/// <summary>
/// Invoked when this page is about to be displayed in a Frame.
/// </summary>
/// <param name="e">Event data that describes how this page was reached.
/// This parameter is typically used to configure the page.</param>
protected override void OnNavigatedTo(NavigationEventArgs e)
{
var initOptions = e.Parameter as CameraViewInitObject;
if (initOptions == null)
{
Frame.GoBack();
return;
}
_cameraOptions = initOptions.CameraOptions;
_qrDetectionModeEnabled = initOptions.QRDetectionMode;
_qrAutoHandleQrCode = initOptions.AutoHandleQRCode;
((Storyboard)Resources["CameraGridFadeInStoryBoard"]).Begin();
HardwareButtons.BackPressed += HardwareButtons_BackPressed;
Window.Current.VisibilityChanged += Current_VisibilityChanged;
}
public CameraOptions overlaySettings = new CameraOptions(); // default values
public CameraOverlayView (UIImagePickerController controller, CameraOptions _settings, CGRect frame) : base (frame)
{
log ("Intializing Camera Overlay from frame...");
if(_settings != null)
overlaySettings = _settings;
// Clear the background of the overlay:
this.Opaque = false;
this.BackgroundColor = UIColor.Clear; // transparent
UIImage overlayGraphic;
string OverlayImage = _settings.Overlay;
log ("Overlay Image: "+OverlayImage);
if (OverlayImage != null && File.Exists("./"+OverlayImage+".png")){
log ("Overlay Image: "+OverlayImage + " found!");
overlayGraphic = UIImage.FromBundle (OverlayImage+".png");
} else {
log ("Overlay Image not found");
// Load the image to show in the overlay:
overlayGraphic = UIImage.FromBundle (@"overlaygraphic.png");
}
overlayGraphic = overlayGraphic.ImageWithRenderingMode (UIImageRenderingMode.AlwaysTemplate); // convert image to template
UIImageView overlayGraphicView = new UIImageView (overlayGraphic);
overlayGraphicView.Frame = new CGRect(
overlaySettings.GuidelinesMargins,
overlaySettings.GuidelinesMargins,
frame.Width - overlaySettings.GuidelinesMargins * 2 ,
frame.Height - overlaySettings.GuidelinesMargins * 2);
log ("guidelines tint color: " + overlaySettings.GuidelinesColorHexadecimal);
UIColor color = GetUIColorfromHex (overlaySettings.GuidelinesColorHexadecimal);
if (color != null)
overlayGraphicView.TintColor = color;
this.AddSubview (overlayGraphicView);
ScanButton scanButton = new ScanButton (
new CGRect ((frame.Width / 2) - (overlaySettings.ScanButtonWidth /2), frame.Height - overlaySettings.ScanButtonHeight - overlaySettings.ScanButtonMarginBottom ,
overlaySettings.ScanButtonWidth, overlaySettings.ScanButtonHeight), overlaySettings);
scanButton.TouchUpInside += delegate(object sender, EventArgs e) {
log("Scan Button TouchUpInside... " );
controller.TakePicture();
};
this.AddSubview (scanButton);
if (overlaySettings.DescriptionLabelText != null) {
UILabel label = new UILabel (new CGRect (overlaySettings.DescriptionLabelMarginLeftRight,
frame.Height - overlaySettings.DescriptionLabelHeight - overlaySettings.DescriptionLabelMarginBottom,
frame.Width - overlaySettings.DescriptionLabelMarginLeftRight * 2, overlaySettings.DescriptionLabelHeight)); // applying "DescriptionLabelMarginLeftRight" margins to width and x position
label.Text = overlaySettings.DescriptionLabelText;
color = GetUIColorfromHex (overlaySettings.DescriptionLabelColorHexadecimal);
if(color != null)
label.TextColor = color;
label.BaselineAdjustment = UIBaselineAdjustment.AlignCenters;
label.TextAlignment = UITextAlignment.Center; // centered aligned
label.LineBreakMode = UILineBreakMode.WordWrap; // wrap text by words
label.Lines = 2;
