After a little bit of hunting around I found this tutorial, and I thought I'd clean up the lessons within and show you how.
Here's the contents of my main.xml layout file,
<?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"android:background="@drawable/backrepeat"android:gravity="center_horizontal"><TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"/></LinearLayout>
which is referenced in code in the standard way like this:
@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);...// (rest of onCreate method continues here..)
Now note this line:
android:background="@drawable/backrepeat"
What's going on there?
.. Glad you asked!
Here's a quick screenshot of the contents of one of my drawable folders in my project:
What is this
backrepeat.xml?
Well, here's the contents of that file here:
<bitmapxmlns:android="http://schemas.android.com/apk/res/android"android:src="@drawable/scale1"android:tileMode="repeat"android:dither="true" />
Can you see what's going on?
Backrepeat.xml defines an instance of the BitmapDrawable class, and that class references our simple scale1.jpg, located in the drawable-hdpi folder.
Simply by adding the:
<bitmapxmlns:android="http://schemas.android.com/apk/res/android"android:src="@drawable/scale1"android:tileMode="repeat"android:dither="true" />
line in bold, we are able to achieve results such as this:
Easy isn't it?
One thing to keep in mind is that you should have folders drawable-hdpi, drawable-mdpi & drawable-ldpi, you'll need to add this backrepeat.xml file and the relevant images to each of these to allow this functionality in high, medium and low dpi (dots per inch) screen sizes.
Enjoy.
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