本文整理汇总了C#中Android.DrawBitmap方法的典型用法代码示例。如果您正苦于以下问题：C# Android.DrawBitmap方法的具体用法？C# Android.DrawBitmap怎么用？C# Android.DrawBitmap使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Android的用法示例。
在下文中一共展示了Android.DrawBitmap方法的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: OnDraw
protected override void OnDraw(Android.Graphics.Canvas canvas)
{
base.OnDraw (canvas);
if (bitmap == null || bitmap.Width != canvas.Width || bitmap.Height != canvas.Height) {
if (bitmap != null)
bitmap.Dispose ();
bitmap = Bitmap.CreateBitmap (canvas.Width, canvas.Height, Bitmap.Config.Argb8888);
}
try
{
using (var surface = SKSurface.Create (canvas.Width, canvas.Height, SKImageInfo.PlatformColorType, SKAlphaType.Premul, bitmap.LockPixels (), canvas.Width * 4)) {
var skcanvas = surface.Canvas;
skcanvas.Scale (((float)canvas.Width)/(float)skiaView.Width, ((float)canvas.Height)/(float)skiaView.Height);
iskiaView.SendDraw (skcanvas);
}
}
finally {
bitmap.UnlockPixels ();
}
canvas.DrawBitmap (bitmap, 0, 0, null);
}示例2: OnDraw
protected override void OnDraw(Android.Graphics.Canvas canvas)
{
base.OnDraw(canvas);
//if this is the 1st call of draw
if (init)
{
original = BitmapFactory.DecodeResource(Resources, Resource.Drawable.pitchbg0);
bm = Bitmap.CreateBitmap(original, 0, 0, original.Width, original.Height, n, true);
init = false;
}//end if
yDiff = Receive_Singleton.Instance.Current_ses.Sensors[Settings_Singleton.Instance.G0Y].Values[Receive_Singleton.Instance.Current_ses.Sensors[Settings_Singleton.Instance.G0Y].Values.Length - 1].Value / divider;
m.SetTranslate(xOffCenter, yOffCenter + yDiff);
canvas.DrawBitmap(bm, m, null);
Invalidate();
}示例3: OnDraw
protected override void OnDraw(Android.Graphics.Canvas canvas)
{
base.OnDraw(canvas);
lock (this)
{
Image<Bgr, byte> image = _bgrBuffers.GetBuffer(0);
if (image != null && !_imageSize.IsEmpty && canvas != null)
{
Stopwatch w = Stopwatch.StartNew();
if ((_bmpImage != null) && (!_imageSize.Equals(_bmpImage.Size)))
{
_bmpImage.Dispose();
_bmpImage = null;
_bmp.Dispose();
_bmp = null;
}
if (_bmpImage == null)
{
_bmp = Android.Graphics.Bitmap.CreateBitmap(_imageSize.Width, _imageSize.Height, Android.Graphics.Bitmap.Config.Rgb565);
_bmpImage = new BitmapRgb565Image(_bmp);
}
_bmpImage.ConvertFrom(image);
canvas.DrawBitmap(_bmp, 0, 0, _paint);
w.Stop();
_watch.Stop();
#if DEBUG
canvas.DrawText(String.Format("{0:F2} FPS; {1}x{2}; Render Time: {3} ms",
1.0 / _watch.ElapsedMilliseconds * 1000,
_imageSize.Width,
_imageSize.Height,
w.ElapsedMilliseconds), 20, 20, _paint);
#endif
_watch.Reset();
_watch.Start();
}
}
}示例4: OnDraw
protected override void OnDraw(Android.Graphics.Canvas canvas)
{
// On draw or redraw, we should
// get our cached bitmap
Bitmap gameTargetBitmap = GetBitmapFromMemCache("target");
// For multiple dragging object, but for
// now we only have one. :)
foreach (DragObject dObject in dragObjects) {
#region Draw transparent target area
paint.SetStyle(Paint.Style.Fill);
// Set tranparent paint
// Change this to another ARGB color to
// see the target area
paint.SetARGB(128, 255, 255, 255);
// Coords for target drop area
const int x1 = 767;
const int x2 = 990;
const int y1 = 204;
const int y2 = 560;
// Draw target area
canvas.DrawRect(x1, y1, x2, y2, paint);
// Set target drop area for our check if the
// dragged object is within the drop area bounds
this.targetDropX1 = x1;
this.targetDropX2 = x2;
this.targetDropY1 = y1;
