React Native - ScrollView height changes after keyboard open/close with animation - javascript

I animate my view up 120 pixels when the keyboard opens for a Modal I have. When the keyboard closes, the view returns 120 pixels down. The problem is, the area that goes off screen at the top, when it gets animated back, the view is slightly smaller, and it gets slightly smaller each time, Here is the code - I will put a comment to show the view that is shrinking:
<Animated.View
style={{
paddingTop: 5,
paddingBottom: 10,
paddingLeft: 10,
paddingRight: 10,
marginTop: this.state.yPosition,
marginBottom: this.state.yPositionPositive,
flex: 1,
marginLeft: (Dimensions.get('window').width - 300) / 4,
backgroundColor: 'rgba(0,0,0,0.8)',
width: 300,
borderRadius: 4,
borderWidth: 0,
}}>
<View style={{ flexDirection: 'column', justifyContent: 'space-between', flex: 1 }}>
<View style={{height: 126, backgroundColor: 'blue', alignItems: 'stretch'}}>
<ScrollView contentContainerStyle={{flexGrow:1}} style={{flexDirection: 'column', backgroundColor: '#e6fffe'}}>
<View style={{height: 90, backgroundColor: 'red', flexDirection: 'row', justifyContent: 'center', alignItems: 'center', paddingTop: 5, paddingBottom: 5, borderBottomColor: '#6de3dc', borderBottomWidth: 0}}>
<View style={{justifyContent: 'center', alignItems: 'center', flex: 0.5}}>
<View style={{flexDirection: 'column', justifyContent: 'space-between'}}>
<Image
source={require('../assets/billythekid2.jpg')}
style={{height: 60, width: 60, marginTop: Platform.OS === 'ios' ? 10 : 10, borderColor: '#6de3dc', borderWidth: 2, borderRadius: 30}}
/>
<View style={{flexDirection: 'row', justifyContent: 'center', alignItems: 'center', marginTop: 5}}>
<Ionicons
name='ios-star'
color='#eec400'
size={14}
/>
<Ionicons
name='ios-star'
color='#eec400'
size={14}
/>
<Ionicons
name='ios-star'
color='#eec400'
size={14}
/>
<Ionicons
name='ios-star'
color='#eec400'
size={14}
/>
<Ionicons
name='ios-star'
color='#eec400'
size={14}
/>
</View>
</View>
</View>
<View style={{flexDirection: 'column', backgroundColor: '#e6fffe', marginTop: Platform.OS === 'ios' ? 10 : 10, flex: 0.5}}>
<View style={{flexDirection: 'row', flex: 0.5}}>
<View style={{flex: 0, alignSelf: 'center'}}>
<Text style={{fontSize: 16, fontWeight: '700'}}>
eamon.white
</Text>
</View>
</View>
</View>
</View>
<View style={{flex: 0, marginBottom: 5, backgroundColor: '#e6fffe'}}>
<Text
style={{
width: 280,
flex: 0,
backgroundColor: '#e6fffe',
paddingLeft: 5,
borderWidth: 0,
borderRadius: 4,
color: '#000',
fontSize: 14,
}}>
{this.state.messageFromSender}
</Text>
</View>
</ScrollView>
</View>
<View style={{flex: 1}} onLayout={(event) => {
this.setState({height: event.nativeEvent.layout.height});
}}>
<TouchableWithoutFeedback onPress={Keyboard.dismiss}>
<View style={{ flexDirection: 'column', flex: 1 }}>
<Text
style={{
flex: 0,
width: Dimensions.get('window').width,
color: 'white',
fontWeight: '700',
marginTop: 5,
marginBottom: 5
}}>
Date(s) Needed:
</Text>
{this.showCalendar()}
</View>
</TouchableWithoutFeedback>
<View style={{ flex: 0, marginBottom: 10, justifyContent: 'center', flexDirection: 'column', marginTop: 0 }}>
<TextInput
style={{
width: 280,
borderColor: 'gray',
borderWidth: 1,
backgroundColor: '#ffffff',
paddingLeft: 5,
borderRadius: 4,
height: this.state.height - 313
}}
onChangeText={text => this.setState({ message: text })}
value={this.state.message}
multiline={true}
numberOfLines={2}
onFocus={this.animateUp}
placeholder='Type a message...'
/>
</View>
</View>
<View style={{ flex: 0.1, borderRadius: 4, borderWidth: 0, marginBottom: 10 }}>
<TouchableOpacity
activeOpacity={1}
style={{
backgroundColor: this.state.rentButtonBackground,
flex: 1,
justifyContent: 'center',
alignItems: 'center',
width: 280,
borderRadius: 4,
borderWidth: 0,
}}
onPress={() => {
}}>
<Text
style={{
backgroundColor: this.state.rentButtonBackground,
textAlign: 'center',
color: 'white',
fontWeight: '900',
fontSize: 18,
borderRadius: 4,
borderWidth: 0,
}}>
RESPOND
</Text>
</TouchableOpacity>
</View>
<View style={{ flex: 0.1, borderRadius: 4, borderWidth: 0, marginBottom: 10 }}>
<TouchableOpacity
activeOpacity={1}
style={{
backgroundColor: this.state.rentButtonBackground,
flex: 1,
justifyContent: 'center',
alignItems: 'center',
width: 280,
borderRadius: 4,
borderWidth: 0,
}}
onPress={() => {
}}>
<Text
style={{
backgroundColor: this.state.rentButtonBackground,
textAlign: 'center',
color: 'white',
fontWeight: '900',
fontSize: 18,
borderRadius: 4,
borderWidth: 0,
}}>
ACCEPT
</Text>
</TouchableOpacity>
</View>
<View style={{ flex: 0.1, borderRadius: 4, borderWidth: 0 }}>
<TouchableOpacity
activeOpacity={1}
style={{
backgroundColor: this.state.rentButtonBackground,
flex: 1,
justifyContent: 'center',
alignItems: 'center',
width: 280,
borderRadius: 4,
borderWidth: 0,
}}
onPress={() => {
}}>
<Text
style={{
backgroundColor: this.state.rentButtonBackground,
textAlign: 'center',
color: 'white',
fontWeight: '900',
fontSize: 18,
borderRadius: 4,
borderWidth: 0,
}}>
DECLINE
</Text>
</TouchableOpacity>
</View>
</View>
</Animated.View>
Animations:
animateUp = () => {
Animated.parallel([
Animated.timing(this.state.yPosition, {
toValue: -120,
duration: 300,
}),
Animated.timing(this.state.yPositionPositive, {
toValue: 120,
duration: 300,
})
]).start();
}
Animated.parallel([
Animated.timing(this.state.yPosition, {
toValue: 0,
duration: 1,
}),
Animated.timing(this.state.yPositionPositive, {
toValue: 0,
duration: 1,
})
]).start()
It starts out like this:
Each time the keyboard opens and closes, and the animation happens, pushing the top of the modal off the screen, the ScrollView shrinks a little - until it ends up looking like this:
Any suggestions would be great.

