问题:
解决
http://stackoverflow.com/questions/29300732/render-text-box-with-transparent-background-on-top-of-image-in-react-native-ios
<Image style={{ width: widthSrc, height: 180 }} resizeMode='stretch' source={{ uri: this.props.data.trainID.platImg }}>
<View style={styles.imageback}>
<Text style={{ fontSize: 30, color: '#FFFFFF', marginLeft: 15, marginTop: 72 }}>{this.props.data.trainID.name}</Text>
</View>
</Image>
const styles = StyleSheet.create({
imageback:{
backgroundColor: 'rgba(0,0,0,0)',
},
});