如何在Android中编程创建双曝光效果？

// 加载底图和曝光图
Bitmap baseImage = BitmapFactory.decodeResource(getResources(), R.drawable.base_image);
Bitmap exposureImage = BitmapFactory.decodeResource(getResources(), R.drawable.exposure_image);

// 创建合成图像
Bitmap finalImage = Bitmap.createBitmap(baseImage.getWidth(), baseImage.getHeight(), Bitmap.Config.ARGB_8888);

// 绘制底图到合成图像
Canvas canvas = new Canvas(finalImage);
canvas.drawBitmap(baseImage, 0, 0, null);

// 设置BlendMode为Multiply
Paint paint = new Paint();
paint.setBlendMode(BlendMode.MULTIPLY);

// 绘制曝光图到合成图像
canvas.drawBitmap(exposureImage, 0, 0, paint);

// 将合成图像设置给ImageView
imageView.setImageBitmap(finalImage);