I've wasted a ton of time on this, and of all the "answers" I've seen searching, none work. Basically, I just want a bitmap to be centered horizontally in the theme, then repeating vertically. No matter what I do, it's always left-aligned. I've tried it in code, and in XML. Here's what I'm using right now:
AndroidManifest.xml
<activity android:name=".MyActivity" android:label="MyActivity"
android:theme="@style/Them开发者_开发问答eName" />
res/values/styles.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="ThemeName" parent="android:Theme">
<item name="android:windowBackground">@drawable/xml_bitmap</item>
</style>
</resources>
res/drawable/xml_bitmap.xml
<?xml version="1.0" encoding="UTF-8"?>
<bitmap
xmlns:android="http://schemas.android.com/apk/res/android"
android:src="@drawable/png_image"
android:tileMode="repeat"
android:gravity="center_horizontal"
/>
To help clarify, I've also tried setting the background to the bitmap in code like so:
Resources r = getResources();
Drawable d = r.getDrawable(R.drawable.xml_bitmap);
getListView().setBackgroundDrawable(d);
This gives the exact same result; leading me to believe something is wrong in the xml_bitmap.xml file. From what I've read in the docs, there's not many other options, and what I have would SEEM to be correct: Drawable Resources
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