How do android:shrinkColumns and android:stretchColumns work?

问题

I can set android:shrinkColumns and android:stretchColumns at TableLayout.

For example:

<TableLayout
    android:shrinkColumns="2,3"
    android:stretchColumns="1,3"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"/>

So how do this properties affects columns?

回答1:

TableLayout can specify certain columns as shrinkable or stretchable by calling setColumnShrinkable()(xml:android:shrinkColumns) or setColumnStretchable()(xml:android:stretchColumns).

If marked as shrinkable, the column width can be shrunk to fit the table into its parent object. If marked as stretchable, it can expand in width to fit any extra space.

The total width of the table is defined by its parent container. It is important to remember that a column can be both shrinkable and stretchable .

For details information you may visit

https://developer.android.com/reference/android/widget/TableLayout.html

回答2:

maybe this can help

 <TableLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:shrinkColumns="2,3"
    android:stretchColumns="1">

    <TableRow>

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_column="1"
            android:background="@color/red"
            android:text="1" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_column="1"
            android:background="@color/green"
            android:text="2" />

        <TextView
            android:layout_width="wrap_content"
            android:background="@color/blue"
            android:layout_height="wrap_content"
            android:layout_column="1"
            android:text="3" />

    </TableRow>

    <TableRow>

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_column="1"
            android:background="@color/red"

            android:text="4" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_column="1"
            android:background="@color/green"

            android:text="5" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_column="1"
            android:background="@color/blue"
            android:text="6" />
    </TableRow>
</TableLayout>

Explanations:

android:shrinkColumns="2,3"

android:stretchColumns="1"

Means that the columns 2 and 3 will be shrunk, and the column 1 will be stretched

android:shrinkColumns="3"

android:stretchColumns="1,2"

Means that the column 3 will be shrunk, and the columns 1 and 2 will be stretched

android:shrinkColumns="1"

android:stretchColumns="2,3"

Means that the column 3 will be shrunk, and the columns 1 and 2 will be stretched

android:stretchColumns="*" Means that all columns will be stretched evenly

android:shrinkColumns="*" Means that all columns will be shrunken evenly

来源：https://stackoverflow.com/questions/32331368/how-do-androidshrinkcolumns-and-androidstretchcolumns-work

标签

android

android-tablelayout

stretch

shrink