android set divider padding for preference screen

Question

I have PreferenceScreen contain many CheckBox , i customize it by refer it to custom layout as bellow :

 
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Answer 1

You must create your own drawable resource for divider:

In this case divider shape height is 4dp and top padding is 5dp, when you set divider height you must sum shape height + inset's.

ListView list = (ListView) findViewById(android.R.id.list);
list.setDivider(new ColorDrawable(Color.RED)); // or some other color int
list.setDividerHeight((5)); //wrorng code
list.setVerticalScrollBarEnabled(false);

To set divider height correctly for all dencity screens you must set it in dp's but for default number "5" interpreted in pixels(px).

final float scale = getContext().getResources().getDisplayMetrics().density;
int pixels = (int) (dps * scale + 0.5f);

For more information about shape and inset drawable resource use Android Documentation Drawable resources