Android毛玻璃背景效果简单实现代码

概述思路：    1.使用findViewByid获得需要设置毛玻璃的控件。    2.调用setBlurBackground(Bitmapbmp)方法（下面会给出），参数为Bitmap类型，给控件设置毛玻璃背景！

思路：

     1.使用findVIEwByID获得需要设置毛玻璃的控件。

     2.调用 setBlurBackground(Bitmap bmp)方法（下面会给出），参数为Bitmap类型，给控件设置毛玻璃背景！

     3.已完成，

方法：

/** * 设置毛玻璃背景 * 背景图片 Bitmap */private voID setBlurBackground(Bitmap bmp){  final Bitmap blurBmp = BlurUtil.fastblur(ParentCircleInfoActivity.this,bmp,10);//0-25，表示模糊值  final Drawable drawable = ImageUtil.getDrawable(this,blurBmp);//将bitmap类型图片 转为 Drawable类型  mRLhead.post(new Runnable() //调用UI线程  {    @OverrIDe    public voID run()    {      mRLhead.setBackgroundDrawable(drawable);    }  });}bitmap 转 drawable:/** * bitmap -> drawable * @param context * @param bm * @return */public static Drawable getDrawable(Context context,Bitmap bm){  BitmapDrawable bd= new BitmapDrawable(context.getResources(),bm);  return bd;}使用到的工具类：public class BlurUtil {   @Suppresslint("NewAPI")  public static Bitmap fastblur(Context context,Bitmap sentBitmap,int radius)   {    if (VERSION.SDK_INT > 16)    {         Bitmap bitmap = sentBitmap.copy(sentBitmap.getConfig(),true);      final RenderScript rs = RenderScript.create(context);     final Allocation input = Allocation.createFromBitmap(rs,sentBitmap,Allocation.MipmapControl.MIPMAP_NONE,Allocation.USAGE_SCRIPT);     final Allocation output = Allocation.createTyped(rs,input.getType());     final ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs,Element.U8_4(rs));     script.seTradius(radius);/* e.g. 3.f */     script.setinput(input);     script.forEach(output);          output.copyTo(bitmap);         return bitmap;     }      Bitmap 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];    Log.e("pix",w + " " + h + " " + pix.length);    bitmap.getPixels(pix,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++)       {        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,h);    return (bitmap);  }}

总结

以上所述是小编给大家介绍的AndroID毛玻璃背景效果简单实现代码，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对编程小技巧网站的支持！

总结

以上是内存溢出为你收集整理的Android毛玻璃背景效果简单实现代码全部内容，希望文章能够帮你解决Android毛玻璃背景效果简单实现代码所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。