I have two TableLayouts, one above the other, in my View. I want them to act as a single table for the purpose of calculating column widths, but appear separately with a gap between them (and the main View background showing through) for aesthetic reasons.
Each table has 3 columns, and I want the column widths sized automatically depending on content, but I just want the columns to line up nicely with the same widths in both tables.
At the moment my tables look like this:
+---------------------------+
| | | |
| | | |
+---------------------------+
+---------------------------+
| | | |
| | | |
| | | |
| | | |
+---------------------------+
But I want them to look like this:
+---------------------------+
| | | |
| | | |
+---------------------------+
+---------------------------+
| | | |
| | | |
| | | |
| | | |
+---------------------------+
The only way I can see of getting what I want is to apply a fixed width to the columns in questions, but that defeats the point of having the TableLayout calculate the widths for me.
Is it at all possible?
You should seriously consider cheating. Stick in a table row that looks identical to your background, and nobody will know that it isn't two tables with a gap between them. You may have to do some fiddling with borders, but I suspect that it's not only possible, but easier than linking two independent table objects.
I'm not sure if this works in every case but you could try setting layout weight of the 3 components you have as table cells. If you use same weight on each column they should endup same size.
example: android:layout_weight="0.5"
来源：https://stackoverflow.com/questions/3378395/android-tablelayout-preserve-column-widths-between-different-tables