Android camera2api preview size stretches -


i m trying recording using camera2 api in android , my preview size stretches.

can me why preview stretches

here code:

      private void setupcamera(int width, int height) {     cameramanager = (cameramanager) getsystemservice(context.camera_service);     try {         (string camid : cameramanager.getcameraidlist()) {             cameracharacteristics = cameramanager.getcameracharacteristics(camid);             if (cameracharacteristics.get(cameracharacteristics.lens_facing) == cameracharacteristics.lens_facing_front) {                 continue;             }             streamconfigurationmap map = cameracharacteristics.get(cameracharacteristics.scaler_stream_configuration_map);             //handling rotation of screen             int deviceorientation = getwindowmanager().getdefaultdisplay().getrotation();             totalrotation = devicerotation(cameracharacteristics, deviceorientation);             boolean swaprotation = totalrotation == 90 || totalrotation == 270;             int rotatedwidth = height;             int rotatedheigth = width;             if (swaprotation) {                 rotatedwidth = width;                 rotatedheigth = height;             }             mpreviewsize = chooseoptimalsize(map.getoutputsizes(surfacetexture.class), rotatedwidth, rotatedheigth);             mvideosize = chooseoptimalsize(map.getoutputsizes(mediarecorder.class), rotatedwidth, rotatedheigth);             mcamid = camid;             return;         }     } catch (cameraaccessexception e) {         e.printstacktrace();     } }   private static size chooseoptimalsize(size[] choices, int width, int height) {     list<size> bigenough = new arraylist<size>();     (size option : choices) {         if (option.getheight() == option.getwidth() * height / width &&                 option.getwidth() >= width && option.getheight() >= height) {             bigenough.add(option);         }     }     if (bigenough.size() > 0) {         return collections.min(bigenough, new comparesizebyarea());     } else {         return choices[0];     } }

private static class comparesizebyarea implements comparator {

    @override     public int compare(size lhs, size rhs) {         return long.signum((long) lhs.getwidth() * rhs.getheight() / (long) rhs.getwidth() * lhs.getheight());     } }


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