this.targetDropY2 = y2;
// Offset the bitmap overlay just a
// bit to look nice
const int xOffset = 10;
const int yOffset = 10;
// Draw target bitmap overlay
canvas.DrawBitmap(gameTargetBitmap, targetDropX1 + xOffset, targetDropY1 + yOffset, null);
#endregion Draw transparent target area with a image overlay
// Draw object bitmap to drag
canvas.DrawBitmap(dObject.GetBitmap(), dObject.GetX(), dObject.GetY(), null);
}
}示例5: OnDraw
protected override void OnDraw(Android.Graphics.Canvas canvas)
{
if (mixerValue == null) // don't do anything if we're not connected to a mixervalue
return;
if (bmp == null) {
bmp = BitmapFactory.DecodeResource (Resources, Resource.Drawable.Fader_Knob);
Bitmap scaled = Bitmap.CreateScaledBitmap (bmp, 25, 55, true);
bmp.Recycle();
bmp = scaled;
}
int margin = 60;
float radius = 4;
int center = (Width / 2) + 5;
int minY1 = margin - (bmp.Height / 2);
int maxY1 = Height - margin - (bmp.Height / 2);
rangeY = maxY1 - minY1;
float factor = (float)mixerValue.GetValue() / (float)maxValue;
bitmapX1 = center - bmp.Width / 2;
bitmapY1 = maxY1 - (int)(factor * (float)rangeY);
base.OnDraw (canvas);
var paint = new Paint ();
paint.Color = Color.White;
paint.TextAlign = Paint.Align.Center;
paint.TextSize = (float)12.0;
paint.SetTypeface(Typeface.DefaultBold);
if (channel_name != null)
canvas.DrawText (channel_name, center - 5, 14, paint); // align with pan control
int levelX1 = center - (bmp.Width / 2) - 2;
int levelX2 = center + (bmp.Width / 2);
paint.TextSize = (float)10.0;
paint.TextAlign = Paint.Align.Right;
foreach (var level in faderLevels) {
float factorLevel = (float)level.Key / (float)maxValue;
int levelY = maxY1 - (int)(factorLevel * (float)rangeY) + (bmp.Height / 2);
canvas.DrawRect (levelX1, levelY - 1, levelX2, levelY, paint);
canvas.DrawText (level.Value, levelX1 - 4, levelY + 3, paint);
}
paint.Color = Color.DarkGray;
RectF rect = new RectF (center - 2, margin, center + 2, Height - margin);
canvas.DrawRoundRect(rect, radius, radius, paint);
paint.Color = Color.Black;
rect = new RectF (center - 1, margin + 1, center + 1, Height - margin - 1);
canvas.DrawRoundRect(rect, radius, radius, paint);
bitmapX2 = bitmapX1 + bmp.Width;
bitmapY2 = bitmapY1 + bmp.Height;
if (isActive) {
paint.Alpha = 255;
} else {
paint.Alpha = 180;
}
canvas.DrawBitmap (bmp, bitmapX1, bitmapY1, paint);
//bmp.Recycle ();
}示例6: Draw
public override void Draw(Android.Graphics.Canvas canvas)
{
if (Control == null) return;
Control.CreateGraphicBuffers();
var ctime = System.Environment.TickCount;
Fleux.UIElements.Canvas.drawtime = 0;
if (Control.offUpdated)
{
lock(Control.offBmp)
{
Control.Draw(new PaintEventArgs(Control.offGr, new Rectangle(0,0, Control.offBmp.Width, Control.offBmp.Height)));
updcnt++;
}
}
Control.offUpdated = false;
lock(Control.offBmp)
{
if (Fleux.Core.FleuxApplication.HorizontalMirror)
{
canvas.Save();
canvas.Scale (-1, 1);
canvas.Translate (-(float)Control.drect.Width(), 0);
}else if (Fleux.Core.FleuxApplication.VerticalMirror)
{
canvas.Save();
canvas.Scale (1, -1);
canvas.Translate (0, -(float)Control.drect.Height());
}
Control.offGr.Flush();
canvas.DrawBitmap(Control.offBmp.ABitmap, Control.srect, Control.drect, paint);
updcntflush++;
}
if (PerfData)
{
ctime = System.Environment.TickCount - ctime;
{
totime += ctime;
}
var cavg = totime / (updcnt+1);
var cpaint = new Android.Graphics.Paint();
cpaint.Color = new Android.Graphics.Color(0xA0, 0xFF, 0xFF, 0xFF);
