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December 22, 2015 03:56
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TabBarAndroid
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| import React, { | |
| Component, | |
| Navigator, | |
| View, | |
| Text, | |
| Image, | |
| TouchableOpacity, | |
| StyleSheet | |
| } from 'react-native'; | |
| import assets from './assets'; | |
| import buildStyleInterpolator from 'buildStyleInterpolator'; | |
| export default class TabBarNavigator extends Component { | |
| constructor(props) { | |
| super(props); | |
| const { views } = props; | |
| this.routeStack = []; | |
| Object.keys(views).map((key) => this.routeStack.push(views[key])) | |
| this.state = { | |
| activeTab: this.routeStack[0] | |
| } | |
| } | |
| componentDidMount() { | |
| const { didFocus, willFocus } = this.props; | |
| this.navigator.navigationContext.addListener('didfocus', e => { | |
| if(typeof didfocus == 'function') { | |
| didFocus(e.currentTarget.currentRoute); | |
| } | |
| }); | |
| } | |
| _switchTab(activeTab) { | |
| let stack = this.navigator.getCurrentRoutes(); | |
| for(i in stack) { | |
| if(stack[i].index === activeTab.index) { | |
| this.navigator.jumpTo(stack[i]); | |
| break ; | |
| } | |
| } | |
| this.setState({ activeTab }); | |
| } | |
| _configureScene() { | |
| return { | |
| gestures: null, | |
| springFriction: 26, | |
| springTension: 1000, | |
| defaultTransitionVelocity: 1, | |
| animationInterpolators: { | |
| into: buildStyleInterpolator({ | |
| opacity: { | |
| from: 0, | |
| to: 1, | |
| min: 1, | |
| max: 1, | |
| type: 'linear', | |
| extrapolate: false, | |
| round: 0, | |
| }, | |
| }), | |
| out: buildStyleInterpolator({ | |
| opacity: { | |
| from: 1, | |
| to: 0, | |
| min: 0, | |
| max: 0, | |
| type: 'linear', | |
| extrapolate: false, | |
| round: 0, | |
| }, | |
| }), | |
| }, | |
| } | |
| } | |
| _renderScene(route, navigator) { | |
| const { action, state } = this.props; | |
| let Comp = route.component; | |
| return ( | |
| <Comp | |
| action={action} | |
| state={state} /> | |
| ); | |
| } | |
| render() { | |
| const { views, action, state } = this.props | |
| return ( | |
| <Navigator | |
| ref={(navigator) => this.navigator = navigator} | |
| initialRoute={this.routeStack[4]} | |
| initialRouteStack={this.routeStack} | |
| navigationBar={( | |
| <View style={styles.tabbarWrapper}> | |
| {Object.keys(views).map((key) => { | |
| if(views[key].title) { | |
| return ( | |
| <TouchableOpacity onPress={this._switchTab.bind(this, views[key])} activeOpacity={1} key={"tabbar.items"+key} style={styles.tabbarItem}> | |
| <Image source={assets[views[key].icon]} style={styles.tabbarIcon} /> | |
| <Text style={styles.tabbarItemText}>{views[key].title}</Text> | |
| </TouchableOpacity> | |
| ) | |
| }else { | |
| return ( | |
| <TouchableOpacity onPress={this._switchTab.bind(this, views[key])} activeOpacity={1} key={"tabbar.items"+key} style={styles.tabbarItem}> | |
| <Image source={assets[views[key].icon]} style={styles.tabbarIconLg} /> | |
| </TouchableOpacity> | |
| ); | |
| } | |
| }) | |
| } | |
| </View> | |
| )} | |
| configureScene={this._configureScene} | |
| renderScene={this._renderScene.bind(this)} /> | |
| ); | |
| } | |
| } | |
| const styles = StyleSheet.create({ | |
| container: { | |
| flex: 1, | |
| }, | |
| tabbarWrapper: { | |
| flexDirection: 'row', | |
| height: 50, | |
| justifyContent: 'space-between', | |
| borderTopWidth: 1, | |
| borderTopColor: '#EFEFEF', | |
| }, | |
| tabbarItem: { | |
| flex: 1, | |
| alignItems: 'center', | |
| justifyContent: 'center', | |
| }, | |
| tabbarItemText: { | |
| marginTop: 5, | |
| color: '#999999', | |
| fontSize: 14, | |
| fontWeight: '300' | |
| }, | |
| tabbarIcon: { | |
| height: 20, | |
| width: 20, | |
| }, | |
| tabbarIconLg: { | |
| height: 49, | |
| width: 49, | |
| }, | |
| }) |
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