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React native Flatlist doesn't scroll

I have an weather app in react native that uses react-native-app-intro-slider that is basically a vertical FlatList. This is my App render
return (
<AppIntroSlider style = {{backgroundColor:'#4c669f'}}
renderItem = {_renderItem}
data = {dataToRender}
showDoneButton = {false}
showPrevButton = {false}
showNextButton = {false}/>
)
And the Slider items that i'm rendering look like this
_renderItem = ( {item} ) => {
return (
<View style={{flex:1}}>
<Text style={{fontSize:20, marginTop:20, color:'white',fontSize:25, alignSelf:'center'}}>{item.name}</Text>
<View style={{ flexDirection:'row', marginTop:15, alignItems:'center', justifyContent:'center'}}>
<Image source={{uri: 'http://openweathermap.org/img/wn/' + item.icon + '#2x.png'}} style={{width:90, height:90}}/>
<Text style={{color:'white', fontSize:60}}>{`${_.round(item.temp)}°C`}</Text>
</View>
<View>
<Text style={{alignSelf:'center', justifyContent:'center', color:'white', fontSize:20}}>{item.clouds}</Text>
<View style={{display:'flex', alignItems:'flex-start', marginLeft:40 }}>
<View style={{ marginTop:40, flexDirection:'row'}}>
<Icon name='wind' size={28}/>
<Text style={{marginLeft:5, fontSize:22, color:'white'}}>{item.wind} km/h</Text>
</View>
<View style={{ marginTop:10, flexDirection:'row'}}>
<Icon name='temperature-low' size={28} />
<Text style={{marginLeft:5, fontSize:22, color:'white'}}>{_.round(item.temp_min,1)} °C</Text>
</View>
<View style={{ marginTop:10, flexDirection:'row' }}>
<Icon name='temperature-high' size={28} />
<Text style={{marginLeft:5, fontSize:22, color:'white'}}>{_.round(item.temp_max,1)} °C</Text>
</View>
<View style={{ marginTop:10, flexDirection:'row' }}>
<Icon name='compress-alt' size={28} />
<Text style={{marginLeft:5, fontSize:22, color:'white'}}>{item.air_pressure} hPa</Text>
</View>
</View>
</View>
<View>
<FlatList
data={dataToRender16}
renderItem={renderFlatListItem}/>
</View>
</View>
);
}
And the issue is that the FlatList in the rendered item (in the second code snippet) is not scrolling down, I've tried changing some styles but none of that worked

First of your dataToRender16 must have some unique id ,and you must add keyExtractor to your FlatList.
checkout the following example:
<FlatList
keyExtractor={(item, index) => item.id}
data={dataItems}
renderItem={itemData => (
<ItemComponent
id={itemData.item.id}
onDelete={removeItemHandler}
title={itemData.item.value}
/>
)}
/>

Adding flex:1 to styles of the that FlatList is netsted is solved the issue
<View style={{flex:1, alignItems:'center', paddingTop:50}}>
<FlatList
data={dataToRender16 }
renderItem={renderFlatListItem}/>
</View>

fix icon direction when change language

i use the native base components. when use the icon in item area by input, when change language system icon direction change. there is way to fix icon direction ?
<View style={LoginStyle.MainViewS}>
<View style={LoginStyle.DataView}>
<Item style={LoginStyle.ItemS} >
<Input placeholder="username" style={LoginStyle.InputS} />
</Item >
<Item style={LoginStyle.ItemS} >
<Icon name='checkmark-circle' style={{ color: 'green', }} />
<Input placeholder="password" style={LoginStyle.InputS} />
</Item>
<TouchableOpacity style={LoginStyle.TouchableS} onPress={() => Actions.register()} >
<Text style={LoginStyle.TouchableTS} >register</Text>
</TouchableOpacity>
<TouchableOpacity style={LoginStyle.TouchableS} onPress={() => Actions.forgetpass()} >
<Text style={LoginStyle.TouchableTS}>forgetpass</Text>
</TouchableOpacity>
<TouchableOpacity style={LoginStyle.TouchableBS} onPress={() => Actions.index()}>
<Text style={LoginStyle.ToucableBTS}>login</Text>
</TouchableOpacity>
</View>
</View>

