本人图片加载用了Glide，模糊用了一个git上面的效果，叫Fglass,总体来说还可以，效果图如下：

下面开始我的代码了：（获取到图片路径，用Glide）

Glide.with(mcontext).load(url).asBitmap().error(R.drawable.pic_nologinbg).into(new SimpleTarget<Bitmap>() {@Overridepublic void onResourceReady(Bitmap resource, GlideAnimation<? super Bitmap> glideAnimation) {iv_head.setImageBitmap(resource);Fglass.blur(resource,rt_headbg,4,12);}
});

下面是Fglass的工具类

public class Fglass {//第一次设置的是吧不显示，所以放弃了/*** 设置高斯模糊** ps:* 设置高斯模糊是依靠scaleFactor和radius配合使用的，比如这里默认设置是：scaleFactor = 8;radius = 2; 模糊效果和scaleFactor = 1;radius = 20;是一样的，而且效率高* @param toView 高斯模糊设置到某个View上* @param radius 模糊度* @param scaleFactor 缩放比例*/@TargetApi(Build.VERSION_CODES.JELLY_BEAN)public static void blur(Bitmap bkg, View toView,float radius,float scaleFactor) {//获取View的截图
//        Bitmap b = Bitmap.createBitmap(fromView.getWidth(),fromView.getHeight(),Bitmap.Config.ARGB_8888);
//        Drawable drawable = fromView.getDrawable();
//        Bitmap bkg = ((BitmapDrawable) drawable).getBitmap();
//        fromView.buildDrawingCache();
//        Bitmap bkg = fromView.getDrawingCache();int width = bkg.getWidth();int height = bkg.getHeight();int newWidth = toView.getMeasuredWidth();int newHeight = toView.getMeasuredHeight();float scaleWidth = ((float)newWidth)/width;float scaleHeight = ((float)newHeight)/height;//缩放的matrix参数Matrix matrix = new Matrix();matrix.postScale(scaleWidth,scaleHeight);if (radius<1||radius>26) {scaleFactor = 8;radius = 2;}Bitmap overlay = Bitmap.createBitmap((int) (toView.getMeasuredWidth()/scaleFactor),(int) (toView.getMeasuredHeight()/scaleFactor), Bitmap.Config.ARGB_8888);Canvas canvas = new Canvas(overlay);canvas.translate(-toView.getLeft()/scaleFactor, -toView.getTop()/scaleFactor);canvas.scale(1 / scaleFactor, 1 / scaleFactor);Paint paint = new Paint();paint.setFlags(Paint.FILTER_BITMAP_FLAG);bkg = Bitmap.createBitmap(bkg,0,0,width,height,matrix,true);canvas.drawBitmap(bkg, 0, 0, paint);overlay = Fglass.doBlur(overlay, (int) radius, true);toView.setBackground(new BitmapDrawable(overlay));}/*** 高斯模糊操作* @param sentBitmap* @param radius* @param canReuseInBitmap* @return*/public static Bitmap doBlur(Bitmap sentBitmap, int radius, boolean canReuseInBitmap) {Bitmap bitmap;if (canReuseInBitmap) {bitmap = sentBitmap;} else {bitmap = sentBitmap.copy(sentBitmap.getConfig(), true);}if (radius < 1) {return (null);}int w = bitmap.getWidth();int h = bitmap.getHeight();int[] pix = new int[w * h];bitmap.getPixels(pix, 0, w, 0, 0, w, h);int wm = w - 1;int hm = h - 1;int wh = w * h;int div = radius + radius + 1;int r[] = new int[wh];int g[] = new int[wh];int b[] = new int[wh];int rsum, gsum, bsum, x, y, i, p, yp, yi, yw;int vmin[] = new int[Math.max(w, h)];int divsum = (div + 1) >> 1;divsum *= divsum;int dv[] = new int[256 * divsum];for (i = 0; i < 256 * divsum; i++) {dv[i] = (i / divsum);}yw = yi = 0;int[][] stack = new int[div][3];int stackpointer;int stackstart;int[] sir;int rbs;int r1 = radius + 1;int routsum, goutsum, boutsum;int rinsum, ginsum, binsum;for (y = 0; y < h; y++) {rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;for (i = -radius; i <= radius; i++) {p = pix[yi + Math.min(wm, Math.max(i, 0))];sir = stack[i + radius];sir[0] = (p & 0xff0000) >> 16;sir[1] = (p & 0x00ff00) >> 8;sir[2] = (p & 0x0000ff);rbs = r1 - Math.abs(i);rsum += sir[0] * rbs;gsum += sir[1] * rbs;bsum += sir[2] * rbs;if (i > 0) {rinsum += sir[0];ginsum += sir[1];binsum += sir[2];} else {routsum += sir[0];goutsum += sir[1];boutsum += sir[2];}}stackpointer = radius;for (x = 0; x < w; x++) {r[yi] = dv[rsum];g[yi] = dv[gsum];b[yi] = dv[bsum];rsum -= routsum;gsum -= goutsum;bsum -= boutsum;stackstart = stackpointer - radius + div;sir = stack[stackstart % div];routsum -= sir[0];goutsum -= sir[1];boutsum -= sir[2];if (y == 0) {vmin[x] = Math.min(x + radius + 1, wm);}p = pix[yw + vmin[x]];sir[0] = (p & 0xff0000) >> 16;sir[1] = (p & 0x00ff00) >> 8;sir[2] = (p & 0x0000ff);rinsum += sir[0];ginsum += sir[1];binsum += sir[2];rsum += rinsum;gsum += ginsum;bsum += binsum;stackpointer = (stackpointer + 1) % div;sir = stack[(stackpointer) % div];routsum += sir[0];goutsum += sir[1];boutsum += sir[2];rinsum -= sir[0];ginsum -= sir[1];binsum -= sir[2];yi++;}yw += w;}for (x = 0; x < w; x++) {rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;yp = -radius * w;for (i = -radius; i <= radius; i++) {yi = Math.max(0, yp) + x;sir = stack[i + radius];sir[0] = r[yi];sir[1] = g[yi];sir[2] = b[yi];rbs = r1 - Math.abs(i);rsum += r[yi] * rbs;gsum += g[yi] * rbs;bsum += b[yi] * rbs;if (i > 0) {rinsum += sir[0];ginsum += sir[1];binsum += sir[2];} else {routsum += sir[0];goutsum += sir[1];boutsum += sir[2];}if (i < hm) {yp += w;}}yi = x;stackpointer = radius;for (y = 0; y < h; y++) {// Preserve alpha channel: ( 0xff000000 & pix[yi] )pix[yi] = (0xff000000 & pix[yi]) | (dv[rsum] << 16) | (dv[gsum] << 8) | dv[bsum];rsum -= routsum;gsum -= goutsum;bsum -= boutsum;stackstart = stackpointer - radius + div;sir = stack[stackstart % div];routsum -= sir[0];goutsum -= sir[1];boutsum -= sir[2];if (x == 0) {vmin[y] = Math.min(y + r1, hm) * w;}p = x + vmin[y];sir[0] = r[p];sir[1] = g[p];sir[2] = b[p];rinsum += sir[0];ginsum += sir[1];binsum += sir[2];rsum += rinsum;gsum += ginsum;bsum += binsum;stackpointer = (stackpointer + 1) % div;sir = stack[stackpointer];routsum += sir[0];goutsum += sir[1];boutsum += sir[2];rinsum -= sir[0];ginsum -= sir[1];binsum -= sir[2];yi += w;}}bitmap.setPixels(pix, 0, w, 0, 0, w, h);return (bitmap);}
}

ok了，效果就出来了。