container doesn't want to display full screen - react-native

Question

my container doesn't want to display full width.. even though I have written the code as below, is there something wrong?
all my style code was here, I gave the background color to show there is a space at the end, and how to remove this until the color become fullscreen
this the code from name.txs
render() {
return (
<Container style = {styles.container}>
<VStack alignItems="center" alignContent="center">
<View style = {styles.view}>
<Text style={{fontSize:12, textAlign:'center'}}>
Please Input your Name
</Text>
<TextInput
style={styles.input}
placeholder='Enter Your Name Here'
onChangeText={ (name) => this.props.authStore.setName(name)}
/>
</View>
<View style = {styles.view}>
<Text style={{fontSize:12, textAlign:'center'}}>
Month of Your Born
</Text>
<TextInput
style={styles.input}
placeholder='January, February, etc.'
onChangeText={ (month) => this.props.authStore.setMonth(month)}
/>
</View>
<View style = {styles.view}>
<Text style={{fontSize:12, textAlign:'center'}}>
Day of Your Born
</Text>
<TextInput
keyboardType="numeric"
placeholder='1-31'
onChangeText={ (day) => this.props.authStore.setDay(day)}
/>
</View>
<View style = {styles.view}>
<Button
title="Submit"
onPress={() => this.props.navigation.push('Zodiac')}/>
</View>
</VStack>
</Container>
);
}

Answer 1

Replace <Container> with <Center flex={1}> from NativeBase