118 lines
4.3 KiB
JavaScript
118 lines
4.3 KiB
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @format
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* @flow strict-local
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*/
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'use strict';
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const React = require('react');
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const ReactNative = require('react-native');
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const {StyleSheet, TabBarIOS, Text, View} = ReactNative;
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const base64Icon =
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'data:image/png;base64,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';
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type Props = $ReadOnly<{||}>;
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type State = {|
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selectedTab: string,
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notifCount: number,
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presses: number,
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|};
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class TabBarExample extends React.Component<Props, State> {
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state = {
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selectedTab: 'redTab',
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notifCount: 0,
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presses: 0,
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};
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_renderContent = (color: string, pageText: string, num?: number) => {
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return (
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<View style={[styles.tabContent, {backgroundColor: color}]}>
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<Text style={styles.tabText}>{pageText}</Text>
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<Text style={styles.tabText}>
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{num} re-renders of the {pageText}
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</Text>
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</View>
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);
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};
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render() {
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return (
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<TabBarIOS
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unselectedTintColor="yellow"
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tintColor="white"
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unselectedItemTintColor="red"
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barTintColor="darkslateblue">
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<TabBarIOS.Item
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title="Blue Tab"
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icon={{uri: base64Icon, scale: 3}}
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selected={this.state.selectedTab === 'blueTab'}
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onPress={() => {
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this.setState({
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selectedTab: 'blueTab',
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notifCount: this.state.notifCount + 1,
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});
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}}>
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{this._renderContent('#414A8C', 'Blue Tab', this.state.notifCount)}
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</TabBarIOS.Item>
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<TabBarIOS.Item
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systemIcon="history"
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badge={this.state.notifCount > 0 ? this.state.notifCount : undefined}
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badgeColor="black"
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selected={this.state.selectedTab === 'redTab'}
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onPress={() => {
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this.setState({
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selectedTab: 'redTab',
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notifCount: this.state.notifCount + 1,
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});
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}}>
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{this._renderContent('#783E33', 'Red Tab', this.state.notifCount)}
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</TabBarIOS.Item>
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<TabBarIOS.Item
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icon={require('./flux.png')}
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selectedIcon={require('./relay.png')}
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renderAsOriginal
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title="More"
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selected={this.state.selectedTab === 'greenTab'}
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onPress={() => {
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this.setState({
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selectedTab: 'greenTab',
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presses: this.state.presses + 1,
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});
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}}>
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{this._renderContent('#21551C', 'Green Tab', this.state.presses)}
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</TabBarIOS.Item>
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</TabBarIOS>
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);
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}
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}
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const styles = StyleSheet.create({
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tabContent: {
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flex: 1,
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alignItems: 'center',
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},
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tabText: {
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color: 'white',
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margin: 50,
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},
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});
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exports.title = '<TabBarIOS>';
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exports.description = 'Tab-based navigation.';
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exports.displayName = 'TabBarExample';
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exports.examples = [
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{
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title: 'Simple tab navigation',
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render: function(): React.Element<typeof TabBarExample> {
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return <TabBarExample />;
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},
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},
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];
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