private void ContentPage_Appearing(object sender, EventArgs e)
{
SKBitmap bitmap = SKBitmap.Decode(getStream);
photoCropper = new PhotoCropperCanvasView(bitmap);
canvasViewHost.Children.Add(photoCropper);
}
public BitmapResizeView()
{
InitializeComponent();
var bitmap = BitmapExtensions.LoadBitmapResource(typeof(BitmapRotateView), "SkiaSharp_Samples.Resources.Banana.jpg");
photoCropper = new PhotoCropperCanvasView(bitmap);
canvasViewHost.Children.Add(photoCropper);
}
private async void BtnSave_Clicked(object sender, EventArgs e)
{
croppedBitmap = photoCropper.CroppedBitmap;
SKCanvasView canvasView = new SKCanvasView();
canvasView.PaintSurface += OnCanvasViewPaintSurface;
PhotoCropperCanvasView Cropper = new PhotoCropperCanvasView(croppedBitmap);
canvasViewHost.Children.Add(Cropper);
if (this.btnSave.Text == "使用")
{
using (MemoryStream memStream = new MemoryStream())
using (SKManagedWStream wstream = new SKManagedWStream(memStream))
{
croppedBitmap.Encode(wstream, SKEncodedImageFormat.Jpeg, 10);
byte[] data = memStream.ToArray();
if (data == null)
{
await DisplayAlert("提示", "Encode returned null", "确认");
}
else if (data.Length == 0)
{
await DisplayAlert("提示", "Encode returned empty array", "确认");
}
else
{
#region
//await DisplayAlert("data提示", data.Length.ToString(), "确认");
string url = $"/{Version_Helper.versionNumber}/user_/update-croppedimgage?Account={OptionText_Helper.ReadAllText("Account")}";
var content = await WebApiService_Helper.PostUpLoadImageHelperAsync(url, OptionImages_Helper.CopyImageGetStream(data));
if (content != "no")
{
OptionText_Helper.WriteText("Picture", content);
await DisplayAlert("成功提示", "图片已经修改成功！", "确认");
await Navigation.PopAsync();
}
else
{
await DisplayAlert("错误提示", content, "确认");
}
#endregion
}
}
}
this.btnSave.Text = "使用";
}
public PhotoCroppingPage(MediaFile image)
{
InitializeComponent();
this.image = image;
SKBitmap bitmap = SKBitmap.Decode(image.GetStream());
// SKBitmap bitmap = BitmapExtensions.LoadBitmapResource(GetType(), "Is This Vegan.SharedMedia.test_ingredient_list_full.jpg");
photoCropper = new PhotoCropperCanvasView(bitmap);
canvasViewHost.Children.Add(photoCropper);
}