if (overlaySettings.DescriptionLabelFontFamilyName != null) {
UIFont labelFont = UIFont.FromName (overlaySettings.DescriptionLabelFontFamilyName, overlaySettings.DescriptionLabelFontSize);
if (labelFont != null) {
label.Font = labelFont;
} else {
log ("Font family [" + overlaySettings.DescriptionLabelFontFamilyName + "] for 'DescriptionLabelFontFamilyName' not found");
}
}
this.AddSubview (label);
}
UILabel cancelLabel = new UILabel (new CGRect ((frame.Width / 4) - (overlaySettings.CancelButtonWidth /2),
frame.Height - overlaySettings.CancelButtonHeight - overlaySettings.ScanButtonMarginBottom,
overlaySettings.CancelButtonWidth, overlaySettings.CancelButtonHeight));
cancelLabel.Text = overlaySettings.CancelButtonText;
color = GetUIColorfromHex (overlaySettings.CancelButtonColorHexadecimal);
if(color != null)
cancelLabel.TextColor = color;
cancelLabel.BaselineAdjustment = UIBaselineAdjustment.AlignCenters;
cancelLabel.TextAlignment = UITextAlignment.Center; // centered aligned
// list of available ios fonts: https://developer.xamarin.com/recipes/ios/standard_controls/fonts/enumerate_fonts/
if (overlaySettings.CancelButtonFontFamilyName != null) {
UIFont cancelLabelFont = UIFont.FromName (overlaySettings.CancelButtonFontFamilyName, overlaySettings.CancelButtonFontSize);
if (cancelLabelFont != null) {
cancelLabel.Font = cancelLabelFont;
} else {
log ("Font family [" + overlaySettings.CancelButtonFontFamilyName + "] for 'CancelButtonFontFamilyName' not found");
}
}
UITapGestureRecognizer cancelLabelTap = new UITapGestureRecognizer(() => {
log("Cancel Button TouchesEnded... " );
UIApplication.SharedApplication.InvokeOnMainThread (delegate {
SystemLogger.Log(SystemLogger.Module.PLATFORM, "Canceled picking image ");
IPhoneUtils.GetInstance().FireUnityJavascriptEvent("Appverse.Media.onFinishedPickingImage", null);
IPhoneServiceLocator.CurrentDelegate.MainUIViewController ().DismissModalViewController(true);
});
});
cancelLabel.UserInteractionEnabled = true;
cancelLabel.AddGestureRecognizer(cancelLabelTap);
this.AddSubview (cancelLabel);
}
public ScanButton (CGRect frame, CameraOptions options) : base (frame)
{
UIImage buttonImage = UIImage.FromBundle(@"scanbutton");
buttonImage = buttonImage.ImageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate); // convert image to template
this.SetImage (buttonImage, UIControlState.Normal);
this.SetImage (buttonImage, UIControlState.Highlighted);
UIImage buttonIconImage = UIImage.FromBundle(@"scaniconbutton");
buttonIconImage = buttonIconImage.ImageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate); // convert image to template
UIImageView buttonIconImageView = new UIImageView (buttonIconImage);
if(options != null) {
buttonIconImageView.Frame = new CGRect(
(frame.Width / 2) - (options.ScanButtonIconWidth /2),
(frame.Height / 2) - (options.ScanButtonIconHeight /2),
options.ScanButtonIconWidth ,
options.ScanButtonIconHeight); // we will place the icon in the middle of the button image
SystemLogger.Log (SystemLogger.Module.PLATFORM, "ScanButton : tint color to be used " + options.ScanButtonColorHexadecimal);
UIColor color = CameraOverlayView.GetUIColorfromHex (options.ScanButtonColorHexadecimal);
if (color != null)
this.TintColor = color;
SystemLogger.Log (SystemLogger.Module.PLATFORM, "ScanButton : tint color to be used for icon " + options.ScanButtonIconColorHexadecimal);
color = CameraOverlayView.GetUIColorfromHex (options.ScanButtonIconColorHexadecimal);
if (color != null)
buttonIconImageView.TintColor = color;
}
