Android: How to make the text size of Borderless button same as that of TextView -

in following 2 images, there 4 widgets in horizontal linear layout:

1. a textview text results:
2. a borderless button text my cat
3. a view hack "vertical separator"
4. a borderless button text my dog

two questions:

1. results: in first 1 bold because used <b> tag around in string resources file. used <strong> tag in second one, not make bold.

   i did read that strong has semantic meaning, may screen reader blind people read in different tone, blind people. but visually, should bold, isn't it?

2. i want text in buttons of same size textview. believe need text size of textview (or default size in android system? or "default size" on user's device? :s ) in sp (because sp scaled user's font preference) and set text size of button same that? how can that?

can in xml? or possible programatically? , how?

use android:textstyle="bold" bold text , android:textsize="12sp" change text size of button in xml.