What is the style of LoginStyle.InputS and LoginStyle.ItemS?
Try adding:
{ position: 'absolute', top: 0, right: 0 }
to the LoginStyle.InputS
<Item style={LoginStyle.ItemS} >
<Icon name='checkmark-circle' style={{ color: 'green', }} />
<Input placeholder="password" style={{...LoginStyle.InputS, position:'absolute', top:0, right:0}} />
</Item>

checkboxes not changing react native elements

Hi I am doing a form like the component with checkboxes on react native that marks if the user is female or male, but I can't make it work it appears and looks like I want but I can't make the mark change from one option to the other one nor can I pass the value to submit
any help is appreciated
Note: that I am using the library react-native-elements for the <CheckBox /> component.
this is my code
import React, { useContext,useState} from 'react';
import {
StyleSheet,
Text,
View,
TextInput,
TouchableOpacity,
ScrollView,
} from 'react-native';
import MyDatePicker from './MyDatePicker';
import { CheckBox } from 'react-native-elements';
const PersonalForm = ({onSubmit, errorMessage}) => {
const [vName, setvName] = useState('');
const [vSecondName, setvSecondName] = useState('');
const [selectedValue, setSelectedValue] = useState(true);
return (
<ScrollView>
<View style={styles.buttonContainer}>
<View style={styles.inputContainer}>
<TextInput style={styles.inputs}
placeholder="Nombre"
underlineColorAndroid='transparent'
onChangeText={newvName => setvName(newvName)}
value={vName}
autoCorrect={false}
autoCapitalize='characters'
/>
</View>
<View style={styles.inputContainer}>
<TextInput style={styles.inputs}
placeholder="Segundo nombre"
underlineColorAndroid='transparent'
onChangeText={newvSecondName => setvSecondName(newvSecondName)}
value={vSecondName}
autoCorrect={false}
autoCapitalize='characters'
/>
</View>
</View>
<CheckBox
containerStyle={styles.checkbox}
textStyle={styles.checkboxTxt}
uncheckedColor={'#b3b4b5'}
checkedColor={"#911830"}
key={4}
title="Male"
value={4}
value="4"
checkedIcon="stop"
checked={selectedValue}
onChange={()=>setSelectedValue(true)}
/>
<CheckBox
containerStyle={styles.checkbox}
textStyle={styles.checkboxTxt}
uncheckedColor={'#b3b4b5'}
checkedColor={"#911830"}
key={3}
title="Female"
value={3}
value="3"
checkedIcon="stop"
checked={!selectedValue}
onChange={()=>setSelectedValue(false)}
/>
<View>
<MyDatePicker />
</View>
<View style={styles.buttonContainer2}>
<TouchableOpacity
style={ styles.logout}
onPress={() => onSubmit(vName, vSecondName, vGender, vEmail)}
>
<Text style={styles.loginText}>GUARDAR</Text>
</TouchableOpacity>
</View>
</ScrollView>
);
};

Your are using the callback wrong. As mentioned in the docs, the callback you are looking for is onPress instead of onChange.
Change it to this:
<CheckBox
containerStyle={styles.checkbox}
textStyle={styles.checkboxTxt}
uncheckedColor={'#b3b4b5'}
checkedColor={"#911830"}
key={4}
title="Male"
value={4}
value="4"
checkedIcon="stop"
checked={selectedValue}
onPress={()=>setSelectedValue(true)}
/>
<CheckBox
containerStyle={styles.checkbox}
textStyle={styles.checkboxTxt}
uncheckedColor={'#b3b4b5'}
checkedColor={"#911830"}
key={3}
title="Female"
value={3}
value="3"
checkedIcon="stop"
checked={!selectedValue}
onPress={()=>setSelectedValue(false)}
/>

