Android实现个人资料页面头像背景模糊显示包(状态栏)

public static void alphaTask(Activity context) {  context.getWindow().requestFeature(Window.FEATURE_NO_TITLE);  if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {    Window window = context.getWindow();    window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS        | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);    window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN        | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION        | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);    window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);    window.setStatusBarColor(Color.TRANSPARENT);    window.setNavigationBarColor(Color.TRANSPARENT);  }}

public static int getStatusBarHight(Context context) {    /**     * 获取状态栏高度――方法1     * */    int statusBarHeight = -1;    //获取status_bar_height资源的ID    int resourceId = context.getResources().getIdentifier("status_bar_height", "dimen", "android");    if (resourceId > 0) {      //根据资源ID获取响应的尺寸值      statusBarHeight = context.getResources().getDimensionPixelSize(resourceId);    }//    int i = DensityUtil.px2dip(context, statusBarHeight);    return statusBarHeight;  }

public class FastBlurUtils {  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);  }}

/** * 转换图片成圆形 * @param bitmap 传入Bitmap对象 * @return */public static Bitmap toRoundBitmap(Bitmap bitmap) {  int width = bitmap.getWidth();  int height = bitmap.getHeight();  float roundPx;  float left, top, right, bottom, dst_left, dst_top, dst_right, dst_bottom;  if (width <= height) {    roundPx = width / 2;    top = 0;    bottom = width;    left = 0;    right = width;    height = width;    dst_left = 0;    dst_top = 0;    dst_right = width;    dst_bottom = width;  } else {    roundPx = height / 2;    float clip = (width - height) / 2;    left = clip;    right = width - clip;    top = 0;    bottom = height;    width = height;    dst_left = 0;    dst_top = 0;    dst_right = height;    dst_bottom = height;  }  Bitmap output = Bitmap.createBitmap(width,      height, Bitmap.Config.ARGB_8888);  Canvas canvas = new Canvas(output);  final int color = 0xff424242;  final Paint paint = new Paint();  final Rect src = new Rect((int)left, (int)top, (int)right, (int)bottom);  final Rect dst = new Rect((int)dst_left, (int)dst_top, (int)dst_right, (int)dst_bottom);  final RectF rectF = new RectF(dst);  paint.setAntiAlias(true);  canvas.drawARGB(0, 0, 0, 0);  paint.setColor(color);  canvas.drawRoundRect(rectF, roundPx, roundPx, paint);  paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));  canvas.drawBitmap(bitmap, src, dst, paint);  return output;}