Using multiple layouts with include tag in Android

Question

I'm trying to create a title bar that is the same throughout my application and have been creating layouts like this for each of my activities:

main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical"
 android:layout_width="fill_parent" android:layout_height="fill_parent">
 <include layout="@layout/title_bar_layout" android:id="@+id/title_bar_layout" />
 <include layout="@layout/main_body" android:id="@+id/main_body" />
</LinearLayout>

main_body.xml:

<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:id="@+id/main_table" android:layout_width="fill_parent"
 android:layout_height="fill_parent" android:stretchColumns="1"
 android:orientation="vertical">
</TableLayout>

my onCreate contains:

setContentView(R.layout.main);
TableLayout t = (TableLayout) findViewById(R.id.main_table);

but t always ends up null.

In your example the main layout file is called 'main' but you setContentView with 'schedule'. Is there a link ? If not, check whether there is no other id/main_table element in the same layout. — Jean
– Jean, Commented Oct 19, 2010 at 3:36
Actually was just a typo in my question, sorry! Edited it to reflect what I meant. — powerj1984
– powerj1984, Commented Oct 19, 2010 at 3:37

Pete · Accepted Answer · 2015-07-20 23:15:47Z

3

Give this a try:

TableLayout t = (TableLayout) findViewById(R.id.main_body);

From this page:

you can use android:id to specify the id of the root view of the included layout; it will also override the id of the included layout if one is defined

edited Jul 20, 2015 at 23:15

Pete

4344 silver badges14 bronze badges

answered Oct 19, 2010 at 3:36

dchang

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