public override bool OnOptionsItemSelected(IMenuItem item)
{
switch (item.ItemId)
{
case Resource.Id.main_action_crop:
_cropImageView.GetCroppedImageAsync();
return(true);
case Resource.Id.main_action_rotate:
_cropImageView.RotateImage(90);
return(true);
default:
if (item.ItemId == Resource.Id.main_action_flip_horizontally)
{
_cropImageView.FlipImageHorizontally();
return(true);
}
else if (item.ItemId == Resource.Id.main_action_flip_vertically)
{
_cropImageView.FlipImageVertically();
return(true);
}
break;
}
return(base.OnOptionsItemSelected(item));
}
protected override void OnElementChanged(ElementChangedEventArgs <Page> e)
{
base.OnElementChanged(e);
var page = Element as CropView;
if (page != null)
{
var cropImageView = new CropImageView(Context);
cropImageView.LayoutParameters = new LayoutParams(LayoutParams.MatchParent, LayoutParams.MatchParent);
Bitmap bitmp = BitmapFactory.DecodeByteArray(page.Image, 0, page.Image.Length);
cropImageView.SetImageBitmap(bitmp);
var grid = new Grid();
grid.RowDefinitions.Add(new RowDefinition
{
Height = GridLength.Star
});
grid.RowDefinitions.Add(new RowDefinition
{
Height = GridLength.Auto
});
grid.RowDefinitions.Add(new RowDefinition
{
Height = GridLength.Auto
});
var stackLayout = new StackLayout {
Children = { cropImageView }
};
var rotateButton = new Button {
Text = "Rotate"
};
rotateButton.Clicked += (sender, ex) =>
{
cropImageView.RotateImage(90);
};
var finishButton = new Button {
Text = "Finished"
};
finishButton.Clicked += (sender, ex) =>
{
Bitmap cropped = cropImageView.CroppedImage;
using (MemoryStream memory = new MemoryStream())
{
cropped.Compress(Bitmap.CompressFormat.Png, 100, memory);
page.CroppedImage = memory.ToArray();
}
page.Navigation.PopModalAsync();
};
grid.Children.Add(stackLayout, 0, 0);
grid.Children.Add(rotateButton, 0, 1);
grid.Children.Add(finishButton, 0, 2);
page.Content = grid;
}
}
private static Button CreateRotateButton(CropImageView view, string buttonText)
{
var rotateButton = new Button
{
Text = buttonText,
Style = Application.Current.Resources["WarnButton"] as Style,
Margin = ButtonMargin
};
rotateButton.Clicked += (sender, ex) => view.RotateImage(90);
return(rotateButton);
}
public override bool OnOptionsItemSelected(IMenuItem item)
{
if (item.ItemId == Resource.Id.main_action_crop)
{
mCropImageView.GetCroppedImageAsync();
return(true);
}
else if (item.ItemId == Resource.Id.main_action_rotate)
{
mCropImageView.RotateImage(90);
return(true);
}
return(base.OnOptionsItemSelected(item));
}
protected override void OnElementChanged(ElementChangedEventArgs <Page> e)
{
base.OnElementChanged(e);
var page = Element as CropView;
if (page != null)
{
var cropImageView = new CropImageView(Context);
cropImageView.AutoZoomEnabled = false;
//cropImageView.SetMinCropResultSize(200, 200);
//cropImageView.SetMaxCropResultSize(300, 300);
cropImageView.SetAspectRatio(1, 1);
cropImageView.LayoutParameters = new LayoutParams(LayoutParams.MatchParent, LayoutParams.MatchParent);
Bitmap bitmp = BitmapFactory.DecodeByteArray(page.Image, 0, page.Image.Length);
cropImageView.SetImageBitmap(bitmp);
var stackLayout = new StackLayout {
Children = { cropImageView }
};
var rotateButton = new Xamarin.Forms.Button {
Text = "旋轉"
};
rotateButton.Clicked += (sender, ex) =>
{
cropImageView.RotateImage(90);
};
stackLayout.Children.Add(rotateButton);
var finishButton = new Xamarin.Forms.Button {
Text = "完成"
};
finishButton.Clicked += (sender, ex) =>
{
Bitmap cropped = cropImageView.CroppedImage;
