React Native fixed footer
Off the top of my head you could do this with a ScrollView. Your top-level container could be a flex container, inside that have a ScrollView at the top and your footer at the bottom. Then inside the ScrollView just put the rest of your app as normal.
Here's the actual code based on Colin's Ramsay answer:
<View style={{flex: 1}}>
<ScrollView>main</ScrollView>
<View><Text>footer</Text></View>
</View>