@Override public boolean onCreateOptionsMenu(Menu menu) { List<String> effects = mOpenCvCameraView.getEffectList(); if (effects == null) { Log.e(TAG, "Color effects are not supported by device!"); return true; } mColorEffectsMenu = menu.addSubMenu("Color Effect"); mEffectMenuItems = new MenuItem[effects.size()]; int idx = 0; ListIterator<String> effectItr = effects.listIterator(); while (effectItr.hasNext()) { String element = effectItr.next(); mEffectMenuItems[idx] = mColorEffectsMenu.add(1, idx, Menu.NONE, element); idx++; } mResolutionMenu = menu.addSubMenu("Resolution"); mResolutionList = mOpenCvCameraView.getResolutionList(); mResolutionMenuItems = new MenuItem[mResolutionList.size()]; ListIterator<Size> resolutionItr = mResolutionList.listIterator(); idx = 0; while (resolutionItr.hasNext()) { Size element = resolutionItr.next(); mResolutionMenuItems[idx] = mResolutionMenu.add( 2, idx, Menu.NONE, Integer.valueOf(element.width).toString() + "x" + Integer.valueOf(element.height).toString()); idx++; } return true; }