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Merge pull request #6 from clmntcrl/header-component
Header component
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,23 +1,86 @@ | ||
| import React from 'react'; | ||
| import {View, Image, StyleSheet, Text} from 'react-native'; | ||
| import React from "react" | ||
| import { SafeAreaView, ImageBackground, Animated, Easing, Dimensions, StyleSheet, ViewPropTypes } from "react-native" | ||
| import PropTypes from "prop-types" | ||
|
|
||
| const Header = () => { | ||
| return ( | ||
| <View> | ||
| <Image source={require('../res/images/header-back.jpg')} style={{height:125, width:'100%'}} /> | ||
| <Image source={require('../res/images/logo.png')} style={styles.positionLogo} /> | ||
| </View> | ||
| ) | ||
| } | ||
| const windowSize = Dimensions.get("window") | ||
|
|
||
| class Header extends React.Component { | ||
| static propTypes = { | ||
| style: ViewPropTypes.style, | ||
| scrollContentYOffset: PropTypes.number, | ||
| } | ||
| static defaultProps = { | ||
| scrollContentYOffset: 0, | ||
| } | ||
| // Header animation configuration | ||
| static minHeight = 0 | ||
| static maxHeight = 80 | ||
| static deltaAnimationProgressThatDoesNotNeedTiming = 0.5 | ||
| static computeAnimatedProgressValue = ({ scrollContentYOffset }) => | ||
| scrollContentYOffset >= 0 | ||
| ? Math.max(0, 1 - scrollContentYOffset / (Header.maxHeight - Header.minHeight)) | ||
| : 1 + (-scrollContentYOffset * 0.3) / (Header.maxHeight - Header.minHeight) // Bounce | ||
| static animatedHeight = ({ animatedProgress }) => | ||
| Animated.multiply(animatedProgress, Header.maxHeight - Header.minHeight) | ||
| static animatedOpacity = ({ animatedProgress }) => animatedProgress | ||
|
|
||
| constructor(props) { | ||
| super(props) | ||
| this.animatedProgressValue = Header.computeAnimatedProgressValue({ | ||
| scrollContentYOffset: this.props.scrollContentYOffset, | ||
| }) | ||
| this.animatedProgress = new Animated.Value(this.animatedProgressValue) | ||
| } | ||
|
|
||
| componentDidUpdate() { | ||
| const { scrollContentYOffset } = this.props | ||
| const newAnimatedProgressValue = Header.computeAnimatedProgressValue({ scrollContentYOffset }) | ||
| if ( | ||
| Math.abs(this.animatedProgressValue - newAnimatedProgressValue) <= | ||
| Header.deltaAnimationProgressThatDoesNotNeedTiming | ||
| ) { | ||
| this.animatedProgress.setValue(newAnimatedProgressValue) | ||
| } else { | ||
| Animated.timing(this.animatedProgress, { | ||
| toValue: newAnimatedProgressValue, | ||
| duration: 200, | ||
| easing: Easing.out(Easing.quad), | ||
| }).start() | ||
| } | ||
| this.animatedProgressValue = newAnimatedProgressValue | ||
| } | ||
|
|
||
| render() { | ||
| return ( | ||
| <ImageBackground | ||
| source={require("../res/images/header-back.jpg")} | ||
| style={[this.props.styles, styles.container]} | ||
| resizeMode="cover" | ||
| > | ||
| <SafeAreaView style={{ flex: 1 }}> | ||
| <Animated.Image | ||
| source={require("../res/images/logo.png")} | ||
| style={{ | ||
| height: Header.animatedHeight({ animatedProgress: this.animatedProgress }), | ||
| opacity: Header.animatedOpacity({ animatedProgress: this.animatedProgress }), | ||
| }} | ||
| resizeMode="contain" | ||
| /> | ||
| </SafeAreaView> | ||
| </ImageBackground> | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| const styles = StyleSheet.create({ | ||
| positionLogo: { | ||
| width: 80, | ||
| height: 80, | ||
| position: "absolute", | ||
| top: "25%", | ||
| left: "40%" | ||
| } | ||
| }); | ||
| container: { | ||
| position: "absolute", | ||
| top: 0, | ||
| left: 0, | ||
| right: 0, | ||
| alignItems: "center", | ||
| justifyContent: "center", | ||
| }, | ||
| }) | ||
|
|
||
| export default Header |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| import React, { Component } from "react" | ||
| import { SafeAreaView, StyleSheet, ViewPropTypes, ScrollView, View } from "react-native" | ||
| import PropTypes from "prop-types" | ||
|
|
||
| import Header from "./Header" | ||
|
|
||
| export default class ScrollViewWithHeader extends Component { | ||
| static propTypes = { | ||
| style: ViewPropTypes.style, | ||
| children: PropTypes.node, | ||
| navigation: PropTypes.object, // Provide navigation object if header is in navigation stack | ||
| } | ||
|
|
||
| state = { | ||
| offsetY: 0, | ||
| } | ||
|
|
||
| onScroll = ({ nativeEvent }) => | ||
| this.props.navigation | ||
| ? this.props.navigation.setParams({ scrollContentYOffset: nativeEvent.contentOffset.y }) | ||
