test

HomeFragment.java

 int margin = getResources().getDimensionPixelSize(R.dimen.activity_horizontal_margin);
        int width = mSessionManager.getWidthPixels() - margin;
//        int width = (int) (mSessionManager.getWidthPixels() - margin * 3.7);
        int height = (3 * width) / 4;

        Context context = getActivity().getApplicationContext();
        float heightDp = AppHelper.dpFromPx(context, height);
        float overlapPagerMarginDp = (-42 * heightDp) / 220;
//        float overlapPagerMarginDp = (-30 * heightDp) / 220;
        mOverlapPagerMargin = AppHelper.pxFromDp(context, overlapPagerMarginDp);