If you need to animate a view when the keyboard opens, use KeyboardAvoidingView:
https://facebook.github.io/react-native/docs/keyboardavoidingview

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Edit:
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import {
View,
ImageBackground,
Text,
StyleSheet,
Image,
KeyboardAvoidingView,
TextInput,
TouchableOpacity
} from "react-native";
import React from "react";
import { AntDesign } from "#expo/vector-icons";
import { Feather } from "#expo/vector-icons";
export default function Login() {
return (
<View>
<ImageBackground
style={styles.backgroundImage}
source={require("../assets/bg_image.png")}
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<View style={styles.container}>
<Image source={require("../assets/ic_logo.png")} />
<Text style={styles.welcomeText}>Welcome to SMACC</Text>
<KeyboardAvoidingView behavior="position">
<View style={styles.loginInfo}>
<View style={styles.inputField}>
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<View style={styles.inputText}>
<AntDesign style={styles.icon} name="user" />
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</View>
<View
style={{
borderBottomColor: "#999999",
borderBottomWidth: 1
// marginTop: 12.5
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<View style={styles.inputField}>
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<View style={styles.inputText}>
<Feather style={styles.icon} name="lock" />
<TextInput placeholder="Enter Password Here" />
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</View>
<View style={styles.loginButton}>
<TouchableOpacity>
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</TouchableOpacity>
</View>
</View>
</KeyboardAvoidingView>
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container: {
flex: 1,
flexDirection: "column",
justifyContent: "center",
alignItems: "center"
},
backgroundImage: {
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height: "100%"
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welcomeText: {
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fontSize: 15,
fontFamily: "Roboto-Medium"
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shadowColor: "#000",
shadowOffset: { width: 0, height: 1 },
shadowOpacity: 0.8,
shadowRadius: 2,
elevation: 5,
borderRadius: 5,
height: 165,
width: 253
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inputField: {
flex: 1,
paddingTop: 10,
marginLeft: 20,
//fontSize: 10,
color: "#999999",
fontFamily: "Roboto-Medium"
},
inputText: {
flexDirection: "row",
//flex:0.5,
//marginLeft: 20,
fontSize: 12,
color: "#000000",
fontFamily: "Roboto-Medium"
},
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fontSize: 12
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fontFamily: "Roboto-Medium",
fontSize: 12,
color: "#333333"
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icon: {
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}
});
Try this as inputText style
inputText: {
flexDirection: 'row',
justifyContent:'space-between',
alignItems:'center',
fontSize: 12,
color: '#000000',
fontFamily: 'Roboto-Medium',
},
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Can you try adding display: 'flex' to the css and see if that works?
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