| : this.setState({ offsetY: nativeEvent.contentOffset.y }) | ||
|
|
||
| render() { | ||
| return ( | ||
| <SafeAreaView style={this.props.style}> | ||
| <ScrollView style={{ flex: 1 }} scrollEventThrottle={16} onScroll={this.onScroll}> | ||
| <View style={{ flex: 1, marginTop: Header.maxHeight }}>{this.props.children}</View> | ||
| </ScrollView> | ||
| {!this.props.navigation && <Header style={styles.header} scrollContentYOffset={this.state.offsetY} />} | ||
| </SafeAreaView> | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| const styles = StyleSheet.create({ | ||
| header: { | ||
| position: "absolute", | ||
| top: 0, | ||
| left: 0, | ||
| right: 0, | ||
| }, | ||
| }) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,81 +1,69 @@ | ||
| import React, { Component } from "react"; | ||
| import { | ||
| StyleSheet, | ||
| Text, | ||
| View, | ||
| Image, | ||
| ScrollView, | ||
| Button | ||
| } from "react-native"; | ||
| import { StackNavigator } from "react-navigation"; | ||
| import React, { Component } from "react" | ||
| import { StyleSheet, Text, View, Image, ScrollView, Button } from "react-native" | ||
|
|
||
| //Component | ||
| import Header from "../../components/Header"; | ||
| import programs from "../../res/data/programs.json"; | ||
| import { Routes } from "."; | ||
| import programs from "../../res/data/programs.json" | ||
| import { Routes } from "." | ||
|
|
||
| import ScrollViewWithHeader from "../../components/ScrollViewWithHeader" | ||
|
|
||
| export default class Programs extends Component { | ||
| render() { | ||
| return ( | ||
| <View style={{ justifyContent: "center", alignItems: "center" }}> | ||
| <ScrollView style={{ width: "100%" }}> | ||
| <View style={{ flex: 1 }}> | ||
| {programs.map(program => ( | ||
| <View key={program.id} style={styles.container}> | ||
| <View key={program.id} style={styles.emission}> | ||
| <Image | ||
| style={styles.logoEmission} | ||
| source={{ uri: program.logo }} | ||
| /> | ||
| <View style={styles.containerDetail}> | ||
| <Text style={styles.programName}>{program.name}</Text> | ||
| <Button | ||
| title="Description" | ||
| onPress={() => | ||
| this.props.navigation.navigate(Routes.programsDetails, { | ||
| programDetail: program | ||
| }) | ||
| } | ||
| /> | ||
| </View> | ||
| render() { | ||
| return ( | ||
| <ScrollViewWithHeader style={{ flex: 1 }} navigation={this.props.navigation}> | ||
| <View style={{ flex: 1 }}> | ||
| {programs.map((program) => ( | ||
| <View key={program.id} style={styles.container}> | ||
| <View key={program.id} style={styles.emission}> | ||
| <Image style={styles.logoEmission} source={{ uri: program.logo }} /> | ||
| <View style={styles.containerDetail}> | ||
| <Text style={styles.programName}>{program.name}</Text> | ||
| <Button | ||
| title="Description" | ||
| onPress={() => | ||
| this.props.navigation.navigate(Routes.programsDetails, { | ||
| programDetail: program, | ||
| }) | ||
| } | ||
| /> | ||
| </View> | ||
| </View> | ||
| </View> | ||
| ))} | ||
| </View> | ||
| </View> | ||
| ))} | ||
| </View> | ||
| </ScrollView> | ||
| </View> | ||
| ); | ||
| } | ||
| </ScrollViewWithHeader> | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| const styles = StyleSheet.create({ | ||
| container: { | ||
| backgroundColor: "#DDD", | ||
| borderRadius: 80, | ||
| marginHorizontal: 20, | ||
| marginVertical: 10 | ||
| }, | ||
| emission: { | ||
| flex: 1, | ||
| flexDirection: "row", | ||
| height: 80 | ||
| }, | ||
| logoEmission: { | ||
| borderRadius: 40, | ||
| height: 80, | ||
| width: 80 | ||
| }, | ||
| containerDetail: { | ||
| flexDirection: "column", | ||
| justifyContent: "space-around", | ||
| flex: 1, | ||
| height: 60 | ||
| }, | ||
| programName: { | ||
| flex: 1, | ||
| textAlign: "center", | ||
| alignItems: "center", | ||
| padding: 20, | ||
| fontWeight: "500" | ||
| } | ||
| }); | ||
| container: { | ||
| backgroundColor: "#DDD", | ||
| borderRadius: 80, | ||
| marginHorizontal: 20, | ||
| marginVertical: 10, | ||
| }, | ||
| emission: { | ||
| flex: 1, | ||
| flexDirection: "row", | ||
| height: 80, | ||
| }, | ||
| logoEmission: { | ||
| borderRadius: 40, | ||
| height: 80, | ||
| width: 80, | ||
| }, | ||
| containerDetail: { | ||
| flexDirection: "column", | ||
| justifyContent: "space-around", | ||
| flex: 1, | ||
| height: 60, | ||
| }, | ||
| programName: { | ||
| flex: 1, | ||
| textAlign: "center", | ||
| alignItems: "center", | ||
| padding: 20, | ||
| fontWeight: "500", | ||
| }, | ||
| }) |
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