Zbar Android Costum Camera Preview Stretched -

i customize camera view of zbar api in zbarscanneractivity class. code added.

    setcontentview(r.layout.scanner);      mautofocushandler = new handler();      // create , configure imagescanner;     setupscanner();      // create relativelayout container hold surfaceview,     // , set content of our activity.     mpreview = new camerapreview(this, this, autofocuscb);     linearlayout zbarlayout = (linearlayout) findviewbyid(r.id.zbar_layout_area);     mpreview.setlayoutparams(new linearlayout.layoutparams(layoutparams.match_parent, layoutparams.match_parent));     zbarlayout.addview(mpreview); 

then when run app camera preview wrong rotate using setdisplayorientation 90. rotate camera view stretched. camerapreview code.

private final string tag = "camerapreview";  surfaceview msurfaceview; surfaceholder mholder; size mpreviewsize; list<size> msupportedpreviewsizes; camera mcamera; previewcallback mpreviewcallback; autofocuscallback mautofocuscallback;  camerapreview(context context, previewcallback previewcallback, autofocuscallback autofocuscb) {     super(context);      mpreviewcallback = previewcallback;     mautofocuscallback = autofocuscb;     msurfaceview = new surfaceview(context);      addview(msurfaceview);      // install surfaceholder.callback notified when     // underlying surface created , destroyed.     mholder = msurfaceview.getholder();     mholder.addcallback(this);     mholder.settype(surfaceholder.surface_type_push_buffers); }  public void setcamera(camera camera) {     mcamera = camera;     if (mcamera != null) {         msupportedpreviewsizes = mcamera.getparameters().getsupportedpreviewsizes();         requestlayout();     } }  @override protected void onmeasure(int widthmeasurespec, int heightmeasurespec) {     // purposely disregard child measurements because act     // wrapper surfaceview centers camera preview instead     // of stretching it.     final int width = resolvesize(getsuggestedminimumwidth(), widthmeasurespec);     final int height = resolvesize(getsuggestedminimumheight(), heightmeasurespec);     setmeasureddimension(width, height);      if (msupportedpreviewsizes != null) {         mpreviewsize = getoptimalpreviewsize(msupportedpreviewsizes, width, height);     } }  @override protected void onlayout(boolean changed, int l, int t, int r, int b) {     if (changed && getchildcount() > 0) {         final view child = getchildat(0);          final int width = r - l;         final int height = b - t;          int previewwidth = width;         int previewheight = height;         if (mpreviewsize != null) {             previewwidth = mpreviewsize.width;             previewheight = mpreviewsize.height;         }          // center child surfaceview within parent.         if (width * previewheight > height * previewwidth) {             final int scaledchildwidth = previewwidth * height / previewheight;             child.layout((width - scaledchildwidth) / 2, 0,                     (width + scaledchildwidth) / 2, height);         } else {             final int scaledchildheight = previewheight * width / previewwidth;             child.layout(0, (height - scaledchildheight) / 2,                     width, (height + scaledchildheight) / 2);         }     } }  public void hidesurfaceview() {     msurfaceview.setvisibility(view.invisible); }  public void showsurfaceview() {     msurfaceview.setvisibility(view.visible); }  public void surfacecreated(surfaceholder holder) {     // surface has been created, acquire camera , tell     // draw.     try {         if (mcamera != null) {             mcamera.setpreviewdisplay(holder);         }     } catch (ioexception exception) {         log.e(tag, "ioexception caused setpreviewdisplay()", exception);     } }  public void surfacedestroyed(surfaceholder holder) {     // surface destroyed when return, stop preview.     if (mcamera != null) {         mcamera.cancelautofocus();         mcamera.stoppreview();     } }   private size getoptimalpreviewsize(list<size> sizes, int w, int h) {     final double aspect_tolerance = 0.1;     double targetratio = (double) w / h;     if (sizes == null) return null;      size optimalsize = null;     double mindiff = double.max_value;      int targetheight = h;      // try find size match aspect ratio , size     (size size : sizes) {         double ratio = (double) size.width / size.height;         if (math.abs(ratio - targetratio) > aspect_tolerance) continue;         if (math.abs(size.height - targetheight) < mindiff) {             optimalsize = size;             mindiff = math.abs(size.height - targetheight);         }     }      // cannot find 1 match aspect ratio, ignore requirement     if (optimalsize == null) {         mindiff = double.max_value;         (size size : sizes) {             if (math.abs(size.height - targetheight) < mindiff) {                 optimalsize = size;                 mindiff = math.abs(size.height - targetheight);             }         }     }     log.d("edgar", optimalsize.width + "  " + optimalsize.height);     return optimalsize; }  public void surfacechanged(surfaceholder holder, int format, int w, int h) {     if (holder.getsurface() == null){       // preview surface not exist       return;     }      if (mcamera != null) {         // size known, set camera parameters , begin         // preview.         camera.parameters parameters = mcamera.getparameters();         parameters.setpreviewsize(mpreviewsize.width, mpreviewsize.height);         requestlayout();          mcamera.setdisplayorientation(90);         mcamera.setparameters(parameters);         mcamera.setpreviewcallback(mpreviewcallback);         mcamera.startpreview();         mcamera.autofocus(mautofocuscallback);     } } 

please me fix camera view. thank helping.

if trying view in portrait view, show landscape view portal not 'squished' suggest doing layout preview behind other layouts.

<relativelayout       android:layout_height="fill_parent"       android:layout_width="fill_parent"       >        <framelayout         android:id="@+id/camera_preview"         android:layout_width="fill_parent"         android:layout_height="fill_parent">             <linearlayout             android:id="@+id/ticket_overlay"             android:layout_width="fill_parent"             android:layout_height="fill_parent"             android:orientation="vertical" >             <... stuff here ... w/ background>             <... spacer here ... w/ transparent show view portal>             <... stuff here ... w/ background>        </linearlayout>     </framelayout> </relativelayout>