React Native Keyboard Avoiding view with Native base

I'm using native base in screen, and I'm trying to add but it is not working properly as keyboard still hides the text inputs
render() {
return (
<Container>
<Header style={styles.header}>
<Left style={styles.left}>
<TouchableOpacity
style={styles.backArrow}
onPress={() => this.props.navigation.navigate("Welcome")}
>
<FontAwesome
name={I18nManager.isRTL ? "angle-right" : "angle-left"}
size={30}
color="#6f6f6f"
/>
</TouchableOpacity>
</Left>
<Body style={styles.body} />
<Right style={styles.right} />
</Header>
<View style={styles.signuplogosec}>
<Image source={Logo} style={styles.signuplogostyle} />
</View>
<KeyboardAvoidingView behavior="padding" enabled>
<Form style={styles.form}>
<Item rounded style={styles.inputStyle}>
<Input
//placeholderTextColor="#ffffff"
textAlign={I18nManager.isRTL ? "right" : "left"}
placeholder="First Name"
onChangeText={(first_name) => { this.setState({ first_name }) }}
style={styles.inputmain}
/>
</Item>
<Item rounded style={[styles.inputStyle,, { marginTop: 10 }]}>
<Input
//placeholderTextColor="#ffffff"
textAlign={I18nManager.isRTL ? "right" : "left"}
placeholder="Last Name"
style={styles.inputmain}
onChangeText={(last_name) => { this.setState({ last_name }) }}
/>
</Item>
<Item rounded style={[styles.inputStyle,, { marginTop: 10 }]}>
<Input
//placeholderTextColor="#ffffff"
textAlign={I18nManager.isRTL ? "right" : "left"}
placeholder="Email"
style={styles.inputmain}
autoCapitalize='none'
onChangeText={(email) => { this.setState({ email }) }}
/>
</Item>
<Item rounded style={[styles.inputStyle, { marginTop: 10 }]}>
<Input
//placeholderTextColor="#ffffff"
placeholder="Password"
secureTextEntry={true}
textAlign={I18nManager.isRTL ? "right" : "left"}
style={styles.inputmain}
onChangeText={(password) => { this.setState({ password }) }}
/>
</Item>
<Item rounded style={[styles.inputStyle, { marginTop: 10 }]}>
<Input
//placeholderTextColor="#ffffff"
placeholder="Confirm Password"
secureTextEntry={true}
textAlign={I18nManager.isRTL ? "right" : "left"}
style={styles.inputmain}
onChangeText={(confirm_password) => { this.setState({ confirm_password }) }}
/>
</Item>
<TouchableOpacity
info
style={styles.signInbtn}
onPress={this.signIn}
>
<Text autoCapitalize="words" style={styles.buttongetstarted}>
Sign Up
</Text>
</TouchableOpacity>
</Form>
</KeyboardAvoidingView>
<View style={styles.signupbottomView}>
<TouchableOpacity
style={styles.fbButton}
onPress={() => alert("Facebook button Clicked")}
>
<View iconRight style={styles.fbview}>
<Ionicons name="logo-linkedin" size={30} color="white" />
<Text autoCapitalize="words" style={styles.fbButtonText}>
Sign Up with LinkedIn
</Text>
</View>
</TouchableOpacity>
<TouchableOpacity
style={styles.signupbottomText}
onPress={()=>{this.props.navigation.navigate('SignIn')}}>
<Text style={styles.bottomText01}>
Do you have an account?{" "}
<Text style={styles.bottomText02}>Sign In</Text>
</Text>
</TouchableOpacity>
</View>
</Container>
);
}
}
export default SignUpScreen;
I have tried to add different views inside form tag but it is still not working, I have tried to create different form tags but failed.
My requirement is simple I want to use the KeyboardAvoidingView inside Native base components, I'm wrong some where but I don't know where

Just import KeyboardAvoidingView from react-native using with
behavior='position'
import React, {Component} from 'react';
import {StyleSheet, TextInput, View, KeyboardAvoidingView} from 'react-native';
export default class App extends Component {
render() {
return (
<View>
<KeyboardAvoidingView behavior='position'>
<TextInput>Sample</TextInput>
<TextInput>Sample</TextInput>
<TextInput>Sample</TextInput>
<TextInput>Sample</TextInput>
<TextInput>Sample</TextInput>
<TextInput>Sample</TextInput>
<TextInput>Sample</TextInput>
</KeyboardAvoidingView>
</View>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: '#f5f5f5',
}

import { Image,KeyboardAvoidingView } from 'react-native';
import { Container, Content, Text, Card, CardItem, Button, Icon, Form, Item, Input, Spinner } from 'native-base';
//https://github.com/GeekyAnts/NativeBase/issues/1163
<KeyboardAvoidingView behavior="padding" style={{ flex: 1 }}>
<Content>...</Content>
</KeyboardAvoidingView>;

Whole text is copied to the right side in react native code

Now it is on the left side. How to copy the same text to the right even
and how can I style the button and style the text input more colorful and fonts bigger?
Here the example of what I want:
Here is what I have tried
<View style={StyleSheet.row}>
<Text>GAME 10</Text>
<TextInput
placeholder="GAME 10"
underlineColorAndroid="transparent"
style={StyleSheet.TextInputStyleClass}
/>
</View>
<View style={StyleSheet.row}>
<Text>TOTAL TEAM 1:</Text>
<TextInput
placeholder="TOTAL"
underlineColorAndroid="transparent"
style={StyleSheet.TextInputStyleClass}
/>
</View>
<TouchableOpacity onPress={this._onButtonPress}>
<Text>ADD</Text>
</TouchableOpacity>

You can move the text into a component, then just render the component twice:
export default class Text extends React.Component {
render() {
return (
<View>
<View style={StyleSheet.row}>
<Text>
GAME 10
</Text>
<TextInput placeholder="GAME 10" underlineColorAndroid='transparent' style={StyleSheet.TextInputStyleClass} />
</View>
<View style={StyleSheet.row}>
<Text>
TOTAL TEAM 1:
</Text>
<TextInput
placeholder="TOTAL"
underlineColorAndroid='transparent'
style={StyleSheet.TextInputStyleClass}
/>
</View>
<TouchableOpacity onPress={this._onButtonPress}>
<Text>ADD</Text>
</TouchableOpacity>
</View>
)
}
}
class Parent extends React.Component {
render() {
return (
<View>
<View className="left">
<Text />
</View>
<View className="right">
<Text />
</View>
</View>
)
}
}