我想嚮導航欄添加一個右按鈕來推送視圖。我想在Tab類中做到這一點。我正在使用代碼形式的導航示例,但我無法得到正確的按鈕工作。標籤頁加載罰款,但是當我點擊右側的按鈕,我得到了以下信息:如何在NavigatorIOS中的右鍵添加標籤中的React Native
message: undefined is not an object (evaluating 'this.props.navigator.push')"
主要app.js
'use strict';
var React = require('react-native');
var Tabs = require("./Tabs");
var {AppRegistry} = React;
var App = React.createClass({
render: function() {
return (
<Tabs/>
)
}
});
AppRegistry.registerComponent('App',() => App);
這裏是tabs.js
'use strict';
var React = require('react-native');
var {
NavigatorIOS,
StyleSheet,
TabBarIOS,
Text,
View
} = React;
var TabBarItemIOS = TabBarIOS.Item;
var Search = require("./Search");
var Invites = require("./Invites");
var EmptyPage = React.createClass({
render: function() {
return (
<View style={styles.emptyPage}>
<Text style={styles.emptyPageText}>
{this.props.text}
</Text>
</View>
);
},
});
var TabBarExample = React.createClass({
statics: {
title: '<TabBarIOS>',
description: 'Tab-based navigation.'
},
getInitialState: function() {
return {
selectedTab: 'redTab',
notifCount: 0,
presses: 0,
};
},
render: function() {
return (
<TabBarIOS
selectedTab={this.state.selectedTab}>
<TabBarItemIOS
name="blueTab"
icon={_ix_DEPRECATED('favorites')}
accessibilityLabel="Blue Tab"
selected={this.state.selectedTab === 'blueTab'}
onPress={() => {
this.setState({
selectedTab: 'blueTab',
});
}}>
<NavigatorIOS
style={styles.natigator}
initialRoute={{
component: Search,
title: Search.title,
}}
/>
</TabBarItemIOS>
<TabBarItemIOS
accessibilityLabel="Red Tab"
name="redTab"
icon={_ix_DEPRECATED('history')}
badgeValue={this.state.notifCount ? String(this.state.notifCount) : null}
selected={this.state.selectedTab === 'redTab'}
onPress={() => {
this.setState({
selectedTab: 'redTab',
notifCount: this.state.notifCount + 1,
});
}}>
<NavigatorIOS
style={styles.natigator}
initialRoute={{
component: Invites,
title: Invites.title,
rightButtonTitle: 'New Invite',
onRightButtonPress:() => {
this.props.navigator.push({
title: "test",
component: EmptyPage,
rightButtonTitle: 'Cancel',
onRightButtonPress:() => {this.props.navigator.pop();}
});}
}}
/>
</TabBarItemIOS>
</TabBarIOS>
);
},
});
var styles = StyleSheet.create({
natigator: {
flex: 1,
},
tabContent: {
flex: 1,
alignItems: 'center',
},
tabText: {
color: 'white',
margin: 50,
},
});
// This is needed because the actual image may not exist as a file and
// is used by the native code to load a system image.
// TODO(nicklockwood): How can this fit our require system?
function _ix_DEPRECATED(imageUri) {
return {
uri: imageUri,
isStatic: true,
};
}
module.exports = TabBarExample;
有些東西對導航不正確,我不明白如何加載View和NavigationIOS;看起來我只能使用View或具有導航的類來呈現類,但不能同時使用兩者。
任何幫助表示讚賞。
很確定這是一個範圍問題 - 是不是說this.props.navigation是未定義的? 'this'將引用你的'TabBarExample'組件而不是'NavigatorIOS'。用簡單的例子解決這個問題會更容易。 http://facebook.github.io/react-native/docs/navigatorios.html#content – 2015-03-31 11:23:00