RenderScript是Android在API 11之后加入的，用于高效的图片处理，包括模糊、混合、矩阵卷积计算等，原图：
App中效果图：
代码示例如下
[java] view plain copy print ? public Bitmap blurBitmap(Bitmap bitmap){ //Let's create an empty bitmap with the same size of the bitmap we want to blur Bitmap outBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888); //Instantiate a new Renderscript RenderScript rs = RenderScript.create(getApplicationContext()); //Create an Intrinsic Blur Script using the Renderscript ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs)); //Create the Allocations (in/out) with the Renderscript and the in/out bitmaps Allocation allIn = Allocation.createFromBitmap(rs, bitmap); Allocation allOut = Allocation.createFromBitmap(rs, outBitmap); //Set the radius of the blur blurScript.setRadius(25.f); //Perform the Renderscript blurScript.setInput(allIn); blurScript.forEach(allOut); //Copy the final bitmap created by the out Allocation to the outBitmap allOut.copyTo(outBitmap); //recycle the original bitmap bitmap.recycle(); //After finishing everything, we destroy the Renderscript. rs.destroy(); return outBitmap; }
