如何更改 TextView 的尺寸和颜色？

Question

While making my first android app I've got some problems with changing the size and color of TextView with Java code.

Answer 1

To change the text color

textView.setTextColor(ContextCompat.getColor(context, R.color.<name_of_color>));

To change the text size

text.setTextSize(TypedValue.COMPLEX_UNIT_SP,14);