how to modify this code to stretch the image to full screen in android -

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i got code draws images according size of image. want stretch image full screen. tried lot nothing helped. can me? in advance

public bitmap getbitmap(int width, int height, int index) {         bitmap b = bitmap.createbitmap(width, height,                 bitmap.config.argb_8888);         b.erasecolor(0xf000ffff);         canvas c = new canvas(b);         drawable d = getresources().getdrawable(mbitmapids[index]);          int margin = 1;         int border =1 ;         rect r = new rect(margin, margin, width - margin, height - margin);          int imagewidth = r.width() - (border * 2);         int imageheight = imagewidth * d.getintrinsicheight()                 / d.getintrinsicwidth();         if (imageheight > r.height() - (border * 2)) {             imageheight = r.height() - (border * 2);             imagewidth = imageheight * d.getintrinsicwidth()                     / d.getintrinsicheight();         }          r.left += ((r.width() - imagewidth) / 2) - border;         r.right = r.left + imagewidth + border + border;         r.top += ((r.height() - imageheight) / 2) - border;         r.bottom = r.top + imageheight + border + border;          paint p = new paint();          p.setcolor(0xffc0c0c0);         c.drawrect(r, p);         r.left += border;         r.right -= border;         r.top += border;         r.bottom -= border;          d.setbounds(r);         d.draw(c);         return b;     }

check out this.................onclick method of thumbnail, can start new activity in fullscreen mode: 

getwindow().setflags(windowmanager.layoutparams.flag_fullscreen, windowmanager.layoutparams.flag_fullscreen);

and pass image uri or indicate image source new activity : 

intent intent = new intent(youactivity.this, fullimage.class);   intent.putextra("imageuri", r.drawable.yourimage); // or path image.

in fullimage activity class 

imageview icon = (imageview) findviewbyid(r.id.myimage);   bitmapfactory.options options = new bitmapfactory.options();  options.intempstorage = new byte[3*1024];   bitmap ops = bitmapfactory.decodefile(path, options); // instead path can image previous activity.    icon.setimagebitmap(ops);

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