cpaint.SetStyle(Android.Graphics.Paint.Style.Fill);
canvas.DrawRect(0,0, 250, 20, cpaint);
canvas.DrawText(""+updcnt+":"+updcntflush+":"+updcntinval+" ctime: "+ctime+"cavg:"+cavg+" canv: "+Fleux.UIElements.Canvas.drawtime, 0,20, spaint);
cpaint.Dispose();
if (updcnt > 100)
{
totime = 0;
updcnt = 0;
}
}
}示例7: Draw
public override void Draw(Android.Graphics.Canvas canvas)
{
canvas.DrawCircle (mainCenter, mainCenter + 2, radius + radiusBorder, shadowPaint);
canvas.DrawCircle (mainCenter, mainCenter, radius + radiusBorder, darkerBackPaint);
canvas.DrawCircle (mainCenter, mainCenter, radius, backPaint);
canvas.DrawBitmap (icon, mainCenter - icon.Width / 2, mainCenter - icon.Height / 2, imgPaint);
if (Count != 0) {
int bubbleCenter = center - removeRadius - bubbleOffset;
greenPaint.Alpha = redPaint.Alpha = currentBubbleTransparency;
removePaint.Alpha = 255 - currentBubbleTransparency;
canvas.DrawCircle (bubbleCenter, bubbleCenter, removeRadius, removePaint);
canvas.DrawCircle (bubbleCenter, bubbleCenter, innerRadius, Count < 0 ? redPaint : greenPaint);
var c = Math.Abs (Count).ToString ();
var textBounds = new Rect ();
removePaint.GetTextBounds (c, 0, c.Length, textBounds);
canvas.DrawText (c, bubbleCenter, bubbleCenter + textBounds.Height () / 2, removePaint);
}
DrawingCacheEnabled = true;
}示例8: Draw
public override void Draw(Android.Graphics.Canvas canvas)
{
if (Control == null) return;
Control.CreateGraphicBuffers();
if (origMatrix == null)
{
origMatrix = new Android.Graphics.Matrix();
origMatrix.Set (canvas.Matrix);
}
if (hMatrix == null)
{
hMatrix = new Android.Graphics.Matrix();
hMatrix.Set(origMatrix);
hMatrix.PostTranslate(-Control.offBmp.Width, 0);
hMatrix.PostScale(-1, 1);
}
if (vMatrix == null)
{
vMatrix = new Android.Graphics.Matrix();
vMatrix.Set(origMatrix);
vMatrix.PostTranslate(0, -Control.offBmp.Height);
vMatrix.PostScale(1, -1);
}
var ctime = System.Environment.TickCount;
var realupdate = false;
Fleux.UIElements.Canvas.drawtime = 0;
/**/
if (Control.offNeedExtraDraw && Control.offUpdated)
lock(Control.offBmp){
Control.offNeedExtraDraw = false;
Control.offUpdated = false;
Control.offBmpDraw = true;
Control.Draw(new PaintEventArgs(Control.offGr, new Rectangle(0,0, Control.offBmp.Width, Control.offBmp.Height)));
Control.offBmpDraw = false;
updcnt++;
realupdate = true;
}
//*/
lock(Control.offBmp)
{
if (Fleux.Core.FleuxApplication.HorizontalMirror)
{
canvas.Matrix = hMatrix;
}else if (Fleux.Core.FleuxApplication.VerticalMirror)
{
canvas.Matrix = vMatrix;
}else
canvas.Matrix = origMatrix;
// Thats for FastGraphics.cs
Control.offGr.Flush();
canvas.DrawBitmap(Control.offBmp.ABitmap, 0,0, paint);
Control.offUpdated = false;
updcntflush++;
}
if (PerfData)
{
ctime = System.Environment.TickCount - ctime;
//if (realupdate)
{
totime += ctime;
}
var cavg = totime / (updcnt+1);
var cpaint = new Android.Graphics.Paint();
cpaint.Color = new Android.Graphics.Color(0xA0, 0xFF, 0xFF, 0xFF);
cpaint.SetStyle(Android.Graphics.Paint.Style.Fill);
canvas.DrawRect(0,0, 250, 20, cpaint);
canvas.DrawText(""+updcnt+":"+updcntflush+":"+updcntinval+" ctime: "+ctime+"cavg:"+cavg+" canv: "+Fleux.UIElements.Canvas.drawtime, 0,20, spaint);
cpaint.Dispose();
if (updcnt > 100)
{
totime = 0;
updcnt = 0;
}
}
}示例9: OnDraw
protected override void OnDraw (Android.Graphics.Canvas canvas)
{
canvas.DrawBitmap (canvasBitmap, 0, 0, canvasPaint);
canvas.DrawPath (drawPath, drawPaint);
}