drawBitmap() public méthode

public drawBitmap ( android arg0, android arg1, android arg2 ) : void
arg0 android
arg1 android
arg2 android
Résultat void
Exemple #1
0
		protected override void onDraw (Canvas canvas)
		{
			canvas.drawColor (Color.WHITE);

			Paint p = new Paint ();
			float y = 10;

			p.setColor (Color.RED);
			canvas.drawBitmap (mBitmap, 10, y, p);
			y += mBitmap.getHeight () + 10;
			canvas.drawBitmap (mBitmap2, 10, y, p);
			y += mBitmap2.getHeight () + 10;
			p.setShader (mShader);
			canvas.drawBitmap (mBitmap3, 10, y, p);
		}
		protected override void onDraw (Canvas canvas)
		{
			Paint paint = mPaint;
			float x = 20;
			float y = 20;

			canvas.drawColor (Color.WHITE);

			paint.setColorFilter (null);
			canvas.drawBitmap (mBitmap, x, y, paint);

			ColorMatrix cm = new ColorMatrix ();

			mAngle += 2;
			if (mAngle > 180) {
				mAngle = 0;
			}

			//convert our animated angle [-180...180] to a contrast value of [-1..1]
			float contrast = mAngle / 180.0f;

			setContrast (cm, contrast);
			paint.setColorFilter (new ColorMatrixColorFilter (cm));
			canvas.drawBitmap (mBitmap, x + mBitmap.getWidth () + 10, y, paint);

			setContrastScaleOnly (cm, contrast);
			paint.setColorFilter (new ColorMatrixColorFilter (cm));
			canvas.drawBitmap (mBitmap, x, y + mBitmap.getHeight () + 10, paint);

			setContrastTranslateOnly (cm, contrast);
			paint.setColorFilter (new ColorMatrixColorFilter (cm));
			canvas.drawBitmap (mBitmap, x, y + 2 * (mBitmap.getHeight () + 10), paint);
		}
Exemple #3
0
		protected override void onDraw (Canvas canvas)
		{
			canvas.drawColor (Color.WHITE);

			Paint labelP = new Paint (Paint.ANTI_ALIAS_FLAG);
			labelP.setTextAlign (Paint.Align.CENTER);

			Paint paint = new Paint ();
			paint.setFilterBitmap (false);

			canvas.translate (15, 35);

			int x = 0;
			int y = 0;
			for (int i = 0; i < sModes.Length; i++) {
				// draw the border
				paint.setStyle (Paint.Style.STROKE);
				paint.setShader (null);
				canvas.drawRect (x - 0.5f, y - 0.5f,
						x + W + 0.5f, y + H + 0.5f, paint);

				// draw the checker-board pattern
				paint.setStyle (Paint.Style.FILL);
				paint.setShader (mBG);
				canvas.drawRect (x, y, x + W, y + H, paint);

				// draw the src/dst example into our offscreen bitmap
				int sc = canvas.saveLayer (x, y, x + W, y + H, null,
							  Canvas.MATRIX_SAVE_FLAG |
							  Canvas.CLIP_SAVE_FLAG |
							  Canvas.HAS_ALPHA_LAYER_SAVE_FLAG |
							  Canvas.FULL_COLOR_LAYER_SAVE_FLAG |
							  Canvas.CLIP_TO_LAYER_SAVE_FLAG);
				canvas.translate (x, y);
				canvas.drawBitmap (mDstB, 0, 0, paint);
				paint.setXfermode (sModes [i]);
				canvas.drawBitmap (mSrcB, 0, 0, paint);
				paint.setXfermode (null);
				canvas.restoreToCount (sc);

				// draw the label
				canvas.drawText (sLabels [i],
						x + W / 2, y - labelP.getTextSize () / 2, labelP);

				x += W + 10;

				// wrap around when we've drawn enough for one row
				if ((i % ROW_MAX) == ROW_MAX - 1) {
					x = 0;
					y += H + 30;
				}
			}
		}