using (MemoryStream memory = new MemoryStream())
{
cropped.Compress(Bitmap.CompressFormat.Png, 100, memory);
XFImgCrop.App.CroppedImage = memory.ToArray();
}
page.DidCrop = true;
page.Navigation.PopModalAsync();
};
stackLayout.Children.Add(finishButton);
page.Content = stackLayout;
}
}
protected override void OnElementChanged(ElementChangedEventArgs <Page> e)
{
base.OnElementChanged(e);
var page = Element as CropView;
if (page != null)
{
var cropImageView = new CropImageView(Context);
cropImageView.LayoutParameters = new LayoutParams(LayoutParams.MatchParent, LayoutParams.MatchParent);
Bitmap bitmp = BitmapFactory.DecodeByteArray(page.Image, 0, page.Image.Length);
cropImageView.SetImageBitmap(bitmp);
var scrollView = new ScrollView {
Content = cropImageView.ToView()
};
var stackLayout = new StackLayout {
Children = { scrollView }
};
var rotateButton = new Button {
Text = "Rotate"
};
rotateButton.Clicked += (sender, ex) =>
{
cropImageView.RotateImage(90);
};
stackLayout.Children.Add(rotateButton);
var finishButton = new Button {
Text = "Finished"
};
finishButton.Clicked += (sender, ex) =>
{
Bitmap cropped = cropImageView.CroppedImage;
using (MemoryStream memory = new MemoryStream())
{
cropped.Compress(Bitmap.CompressFormat.Png, 100, memory);
App.CroppedImage = memory.ToArray();
}
page.DidCrop = true;
page.Navigation.PopModalAsync();
};
stackLayout.Children.Add(finishButton);
page.Content = stackLayout;
}
}
protected override void OnCreate(Bundle savedInstanceState)
{
try
{
base.OnCreate(savedInstanceState);
RequestWindowFeature(WindowFeatures.NoTitle);
SetContentView(Resource.Layout.activity_main);
// Sets fonts for all
Typeface mFont = Typeface.CreateFromAsset(Assets, "Roboto-Thin.ttf");
var root = FindViewById <ViewGroup>(Resource.Id.mylayout);
SetFont(root, mFont);
// Initialize components of the app
cropImageView = FindViewById <CropImageView>(Resource.Id.CropImageView);
var showGuidelinesSpin = FindViewById <Spinner>(Resource.Id.showGuidelinesSpin);
// Set initial spinner value
showGuidelinesSpin.SetSelection(ON_TOUCH);
//Set AspectRatio fixed for circular selection
cropImageView.SetFixedAspectRatio(true);
// Sets initial aspect ratio to 10/10
cropImageView.SetAspectRatio(DEFAULT_ASPECT_RATIO_VALUES, DEFAULT_ASPECT_RATIO_VALUES);
//Sets the rotate button
var rotateButton = FindViewById <Button>(Resource.Id.Button_rotate);
rotateButton.Click += delegate { cropImageView.RotateImage(ROTATE_NINETY_DEGREES); };
// Sets up the Spinner
showGuidelinesSpin.ItemSelected += showGuidelinesSpin_ItemSelected;
showGuidelinesSpin.NothingSelected += showGuidelinesSpin_NothingSelected;
var cropButton = FindViewById <Button>(Resource.Id.Button_crop);
cropButton.Click += delegate
{
croppedImage = cropImageView.GetCroppedCircleImage();
var croppedImageView = FindViewById <ImageView>(Resource.Id.croppedImageView);
croppedImageView.SetImageBitmap(croppedImage);
};
}
catch (Exception ex)
{
ex.ToString();
}
}
protected override void OnElementChanged(ElementChangedEventArgs <Page> e)
{
base.OnElementChanged(e);
var page = Element as CropView;
if (page != null)
{
var cropImageView = new CropImageView(Context);
cropImageView.LayoutParameters = new LayoutParams(LayoutParams.WrapContent, LayoutParams.WrapContent);
Bitmap bitmp = BitmapFactory.DecodeByteArray(page.Image, 0, page.Image.Length);
cropImageView.SetImageBitmap(bitmp);
var scrollView = new ScrollView
{
Content = cropImageView.ToView(),
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand
};
var stackLayout = new StackLayout
{
