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() {

@Override

public 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。