Why would layout_width=“wrap_content” take up the entire width of the screen?

Question

With this xml:

Answer 1

Dont understand....
Cant see layout_width attribute,layout_height attribute for TableRow.no Elements can be without these attributes.

Answer 2

Your problem is that the width specification in your xml is ignored. From the docs for TableRow:

The children of a TableRow do not need to specify the layout_width and layout_height attributes in the XML file. TableRow always enforces those values to be respectively MATCH_PARENT and WRAP_CONTENT.

P.S. Did you have a compelling reason to use absolute pixels? That's generally considered bad practice.

P.P.S. Double-posting my answer to go with the double-posting of your question. :)

Answer 3

Have you looked at this question?

Button width in Android TableLayout

The issue could be caused by using android:stretchColumns="*" in your TableLayout, but it is difficult to tell without the rest of your XML.