skiasharp/samples/Basic/Android/SkiaSharpSample/MainActivity.cs

59 lines
1.2 KiB
C#

using Android.App;
using Android.OS;
using AndroidX.AppCompat.App;
using SkiaSharp;
using SkiaSharp.Views.Android;
namespace SkiaSharpSample
{
[Activity(MainLauncher = true)]
public class MainActivity : AppCompatActivity
{
private SKCanvasView skiaView;
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.main);
skiaView = FindViewById<SKCanvasView>(Resource.Id.skiaView);
}
protected override void OnResume()
{
base.OnResume();
skiaView.PaintSurface += OnPaintSurface;
}
protected override void OnPause()
{
skiaView.PaintSurface -= OnPaintSurface;
base.OnPause();
}
private void OnPaintSurface(object sender, SKPaintSurfaceEventArgs e)
{
// the the canvas and properties
var canvas = e.Surface.Canvas;
// make sure the canvas is blank
canvas.Clear(SKColors.White);
// draw some text
var paint = new SKPaint
{
Color = SKColors.Black,
IsAntialias = true,
Style = SKPaintStyle.Fill,
TextAlign = SKTextAlign.Center,
TextSize = 24
};
var coord = new SKPoint(e.Info.Width / 2, (e.Info.Height + paint.TextSize) / 2);
canvas.DrawText("SkiaSharp", coord, paint);
}
}
}