Children = { scrollView },
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand
};
var rotateButton = new Button {
Text = Translator.getText("Rotate")
};
rotateButton.Clicked += (sender, ex) =>
{
cropImageView.RotateImage(90);
};
//stackLayout.Children.Add(rotateButton);
var finishButton = new Button {
Text = Translator.getText("Finish")
};
finishButton.Clicked += (sender, ex) =>
{
Bitmap cropped = cropImageView.CroppedImage;
using (MemoryStream memory = new MemoryStream())
{
UserDialogs.Instance.ShowLoading("Loading", MaskType.Black);
cropped.Compress(Bitmap.CompressFormat.Png, 60, memory);
App.CroppedImage = memory.ToArray();
UserDialogs.Instance.HideLoading();
}
page.DidCrop = true;
page.Navigation.PopModalAsync();
};
//stackLayout.Children.Add(finishButton);
Grid grid = new Grid
{
VerticalOptions = LayoutOptions.Fill,
Padding = 5,
RowSpacing = 2,
};
grid.ColumnDefinitions.Add(new ColumnDefinition {
Width = GridLength.Star
});
grid.RowDefinitions.Add(new RowDefinition {
Height = GridLength.Star
});
grid.RowDefinitions.Add(new RowDefinition {
Height = 43
});
grid.RowDefinitions.Add(new RowDefinition {
Height = 43
});
grid.Children.Add(stackLayout, 0, 0);
grid.Children.Add(rotateButton, 0, 1);
grid.Children.Add(finishButton, 0, 2);
page.Content = grid;
}
}
protected override void OnElementChanged(ElementChangedEventArgs <Page> e)
{
base.OnElementChanged(e);
var page = Element as CropView;
if (page != null)
{
var cropImageView = new CropImageView(Context);
cropImageView.LayoutParameters = new LayoutParams(LayoutParams.MatchParent, LayoutParams.MatchParent);
BitmapFactory.Options options = new BitmapFactory.Options();
options.InSampleSize = 2;
Bitmap bitmp = BitmapFactory.DecodeByteArray(page.Image, 0, page.Image.Length, options);
cropImageView.SetImageBitmap(bitmp);
cropImageView.SetMaxCropResultSize(Convert.ToInt32(DeviceDisplay.MainDisplayInfo.Width), Convert.ToInt32(DeviceDisplay.MainDisplayInfo.Height));
cropImageView.SetMinCropResultSize(Convert.ToInt32(DeviceDisplay.MainDisplayInfo.Width) / 4, Convert.ToInt32(DeviceDisplay.MainDisplayInfo.Height) / 4);
cropImageView.SetMinimumHeight(Convert.ToInt32(DeviceDisplay.MainDisplayInfo.Height) / 2);
cropImageView.SetMinimumWidth(Convert.ToInt32(DeviceDisplay.MainDisplayInfo.Width) / 2);
var scrollView = new ScrollView {
Content = cropImageView.ToView()
};
var stackLayout = new StackLayout {
Children = { scrollView }
};
var rotateButton = new Button {
Text = "Rotate"
};
rotateButton.CornerRadius = 50;
rotateButton.Clicked += (sender, ex) =>
{
cropImageView.RotateImage(90);
};
stackLayout.Children.Add(rotateButton);
var finishButton = new Button {
Text = "Finished"
};
finishButton.CornerRadius = 50;
Bitmap decoded = null;
finishButton.Clicked += (sender, ex) =>
{
finishButton.IsEnabled = false;
rotateButton.IsVisible = false;
finishButton.Text = "Please Wait...";
Bitmap cropped = cropImageView.CroppedImage;
using (MemoryStream memory = new MemoryStream())
{
cropped.Compress(Bitmap.CompressFormat.Png, 100, memory);
memory.Position = 0;
decoded = BitmapFactory.DecodeStream(memory);
memory.Flush();
}
WallpaperSet wallpaperSet = new WallpaperSet();
bool val = wallpaperSet.GetWallpaperBysystem(decoded);
page.DidCrop = true;
page.Navigation.PopModalAsync();
};
stackLayout.Children.Add(finishButton);
page.Content = stackLayout;
}
}
protected override void OnElementChanged(ElementChangedEventArgs <Page> e)
{
base.OnElementChanged(e);
var page = Element as CropView;
if (page != null)
{
#region Crop Image View.
