iOS 选项卡
属性
style View#style
例子
'use strict';var React = require('react-native');var { StyleSheet, TabBarIOS, Text, View, } = React;var TabBarExample = React.createClass({ statics: { title: '<TabBarIOS>', description: 'Tab-based navigation.' }, getInitialState: function() { return { selectedTab: 'redTab', notifCount: 0, presses: 0, }; }, _renderContent: function(color: string, pageText: string) { return ( <View style={[styles.tabContent, {backgroundColor: color}]}> <Text style={styles.tabText}>{pageText}</Text> <Text style={styles.tabText}>{this.state.presses} re-renders of the More tab</Text> </View> ); }, render: function() { return ( <TabBarIOS> <TabBarIOS.Item title="Blue Tab" selected={this.state.selectedTab === 'blueTab'} onPress={() => { this.setState({ selectedTab: 'blueTab', }); }}> {this._renderContent('#414A8C', 'Blue Tab')} </TabBarIOS.Item> <TabBarIOS.Item systemIcon="history" badge={this.state.notifCount > 0 ? this.state.notifCount : undefined} selected={this.state.selectedTab === 'redTab'} onPress={() => { this.setState({ selectedTab: 'redTab', notifCount: this.state.notifCount + 1, }); }}> {this._renderContent('#783E33', 'Red Tab')} </TabBarIOS.Item> <TabBarIOS.Item systemIcon="more" selected={this.state.selectedTab === 'greenTab'} onPress={() => { this.setState({ selectedTab: 'greenTab', presses: this.state.presses + 1 }); }}> {this._renderContent('#21551C', 'Green Tab')} </TabBarIOS.Item> </TabBarIOS> ); }, });var styles = StyleSheet.create({ tabContent: { flex: 1, alignItems: 'center', }, tabText: { color: 'white', margin: 50, }, });module.exports = TabBarExample;