Android: (Newb Question) Programatically creating views based on xml

Question

Sorry for the Newb-ness.

I want to create a list of view elements in a LinearLayout (vertical). I created an xml layout that is a TableLayout called "category_list.xml"

<TableLayout>
  <TableRow>
   <ImageView />
   <TextView />
   <CheckBox />
  </TableRow>
</TableLayout>

I want to iterate an array, on each iteration create a new TableLayout view and add it to the LinearLayout. The peice I'm missing is creating a new TableLayout based on the above xml.

Something like

TableLayout t = new TableLayout( R.layout.category_list );

Can someone point me in the right direction? Is it better to generate the TableLayout programatically?

Vidar Vestnes · Accepted Answer · 2010-03-09 20:16:00Z

3

Or by using the static View.inflate function

TableLAyout t = (TableLayout) View.inflate(this, R.layout.category_list, null);

Anyway, be carefull with inflating and deleting too many views in your app, as short lived objects leak memory. Consider using an ListView with and Adapter instead.

answered Mar 9, 2010 at 20:16

Vidar Vestnes

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1 Comment

karnage Over a year ago

I wanted to use a ListView originally, but I am under the impression that to use a ListView, the activity is required to extend ListActivity, which I can't because it is already extending MapActivity.

Dan Lew · Accepted Answer · 2010-03-09 19:37:06Z

2

You want to use a LayoutInflater to "inflate" the xml files. You can get LayoutInflater in an activity by using getLayoutInflater(). Here's how it works (assuming the id of your LinearLayout is "parent"):

LinearLayout parent = (LinearLayout) findViewById(R.id.parent);
LayoutInflater inflater = getLayoutInflater();
TableLayout t = (TableLayout) inflater.inflate(R.layout.category_list, parent);

answered Mar 9, 2010 at 19:37

Dan Lew

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