Android - Problems cropping a Bitmap to display in an ImageView -

thanks reading, have been trying going days , have searched code can. see below have tried number of approaches.

i using 3rd party device returns bitmap of size 152 x 500. there black strip vertically down left side 24 wide. in actual fact needing 128 x 500 start 24 in left.

whatever try cannot seem rid of black strip when image saved.

here code, sorry it's thought show all.

// scan button clicked , log.e("tag", "wait scan capture");

much appreciate on this.

    public class imagecaptureactivity extends activity implements onclicklistener {      private linearlayout ll_root;     private button btn_scan;     private button btn_process;      private linearlayout mlayout;     private button mbutton;     private fingerview mimageview;     private fpcdevkitinterface mfpcdevkit;       public view minutiaview;     public bitmap tempbitmap;     public bitmap scanbitmap;       @override     public void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.my_login_scan);           log.e("tag", "0");         //ll_root = (linearlayout)findviewbyid(r.id.ll_root);         btn_scan = (button)findviewbyid(r.id.scan);         btn_process = (button)findviewbyid(r.id.proceed_button);         log.e("tag", "1");  //      mfpcdevkit = new ssddevice  ((usbmanager) getsystemservice(context.usb_service)); //      mimageview = new fingerview(this, mfpcdevkit.createcompatiblebitmap()); //      mimageview.setlayoutparams(new linearlayout.layoutparams(200,200));          //add view here.         // ll_root.addview(mimageview);         // keep commented, because cannot find id of ll_root. null.         log.i("tag", "2");           log.e("tag", "5");  /* ---------------------------------------------------------------------------------------------------------------*/         /* following initial screen layout section done setup of screen , before capture clicked */          // manually set screen layout          mlayout = new linearlayout(this);         mlayout.setorientation(linearlayout.vertical);  // manually create button                mbutton = new button(this);         mbutton.setonclicklistener(this);         mbutton.settext("capture image");   // setup fpc service finger scan device         log.e("tag", "setup fpc");         mfpcdevkit = new ssddevice  ((usbmanager) getsystemservice(context.usb_service));  // call fingerview function , load bitmap mimageview         log.e("tag", "load mimageview");         mimageview = new fingerview(this, mfpcdevkit.createcompatiblebitmap());  // modify viewing area scanned image size                mimageview.setlayoutparams(new linearlayout.layoutparams(24+128,500));  // left area plus image width , crop of right area  // add button , mimageview layout         log.e("tag", "add views");         mlayout.addview(mbutton);         mlayout.addview(mimageview);  // display screen         log.e("tag", "display screen");         setcontentview(mlayout);           // setcontentview(r.layout.my_login_scan);  /* ----------- end screen layout setup ------------------ */              }      public static alertdialog createcapturepromtdialog(context context,             devkittype type) {         alertdialog.builder builder = new alertdialog.builder(context);         if (type == devkittype.asd)             builder.settitle("place finger on sensor");         else             builder.settitle("swipe finger on sensor");          return builder.create();     }      private class fingerview extends view {          public bitmap mbitmap;         private matrix mmatrix;          public fingerview(context context, bitmap bitmap) {             super(context);             mbitmap = bitmap;             mmatrix = new matrix();             setbackgroundcolor(color.white);  // full screen area background colour template area colour             setdrawingcacheenabled(true);             log.e("tag", "fingerview");         }          public bitmap getbitmap() {             return mbitmap;         }            @override         protected void onsizechanged(int w, int h, int oldw, int oldh) {             log.e("onsizechanged", "w = " + w + " h = " + h + " oldw = " + oldw                     + " oldh = " + oldh);                // use scale current bitmap fill screen.             // last variable: matrix.scaletofit.fill fill 2 dimensions             // matrix.scaletofit.center scale center , keep             // width/height ratio.              //mmatrix.setrecttorect(             //      new rectf(0, 0, mbitmap.getwidth(), mbitmap.getheight()),             //      new rectf(0, 0, w, h), matrix.scaletofit.center);             super.onsizechanged(w, h, oldw, oldh);                          // lets try resize 150 x 500 - harry july 14 2013 //          mmatrix.setrecttorect(new rectf(0, 0, 128, 500),new rectf(-24, 0, 150, 500), matrix.scaletofit.center);              log.e("tag", "inside onsizechanged " + 0);  /*  scales image fit new rectangle imageview             matrix m = imageview.getimagematrix();             rectf drawablerect = new rectf(0, 0, imagewidth, imageheight);             rectf viewrect = new rectf(0, 0, imageview.getwidth(), imageview.getheight());             m.setrecttorect(drawablerect, viewrect, matrix.scaletofit.center);             imageview.setimagematrix(m); */                      }            @suppresslint("drawallocation")         @override         protected void ondraw(canvas canvas) {              log.e("ondraw begin","");             canvas.drawbitmap(mbitmap, mmatrix, null);             super.ondraw(canvas);          }     }    // scan button clicked       public void onclick(view v) {          log.e("tag", "onclick happened");          // erase scan area white         mimageview.getbitmap().erasecolor(color.white);   // doesn't seem make difference  //          bitmap tempbitmap = bitmap.createbitmap(128+24+24,500,bitmap.config.argb_8888);              log.e("onclick enter second one= " + 0,                 "w = " + 0 + " h =" + 0);          try {              // wait scanner , load image mimageview.mbitmap             mfpcdevkit.clearabort();             log.e("tag", "wait scan capture");              scanbitmap = mfpcdevkit.createcompatiblebitmap();             mfpcdevkit.waitandcaptureimage(mimageview.getbitmap());  //  image displays in mimageview             //mfpcdevkit.waitandcaptureimage(scanbitmap);            // tried put image bitmap                //create new image bitmap , attach brand new canvas //          bitmap minbitmap = bitmap.createbitmap(mybitmap.getwidth(), mybitmap.getheight(), bitmap.config.argb_8888);             canvas tempcanvas = new canvas(scanbitmap);              //draw image bitmap canvas //          tempcanvas.drawbitmap(scanbitmap, 0, 0, null);              //draw else want canvas, in example rectangle rounded edges //          tempcanvas.drawroundrect(new rectf(x1,y1,x2,y2), 2, 2, scanbitmap);              //attach canvas imageview //          mimageview.setbackgrounddrawable(new bitmapdrawable(getresources(), scanbitmap));            //  @override protected void ondraw(canvas canvas) { canvas.drawcolor(0xffaaaaaa); canvas.drawbitmap(mbitmap, 0, 0, mbitmappaint); if(item_id==3){ canvas.drawtext(appmodel.contents, 100, 100, mpaint); } else{ canvas.drawpath(mpath, mpaint); } }   //          bitmap mmbitmap = bitmap.createbitmap(mimageview.mbitmap, 22, 0, mimageview.mbitmap.getwidth()-100, mimageview.mbitmap.getheight()); //          canvas canvas1 = new canvas(mmbitmap); //          mimageview.setimagebitmap(tempbitmap);                 // crop image here.             log.e("before crop", "w = " + mimageview.getbitmap().getwidth()                     + " h = " + mimageview.getbitmap().getheight());              // parameters show  w = 176 h = 500          // harry's mods flow here --------            // bitmap harrybitmap = bitmap.createbitmap(mimageview.getwidth(),mimageview.getheight(),bitmap.config.argb_8888);         //  bitmap harrybitmap = bitmap.createbitmap(128,500,bitmap.config.argb_8888);         //  canvas canvas = new canvas(harrybitmap); //          mimageview.draw(canvas);  //          bitmap resizedbitmap1 = bitmap.createbitmap(tempbitmap,24,0,150,500); //          canvas canvas1 = new canvas(resizedbitmap1); //              mimageview.draw(canvas1);          /* try number 2 approach                           paint paint = new paint();             paint.setfilterbitmap(true);              int targetwidth  = 128;             int targetheight = 500;              bitmap targetbitmap = bitmap.createbitmap(targetwidth, targetheight,bitmap.config.argb_8888);              canvas canvas = new canvas(scanbitmap);              canvas.drawbitmap( scanbitmap, new rect(24, 0, 176, 500),                             new rectf(0, 0, targetwidth, targetheight), paint);  //            matrix matrix = new matrix(); //            matrix.postscale(1f, 1f); //            bitmap resizedbitmap = bitmap.createbitmap(targetbitmap, 0, 0, 128, 500, matrix, true); //  //            //convert bitmap resource   //            //bitmapdrawable bd = new bitmapdrawable(resizedbitmap); //  //            canvas.drawbitmap( resizedbitmap, new rect(24, 0, 128, 500), //                    new rect(0, 0, 128, 500), paint);              mimageview.draw(canvas); */                             log.e("after crop", "w = " + mimageview.getbitmap().getwidth()                     + " h = " + mimageview.getbitmap().getheight());              // end harry's mods flow --------                // save image sd card testing viewing              savescreen(mimageview.getbitmap());           } catch (ioexception e) {             toast.maketext(this, e.tostring(), toast.length_long).show();             e.printstacktrace();         } catch (interruptedexception e) {             // todo auto-generated catch block             e.printstacktrace();         }         mimageview.postinvalidate();     }    // not used - harry july 14 2013     private bitmap cropbitmap(bitmap bitmap) {         bitmap result = bitmap.createbitmap(bitmap, 1, 1, 128, 500);         log.e("croped",                 "w = " + result.getwidth() + " h = " + result.getheight());         return result;     }      public void savescreen(bitmap bitmap) {          log.e("savescreen enter= " + bitmap.getbytecount(),                 "w = " + bitmap.getwidth() + " h =" + bitmap.getheight());          string root = environment.getexternalstoragepublicdirectory(                 environment.directory_pictures).tostring();         file mydir = new file(root + "/images");         mydir.mkdirs();         string fname = "fpckit.jpg";         file file = new file(mydir, fname);         /*          * boolean done = false; int n = 1; { string fname = "image-" + n +          * ".jpg"; file = new file(mydir, fname); if (!file.exists()) { done =          * true; } n++; } while (!done);          */         try {             fileoutputstream out = new fileoutputstream(file);             // bitmap.compress(bitmap.compressformat.jpeg, 100, out);             // bitmap bmp = mimageview.getbitmap();             // bmp.compress(bitmap.compressformat.jpeg, 100, out);             log.e("onsave bytes= " + bitmap.getbytecount(),                     "w = " + bitmap.getwidth() + " h =" + bitmap.getheight());             //this previous version. save entire image.              mimageview.getdrawingcache().compress(bitmap.compressformat.jpeg, 100, out); //          bitmap.compress(bitmap.compressformat.png, 100, out);                out.flush();             out.close();              toast toast = toast.maketext(imagecaptureactivity.this,                     "image saved " + file.getabsolutepath(),                     toast.length_short);             toast.show();          } catch (exception e) {             e.printstacktrace();             toast toast = toast.maketext(imagecaptureactivity.this,                     "exception saving image: " + e.getlocalizedmessage(),                     toast.length_short);             toast.show();         }      }  }