我在讓 React Navigation 實際轉換螢屏時遇到問題。我以前成功地使用過它,這次我無法弄清楚我的問題是什么。我點擊了我的按鈕,沒有發生任何轉換。我認為這可能是行內 onPress 沒有運行的問題......它必須在主按鈕中嗎?或者 App.js 上的行內代碼是否覆寫 MainButton.js 中的任何內容。
另外...NarScreen 是我想要到達的螢屏。
檔案 1:App.js
import 'react-native-gesture-handler';
import React from 'react';
import { View, Text, StyleSheet, Image } from 'react-native';
import { NavigationContainer } from '@react-navigation/native';
import { createStackNavigator } from '@react-navigation/stack';
import { color } from 'react-native-reanimated';
import MainButton from './components/MainButton';
import NarScreen from './screens/NarScreen.js'
function HomeScreen({ navigation }) {
return(
<View style={styles.background}>
<View style={styles.logo}>
<Image source={require('./components/HNS1.png')} style={styles.image} resizeMode='contain' />
</View>
<View style={styles.buttons}>
<MainButton onPress={() => navigation.navigate('Nar')}>NAR Test</MainButton>
<MainButton>Tripoli Test</MainButton>
</View>
</View>
);
}
function Nar({ navigation }) {
return(
<NarScreen />
)
}
const Stack = createStackNavigator();
function App() {
return(
<NavigationContainer>
<Stack.Navigator>
<Stack.Screen name="Home" component={HomeScreen} />
<Stack.Screen name="Nar" component={Nar} />
</Stack.Navigator>
</NavigationContainer>
);
}
const styles = StyleSheet.create({
background: {
backgroundColor: '#00629B',
flex: 1,
},
buttons: {
marginTop: "20%",
marginLeft: 10,
},
image: {
width: '80%',
height: 300,
borderRadius: 20,
},
logo: {
borderRadius: 200,
marginTop: '30%',
alignItems: 'center'
},
});
export default App;
檔案 2:NarScreen.js
import React from 'react';
import { View, Text, Button, StyleSheet } from 'react-native';
const NarScreen = props => {
return(
<View>
<Text>BigScreen!</Text>
</View>
)
}
export default NarScreen;
檔案 3:MainButton.js
import React from 'react';
import {View, Text, StyleSheet, TouchableOpacity, } from 'react-native';
const MainButton = props => {
return <TouchableOpacity>
<View style={styles.button}>
<Text style={styles.buttonText}>{props.children}</Text>
</View>
</TouchableOpacity>
}
const styles = StyleSheet.create({
button: {
backgroundColor: "#FCD757",
paddingVertical: 30,
paddingHorizontal: 30,
height: 100,
width: 300,
marginTop: "10%",
borderRadius: 10,
marginLeft: '12%',
justifyContent: 'space-between',
},
buttonText: {
color: 'black',
fontSize: 26,
textAlign: 'center',
}
})
export default MainButton;
uj5u.com熱心網友回復:
在 MainButton.js 檔案中,您沒有處理 onPress 事件。將其添加到可觸摸的不透明度。
const MainButton = props => {
return <TouchableOpacity onPress={props.onPress}>
<View style={styles.button}>
<Text style={styles.buttonText}>{props.children}</Text>
</View>
</TouchableOpacity>
}
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標籤:javascript 反应原生 反应导航
