[컴][안드로이드] Gradient 사용 예제

GradientDrawable

	canvas.save();
	canvas.translate(contentLeft, 0);

	/**
		GradientDrawable.Orientation  BL_TR  draw the gradient from the bottom-left to the top-right   
		  BOTTOM_TOP  draw the gradient from the bottom to the top   
		  BR_TL  draw the gradient from the bottom-right to the top-left   
		  LEFT_RIGHT  draw the gradient from the left to the right   
		  RIGHT_LEFT  draw the gradient from the right to the left   
		  TL_BR  draw the gradient from the top-left to the bottom-right   
		  TOP_BOTTOM  draw the gradient from the top to the bottom   
		  TR_BL  draw the gradient from the top-right to the bottom-left   
	 */
	int screenHeight = this.getHeight();
	Rect mRect = new Rect(-5, 0, 0, screenHeight);
	
	
	GradientDrawable mShadowDrawable = new GradientDrawable(GradientDrawable.Orientation.LEFT_RIGHT,
									 new int[] { 0x00000000, 0xFF000000 });
	mShadowDrawable.setShape(GradientDrawable.RECTANGLE);
	mShadowDrawable.setGradientType(GradientDrawable.LINEAR_GRADIENT);
	
	mShadowDrawable.setBounds(mRect);
	
	mShadowDrawable.draw(canvas);
	canvas.restore();

 

use gradient xml

	canvas.save();
	canvas.translate(contentLeft, 0);

	/**
		GradientDrawable.Orientation  BL_TR  draw the gradient from the bottom-left to the top-right   
		  BOTTOM_TOP  draw the gradient from the bottom to the top   
		  BR_TL  draw the gradient from the bottom-right to the top-left   
		  LEFT_RIGHT  draw the gradient from the left to the right   
		  RIGHT_LEFT  draw the gradient from the right to the left   
		  TL_BR  draw the gradient from the top-left to the bottom-right   
		  TOP_BOTTOM  draw the gradient from the top to the bottom   
		  TR_BL  draw the gradient from the top-right to the bottom-left   
	 */
	int screenHeight = this.getHeight();
	Rect mRect = new Rect(-5, 0, 0, screenHeight);
	
	GradientDrawable mShadowDrawable = (GradientDrawable) getResources().getDrawable(R.drawable.gradient_shadow);
	mShadowDrawable.setBounds(mRect); // is it necessary?
	
	mShadowDrawable.draw(canvas);
	canvas.restore();