this.TouchUpInside += delegate {
if(options != null) {
SystemLogger.Log (SystemLogger.Module.PLATFORM, "ScanButton : TouchUpInside... changing color to: " + options.ScanButtonPressedColorHexadecimal);
UIColor color = CameraOverlayView.GetUIColorfromHex (options.ScanButtonPressedColorHexadecimal);
if(color != null)
this.TintColor = color;
}
};
this.AddSubview (buttonIconImageView); // adding inside image as a new subview
}
public abstract void TakeSnapshotWithOptions (CameraOptions options);
public abstract Task TakeSnapshotWithOptions(CameraOptions options);
/// <summary>
/// Launches the CameraView in photo mode
/// </summary>
/// <param name="options"></param>
/// <returns></returns>
public async Task ShowCameraView(CameraOptions options)
{
NavigateToCameraViewPage(new CameraViewInitObject { CameraOptions = null, AutoHandleQRCode = false, QRDetectionMode = false });
}
private async Task EnableCameraCustomOverlay(CameraOptions options)
{
await StatusBar.GetForCurrentView().HideAsync();
if (options == null || !options.UseCustomCameraOverlay) return;
_cameraOptions = options;
var GuideMarksBrush = FromHexColorToBrush(options.GuidelinesColorHexadecimal);
var screenWidth = Window.Current.Bounds.Width;
var screenHeight = Window.Current.Bounds.Height;
var WPBlackMargin = 25;
/*ULGuideMark.Stroke = URGuideMark.Stroke = BLGuideMark.Stroke = BRGuideMark.Stroke = GuideMarksBrush;
//UpperLeft Mark
ULGuideMark.Points = new PointCollection() { new Point(WPBlackMargin, (screenHeight / 10) + WPBlackMargin), new Point(WPBlackMargin, WPBlackMargin), new Point((screenWidth / 10) + WPBlackMargin, WPBlackMargin) };
//UpperRight Mark
URGuideMark.Points = new PointCollection() { new Point((screenWidth - screenWidth / 10) - WPBlackMargin, WPBlackMargin), new Point(screenWidth - WPBlackMargin, WPBlackMargin), new Point(screenWidth - WPBlackMargin, (screenHeight / 10) + WPBlackMargin) };
//BottomLeft Mark
BLGuideMark.Points = new PointCollection() { new Point(WPBlackMargin, (screenHeight - WPBlackMargin - (screenHeight / 10))), new Point(WPBlackMargin, screenHeight - WPBlackMargin), new Point((screenWidth / 10) + WPBlackMargin, screenHeight - WPBlackMargin) };
//BottomRight Mark
BRGuideMark.Points = new PointCollection() { new Point((screenWidth - WPBlackMargin - (screenWidth / 10)), screenHeight - WPBlackMargin), new Point(screenWidth - WPBlackMargin, screenHeight - WPBlackMargin), new Point(screenWidth - WPBlackMargin, (screenHeight - WPBlackMargin - (screenHeight / 10))) };
*/
if (options.Overlay != null)
{
BitmapImage imageBitmap;
try
{
imageBitmap = new BitmapImage(new Uri("ms-appx:///Assets/" + options.Overlay + ".png"));
}
catch (Exception ex)
{
imageBitmap = new BitmapImage(new Uri("ms-appx:///Assets/background.png"));
}
CameraPreviewOverlay.Source = imageBitmap;
}
CameraButtonsGrid.Margin = new Thickness(0, 0, 0, options.ScanButtonMarginBottom);
// CameraDescription Label
CameraDescriptionTextBlock.Text = options.DescriptionLabelText;
CameraDescriptionTextBlock.Foreground = FromHexColorToBrush(options.DescriptionLabelColorHexadecimal);
CameraDescriptionTextBlock.Height = options.DescriptionLabelHeight;
CameraDescriptionTextBlock.FontFamily = new FontFamily(options.DescriptionLabelFontFamilyName);
CameraDescriptionTextBlock.FontSize = options.DescriptionLabelFontSize;
CameraDescriptionTextBlock.Margin = new Thickness(options.DescriptionLabelMarginLeftRight, 0, options.DescriptionLabelMarginLeftRight, options.DescriptionLabelMarginBottom);
// CameraDescription Label Shadows...
