Korean original: [TIP] Table Layout 의 Width 균일하게 설정
The problem
You have several buttons in a TableRow and want every button to have exactly the same width, no matter how large each image or label is.
The fix
Give each child view a width of 0dp and a layout_weight of 1.
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content"> <TableRow> <ImageButton android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:src="@drawable/plusbtn" /> <ImageButton android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:src="@drawable/plusbtn" /> </TableRow> </TableLayout>
Why this works
TableRow and LinearLayout measure each child first and then hand out the remaining space in proportion to layout_weight. With a width of 0dp the starting size of every child is zero, so the whole row width is shared by weight (here 1 : 1). With wrap_content, the content size is counted first, so widths can end up different.
How to check
- Add more buttons or use images of different sizes. The widths should stay equal.
- Set one weight to 2. That button should become twice as wide as the others.
Modern alternatives
- fill_parent was replaced by match_parent in API level 8. The old dip unit is the same as dp.
- For a single row, a horizontal LinearLayout with 0dp widths and weight 1 works the same way.
- For a grid, consider GridLayout (API 21+) with layout_columnWeight, or a ConstraintLayout horizontal chain (spread) with 0dp widths.
Originally written in 2011 in Korean. This English version was added in November 2026.