var cropImageView = new CropImageView(Context);
cropImageView.LayoutParameters = new LayoutParams(LayoutParams.MatchParent, LayoutParams.MatchParent);
Bitmap bitmp = BitmapFactory.DecodeByteArray(page.Image, 0, page.Image.Length);
cropImageView.SetImageBitmap(bitmp);
cropImageView.RotateImage(90);
var imageContent = new ContentView
{
HeightRequest = 500,
WidthRequest = 600,
Content = cropImageView.ToView(),
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand
};
//var scrollView = new ScrollView { Content = cropImageView.ToView() };
var stackLayout = new StackLayout {
Children = { imageContent }, Spacing = 10
};
#endregion
#region Title & Sub Title.
Label labelTitle = new Label()
{
Text = "Crop Image",
FontSize = 25,
HorizontalOptions = LayoutOptions.CenterAndExpand,
TextColor = Xamarin.Forms.Color.White
};
string text = Helper.Helper.SelectedIdentificatorText;
if (text == "ID")
{
text = "ID Card";
}
Label labelSubTitle = new Label()
{
Text = $"Use the marker to mark the area around your card. So that we only see your {text}.",
FontSize = 20,
HorizontalTextAlignment = Xamarin.Forms.TextAlignment.Center,
HorizontalOptions = LayoutOptions.CenterAndExpand,
TextColor = Xamarin.Forms.Color.White
};
var titleSubTitleLayout = new StackLayout()
{
Children = { labelTitle, labelSubTitle },
Spacing = 10,
VerticalOptions = LayoutOptions.EndAndExpand,
Padding = new Thickness(10, 10, 10, 20)
};
stackLayout.Children.Add(titleSubTitleLayout);
#endregion
#region Bottom buttons bar.
var stackLayoutButtons = new StackLayout
{
Orientation = StackOrientation.Horizontal,
HeightRequest = 50,
Spacing = 40, Margin = new Thickness(0, 0, 0, 20),
VerticalOptions = LayoutOptions.EndAndExpand,
HorizontalOptions = LayoutOptions.CenterAndExpand
};
var closeButton = new ImageButton
{
Source = "iconClose.png",
Padding = new Thickness(15),
HorizontalOptions = LayoutOptions.CenterAndExpand,
BackgroundColor = Xamarin.Forms.Color.Transparent
};
closeButton.Clicked += (sender, ex) =>
{
page.Navigation.PopModalAsync();
};
stackLayoutButtons.Children.Add(closeButton);
var rotateButton = new ImageButton
{
Source = "iconRotateToRight.png",
Padding = new Thickness(12),
HorizontalOptions = LayoutOptions.CenterAndExpand,
BackgroundColor = Xamarin.Forms.Color.Transparent
};
rotateButton.Clicked += (sender, ex) =>
{
cropImageView.RotateImage(90);
};
stackLayoutButtons.Children.Add(rotateButton);
var finishButton = new ImageButton
{
Source = "iconChecked.png",
Padding = new Thickness(12),
HorizontalOptions = LayoutOptions.CenterAndExpand,
BackgroundColor = Xamarin.Forms.Color.Transparent
};
finishButton.Clicked += (sender, ex) =>
{
Bitmap cropped = cropImageView.CroppedImage;
using (MemoryStream memory = new MemoryStream())
{
cropped.Compress(Bitmap.CompressFormat.Png, 100, memory);
App.CroppedImage = memory.ToArray();
}
page.DidCrop = true;
page.Navigation.PopModalAsync();
};
stackLayoutButtons.Children.Add(finishButton);
stackLayout.Children.Add(stackLayoutButtons);
#endregion
page.Content = stackLayout;
}
}