問題 在反應原生和JavaScript中,我正在編寫一個應用程序。加載字體的按鈕佔用了一半的屏幕,而實際的應用佔用了另一半。我想知道如何讓按鈕佔據頂部,然後讓應用程序的其他部分渲染得更大。幫助會很棒!格式在JavaScript中無法正常工作
代碼
import React, { Component } from 'react';
import { StyleSheet, Text, View, Image, TextInput, ScrollView, TouchableHighlight, Button } from 'react-native';
import { Font } from 'expo';
var fontLoaded = false;
export default class App extends React.Component {
state = {
fontLoaded: false,
};
componentDidMount() {
Expo.Font.loadAsync({
'Cabin-Regular-TTF': require('./Cabin-Regular-TTF.ttf'),
});
}
constructor(props) {
super(props);
this.state = { postInput: ""}
}
render() {
return (
<View style={styles.container}>
<View style={styles.container}>
<View style={{width: 1, height: 30, backgroundColor: '#e8e8e8'}} />
<Button
onPress={() => this.setState({ fontLoaded: true })}
title="Press Me To Load the App After 15 Seconds!"
color="#fe8200"
accessibilityLabel="Wait 15 seconds and then press me to load the font!"
/>
</View>
{this.state.fontLoaded ? (
<View style={styles.container}>
<Text style={{ fontFamily: 'Cabin-Regular-TTF', fontSize: 16 }}>
Whats on your mind? Create a post!
</Text>
<TextInput
style={{height:40, width: 320, borderColor: '#303030', borderWidth: 1}}
onChangeText={(postInput)=>this.setState({postInput})}
value={this.state.postInput}
/>
<Button
title=" + "
color="#fe8200"
accessibilityLabel="Wait 15 seconds and then press me to load the font!"
/>
<ScrollView>
<View style={{width: 1, height: 6, backgroundColor: '#e8e8e8'}} />
<View style={{width: 300, height: 250, backgroundColor: '#1daff1'}} />
<View style={{width: 300, height: 40, backgroundColor: '#147aa8'}} />
<View style={{width: 1, height: 6, backgroundColor: '#e8e8e8'}} />
<View style={{width: 300, height: 250, backgroundColor: '#1daff1'}} />
<View style={{width: 300, height: 40, backgroundColor: '#147aa8'}} />
<View style={{width: 1, height: 6, backgroundColor: '#e8e8e8'}} />
</ScrollView>
</View>) : (null) }
</View>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: '#e8e8e8',
alignItems: 'center',
justifyContent: 'center'
},
});
截圖
在SO上,您應該嘗試**自己編寫代碼**。後** [做更多的研究](//meta.stackoverflow.com/questions/261592)**如果你有問題,你可以**發佈你已經嘗試**與清楚的解釋是什麼是'工作**並提供** [最小,完整和可驗證示例](// stackoverflow.com/help/mcve)**。 – Rob