CameraDescriptionTextBlockShadow1.Text =
CameraDescriptionTextBlockShadow1.Text =
CameraDescriptionTextBlockShadow1.Text = CameraDescriptionTextBlockShadow1.Text = CameraDescriptionTextBlock.Text;
CameraDescriptionTextBlockShadow1.Height =
CameraDescriptionTextBlockShadow1.Height =
CameraDescriptionTextBlockShadow1.Height = CameraDescriptionTextBlockShadow1.Height = CameraDescriptionTextBlock.Height;
CameraDescriptionTextBlockShadow1.FontFamily =
CameraDescriptionTextBlockShadow1.FontFamily =
CameraDescriptionTextBlockShadow1.FontFamily = CameraDescriptionTextBlockShadow1.FontFamily = CameraDescriptionTextBlock.FontFamily;
CameraDescriptionTextBlockShadow1.FontSize =
CameraDescriptionTextBlockShadow1.FontSize =
CameraDescriptionTextBlockShadow1.FontSize = CameraDescriptionTextBlockShadow1.FontSize = CameraDescriptionTextBlock.FontSize;
CameraDescriptionTextBlockShadow1.Margin = new Thickness(options.DescriptionLabelMarginLeftRight + 3, 0 + 3, options.DescriptionLabelMarginLeftRight - 3, options.DescriptionLabelMarginBottom - 3);
CameraDescriptionTextBlockShadow2.Margin = new Thickness(options.DescriptionLabelMarginLeftRight + 4, 0 + 4, options.DescriptionLabelMarginLeftRight - 4, options.DescriptionLabelMarginBottom - 4);
CameraDescriptionTextBlockShadow3.Margin = new Thickness(options.DescriptionLabelMarginLeftRight + 5, 0 + 5, options.DescriptionLabelMarginLeftRight - 5, options.DescriptionLabelMarginBottom - 5);
CameraDescriptionTextBlockShadow4.Margin = new Thickness(options.DescriptionLabelMarginLeftRight + 6, 0 + 6, options.DescriptionLabelMarginLeftRight - 6, options.DescriptionLabelMarginBottom - 6);
CameraDescriptionTextBlockShadow1.Visibility =
CameraDescriptionTextBlockShadow2.Visibility =
CameraDescriptionTextBlockShadow3.Visibility =
CameraDescriptionTextBlockShadow4.Visibility = Visibility.Visible;
//Shutter Button
ShutterButton.Height = options.ScanButtonHeight;
ShutterButton.Width = options.ScanButtonWidth;
ShutterButton.IsEnabled = true;
//CancelButton
CancelCameraButton.Content = options.CancelButtonText;
CancelCameraButton.Width = options.CancelButtonWidth;
CancelCameraButton.Height = options.CancelButtonHeight;
CancelCameraButton.FontSize = options.CancelButtonFontSize;
CancelCameraButton.Foreground = FromHexColorToBrush(options.CancelButtonColorHexadecimal);
CancelCameraButton.FontFamily = new FontFamily(options.CancelButtonFontFamilyName);
CancelCameraButton.IsEnabled = true;
CameraButtonsGrid.Visibility = Visibility.Visible;
}
/// <summary>
/// Shows the CameraView in QR Detection mode
/// </summary>
/// <param name="autoHandleQrCode"></param>
/// <param name="options"></param>
/// <returns></returns>
public async Task ShowDetectQrView(bool autoHandleQrCode, CameraOptions options)
{
NavigateToCameraViewPage(new CameraViewInitObject { CameraOptions = options, AutoHandleQRCode = autoHandleQrCode, QRDetectionMode = true });
}
public override MediaMetadata TakeSnapshot ()
{
cameraOptions = null; // rest values for camera options
SystemLogger.Log(SystemLogger.Module.PLATFORM, "Getting picture from camera");
using (var pool = new NSAutoreleasePool ()) {
var thread = new Thread (ShowCameraView);
thread.Start ();
};
//TODO change method signature to "void" return.
return null;
}
public override void TakeSnapshotWithOptions (CameraOptions options)
{
cameraOptions = options; // reset image scale factor
SystemLogger.Log(SystemLogger.Module.PLATFORM, "Getting picture from camera with specific camera options...");
using (var pool = new NSAutoreleasePool ()) {
var thread = new Thread (ShowCameraView);
thread.Start ();
};
}
public override async Task TakeSnapshotWithOptions(CameraOptions options)
{
AppverseBridge.Instance.RuntimeHandler.ShowCameraView(options);
}
public override void TakeSnapshotWithOptions(CameraOptions options)
{
throw new NotImplementedException();
}
