedHeight = (float)originalHeight / factor;
}
// Resize the image
UIGraphics.BeginImageContext(new SizeF(resizedWidth, resizedHeight));
originalBitmap.Draw(new RectangleF(0, 0, resizedWidth, resizedHeight));
var resizedBitmap = UIGraphics.GetImageFromCurrentImageContext();
UIGraphics.EndImageContext();
// Save the rescaled image
var imageData = resizedBitmap.AsJPEG(0.95f).ToArray();
resizedBitmap.Dispose();
return(new MemoryStream(imageData));
}
}
public void FinishedPickingImage(UIKit.UIImagePickerController picker, UIKit.UIImage image, Foundation.NSDictionary editingInfo)
{
if (this.TouchedBack)
{
image = ImageHelper.ReescalProfileBackImage(image);
this.btnFondoImagen.SetBackgroundImage(image, UIControlState.Normal);
NewInfoPerfil.Usuario_Fotografia_FondoPerfil = image?.AsPNG().ToArray();
}
else if (this.TouchedProfile)
{
image = ImageHelper.ReescalProfileImage(image);
this.btnImagen.SetBackgroundImage(image, UIControlState.Normal);
NewInfoPerfil.Usuario_Fotografia_Perfil = image?.AsPNG().ToArray();
}
this.TouchedBack = false;
this.TouchedProfile = false;
picker.DismissViewController(true, null);
}