使用layout_width =“ wrap_content”获取TextView的可用宽度

Question

I have a complex layout that has TextView with layout_width="wrap_content" . I want to get maximum width that this TextView can fill.

Is there a universal way to do it? Or should I go over all parents and calculate their margins, paddings, etc? How does Android do it?

Answer 1

You can get it's parent and calculate it's width like this. This width would be the maximum width the TextView can take provided the parent has no padding.

View parent = (View) textView.getParent();
int width = parent.getWidth();

If the parent has some padding you'll need to compute it separately and subtract from this width.

int paddingE = parent.getPaddingEnd();
int paddingS = parent.getPaddingStart();
int totalWidth = width - (paddingE + paddingS);