Code example for Matrix

Methods: setPolyToPoly

0
		} 
		 
		float[] dst = {0,centerY,mscreenX,centerY,currentX,currentY,mscreenX-currentX,currentY};
		float[] src = {0,centerY,mscreenX,centerY,61,initY,mscreenX-61,initY};
			 
		UpMatrix.setPolyToPoly(src, 0, dst, 0, src.length>>1);
			 
		//����͸���� 
		//int currentAlpha = (int) ((960 - currentY)/2); 
		paintGray.setAlpha(currentAlpha);
		gradientdrawable.setAlpha(255 - currentAlpha);
			 
		postInvalidate();	
		 
	} 
	 
	 
	public void updateView(Canvas canvas){
		if(UpOrDown == 1 || UpOrDown ==0){
			canvas.save();
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