You can get this effect by wrapping text elements in other text elements the way you would wrap a span in a div or another element:
<View>
<Text><Text>This writing should fill most of the container </Text><Text>This writing should fill most of the container</Text></Text>
</View>
You can also get this effect by declaring a flexDirection:’row’ property on the parent along with a flexWrap: ‘wrap’. The children will then display inline:
<View style={{flexDirection:'row', flexWrap:'wrap'}}>
<Text>one</Text><Text>two</Text><Text>Three</Text><Text>Four</Text><Text>Five</Text>
</View>
Check out this example.
https://rnplay.org/apps/-rzWGg