Android合并两张bitmap为一张

最新推荐文章于 2023-10-08 16:47:16 发布

原创最新推荐文章于 2023-10-08 16:47:16 发布 · 6.1k 阅读

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本文介绍了一种将两张bitmap合并成一张的方法，包括背景图和前景图的处理。

 /**
	 * 合并两张bitmap为一张
	 * @param background
	 * @param foreground
	 * @return Bitmap
	 */
	public static Bitmap combineBitmap(Bitmap background, Bitmap foreground) {
		if (background == null) {
			return null;
		}
		int bgWidth = background.getWidth();
		int bgHeight = background.getHeight();
		int fgWidth = foreground.getWidth();
		int fgHeight = foreground.getHeight();
		Bitmap newmap = Bitmap
				.createBitmap(bgWidth, bgHeight, Config.ARGB_8888);
		Canvas canvas = new Canvas(newmap);
		canvas.drawBitmap(background, 0, 0, null);
		canvas.drawBitmap(foreground, (bgWidth - fgWidth) / 2,
				(bgHeight - fgHeight) / 2, null);
		canvas.save(Canvas.ALL_SAVE_FLAG);
		canvas.restore();
		return newmap;
	}