如何解决如何使用SKSurface.Snapshot制作表面快照?
以下代码破坏了代码,当我单击按钮时,我的应用程序关闭了。
我试图在方法内部拍摄快照,但它使应用程序崩溃。
SKSurface CenterSurface;
void canvasView_BubbleCenterCircle(object sender,SKPaintSurfaceEventArgs e)
{
var surface = e.Surface;
var canvas = surface.Canvas;
canvas.Clear(SKColors.Black);
var width = e.Info.Width;
var height = e.Info.Height;
// Move the origin to the center
canvas.Translate(width / 2,height / 2);
canvas.DrawLine(-220,220,whitePaint);
canvas.DrawLine(0,-220,whitePaint);
// Draw base graphics
canvas.DrawCircle(0,180f,whitePaint);
canvas.DrawCircle(x,y,50f,whitePaint);
canvas.DrawLine(x,x,y + 35,y - 35,x + 35,whitePaint);
canvas.DrawLine(x - 35,whitePaint);
CenterSurface = surface;
}
private async void cameraButton_Clicked(object sender,EventArgs e)
{
FinalCenterImage = CenterSurface.Snapshot();
//...
}
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