r.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
r.setGravity(Gravity.CENTER_VERTICAL);
r.setPadding(getResources().getDimensionPixelSize(R.dimen.activity_horizontal_margin), dp2px(3), getResources().getDimensionPixelSize(R.dimen.activity_horizontal_margin), dp2px(4));
r.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
r.setGravity(Gravity.CENTER_VERTICAL);
r.setPadding(getResources().getDimensionPixelSize(R.dimen.activity_horizontal_margin), dp2px(3), getResources().getDimensionPixelSize(R.dimen.activity_horizontal_margin), dp2px(4));