/**
* Set the options of the crop image view to the given values.
*/
public void setCropImageViewOptions(CropImageViewOptions options)
{
mCropImageView.SetScaleType(options.scaleType);
mCropImageView.SetCropShape(options.cropShape);
mCropImageView.SetGuidelines(options.guidelines);
mCropImageView.SetAspectRatio((int)options.aspectRatio.First, (int)options.aspectRatio.Second);
mCropImageView.SetFixedAspectRatio(options.fixAspectRatio);
mCropImageView.ShowCropOverlay = options.showCropOverlay;
mCropImageView.ShowProgressBar = options.showProgressBar;
mCropImageView.AutoZoomEnabled = options.autoZoomEnabled;
mCropImageView.MaxZoom = options.maxZoomLevel;
}
private CropImageView CreateImageView(CropView page)
{
var cropImageView = new CropImageView(Context)
{
LayoutParameters = new LayoutParams(LayoutParams.MatchParent, LayoutParams.MatchParent)
};
cropImageView.SetAspectRatio(1, 1);
cropImageView.SetImageBitmap(BitmapFactory.DecodeByteArray(page.Image, 0, page.Image.Length));
return(cropImageView);
}
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;
}
}
/**
* Set the options of the crop image view to the given values.
*/
public void SetCropImageViewOptions(CropImageViewOptions options)
{
_cropImageView.SetScaleType(options.ScaleType);
_cropImageView.SetCropShape(options.CropShape);
_cropImageView.SetGuidelines(options.Guidelines);
_cropImageView.SetAspectRatio(options.AspectRatio.AspectRatioX, options.AspectRatio.AspectRatioY);
_cropImageView.SetFixedAspectRatio(options.FixAspectRatio);
_cropImageView.SetMultiTouchEnabled(options.Multitouch);
_cropImageView.ShowCropOverlay = options.ShowCropOverlay;
_cropImageView.ShowProgressBar = options.ShowProgressBar;
_cropImageView.AutoZoomEnabled = options.AutoZoomEnabled;
_cropImageView.MaxZoom = options.MaxZoomLevel;
_cropImageView.FlippedHorizontally = options.FlipHorizontally;
_cropImageView.FlippedVertically = options.FlipVertically;
}
public void SetCropImageViewOptions(CropImageViewOptions options)
{
mCropImageView.SetScaleType(options.scaleType);
mCropImageView.SetCropShape(options.cropShape);
mCropImageView.SetGuidelines(options.guidelines);
mCropImageView.SetAspectRatio(options.aspectRatio.Item1, options.aspectRatio.Item2);
mCropImageView.SetFixedAspectRatio(options.fixAspectRatio);
mCropImageView.SetMultiTouchEnabled(options.multitouch);
mCropImageView.ShowCropOverlay = (options.showCropOverlay);
mCropImageView.ShowProgressBar = (options.showProgressBar);
mCropImageView.AutoZoomEnabled = (options.autoZoomEnabled);
mCropImageView.MaxZoom = (options.maxZoomLevel);
mCropImageView.FlippedHorizontally = (options.flipHorizontally);
mCropImageView.FlippedVertically = (options.flipVertically);
}
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();
}
}