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PullToRefreshListView-android.js
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PullToRefreshListView-android.js
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/*
* A smart pull-down-refresh and pull-up-loadmore react-native listview
* https://github.com/react-native-component/react-native-smart-pull-to-refresh-listview/
* Released under the MIT license
* Copyright (c) 2016 react-native-component <moonsunfall@aliyun.com>
*/
import React, {
PropTypes,
Component,
} from 'react'
import {
View,
ScrollView,
ListView,
StyleSheet,
Text,
Platform,
Dimensions,
} from 'react-native'
//import TimerEnhance from '../react-native-smart-timer-enhance'
import TimerEnhance from 'react-native-smart-timer-enhance'
import { withinErrorMargin, } from './utils'
import constants, {
viewType,
viewState,
refreshViewType,
refreshAnimationDuration,
scrollBounceAnimationDuration,
} from './constants'
import { easeOutCirc, } from './easing'
import RefreshView from './RefreshView'
import AndroidSwipeRefreshLayout from './AndroidSwipeRefreshLayout'
import ListItem from './ListItem'
import FloatSectionHeader from './AndroidFloatSectionHeader'
//temp log code
//import Temp from 'react-native-fs'
const styles = StyleSheet.create({
header: {
justifyContent: 'flex-end',
},
footer: {
justifyContent: 'flex-start',
},
shrink: {
height: 0,
},
marginVertical: {
marginTop: 0,
marginBottom: 0,
marginVertical: 0,
},
paddingVertical: {
paddingTop: 0,
paddingBottom: 0,
paddingVertical: 0,
}
})
const {width: deviceWidth, } = Dimensions.get('window')
const keySeparator = ',';
class PullToRefreshListView extends Component {
static constants = constants
static defaultProps = {
viewType: viewType.scrollView,
pullUpDistance: 50,
pullUpStayDistance: 35,
pullDownDistance: 50,
pullDownStayDistance: 35,
enabledPullUp: true,
enabledPullDown: true,
autoLoadMore: false,
scrollEventThrottle: 16,
dataSource: new ListView.DataSource({
rowHasChanged: (r1, r2) => r1 !== r2,
}),
renderRow: () => null,
renderScrollComponent: props => <ScrollView {...props}/>,
onEndReachedThreshold: StyleSheet.hairlineWidth, //0,
initialListSize: 10,
stickyHeaderIndices: [],
pageSize: 1,
scrollRenderAheadDistance: 1000,
floatSectionHeaderWidth: deviceWidth,
pageTop: 0,
}
static propTypes = {
...ListView.propTypes,
pageTop: PropTypes.number,
renderFloatSectionHeader: PropTypes.func,
floatSectionHeaderWidth: PropTypes.number,
listSectionProps: PropTypes.shape(View.propTypes),
listItemProps: PropTypes.shape(View.propTypes),
renderRowWithVisibility: PropTypes.bool,
viewType: PropTypes.oneOf([
viewType.scrollView,
viewType.listView,
]),
pullUpDistance: PropTypes.number,
pullUpStayDistance: PropTypes.number,
pullDownDistance: PropTypes.number,
pullDownStayDistance: PropTypes.number,
enabledPullUp: PropTypes.bool,
enabledPullDown: PropTypes.bool,
autoLoadMore: PropTypes.bool,
onRefresh: PropTypes.func,
onLoadMore: PropTypes.func,
}
constructor (props) {
super(props)
this.state = {}
let {refresh_none, load_more_none} = viewState
if (props.autoLoadMore && props.viewType == viewType.listView) {
this._onEndReached = () => {
let { refreshing, load_more_none, loading_more,} = viewState
//if (this._refreshState != refreshing && this._loadMoreState == load_more_none) {
if (this._canLoadMore && this._refreshState != refreshing && this._loadMoreState == load_more_none) {
this._loadMoreState = loading_more
this._footer.setState({
pullState: this._loadMoreState,
})
props.onLoadMore && props.onLoadMore()
}
}
}
this._refreshState = refresh_none
this._loadMoreState = load_more_none
this._refreshBackAnimating = false
this._loadMoreBackAnimating = false
this._afterRefreshBacked = false
this._afterLoadMoreBacked = false
this._beginTimeStamp = null
this._beginResetScrollTopTimeStamp = null
this._refreshBackAnimationFrame = null
this._touching = false
this._scrollY = 0
this._lastScrollY = 0
this._fixedScrollY = 0
this._refreshFixScrollY = 0
this._paddingBlankDistance = 0
this._listSectionRefs = {}
this._listItemRefs = {}
this._headerHeight = 0
this._canLoadMore = false
this._autoLoadFooterHeight = 0
}
render () {
return (
<AndroidSwipeRefreshLayout
ref={ component => this._swipeRefreshLayout = component }
style={{flex: 1,}}
enabledPullUp={this.props.enabledPullUp}
enabledPullDown={this.props.enabledPullDown}
onSwipe={this._onSwipe}
onRefresh={this._onRefresh}>
{ this.props.viewType == viewType.scrollView ?
<ScrollView
ref={ component => this._scrollView = component }
{...this.props}
style={[this.props.style, styles.paddingVertical,]}
contentContainerStyle={[this.props.contentContainerStyle, styles.marginVertical,]}
onLayout={this._onLayout}
onContentSizeChange={this._onContentSizeChange}
onResponderGrant={this._onResponderGrant}
onScroll={this._onScroll}
onResponderRelease={this._onResponderRelease}>
{this._renderHeader()}
{this.props.children}
{this._renderFooter()}
</ScrollView> :
<ListView
ref={ component => this._scrollView = component }
{...this.props}
style={[this.props.style, styles.paddingVertical,]}
contentContainerStyle={[this.props.contentContainerStyle, styles.marginVertical,]}
onEndReached={this._onEndReached}
onLayout={this._onLayout}
onContentSizeChange={this._onContentSizeChange}
onResponderGrant={this._onResponderGrant}
onScroll={this._onScroll}
onResponderRelease={this._onResponderRelease}
renderSectionHeader={this._renderSectionHeader}
renderRow={this._renderRow}
renderHeader={this._renderHeader}
renderFooter={this._renderFooter}
renderScrollComponent={ props => <ScrollView ref={ (component) => this._innerScrollView = component } {...props} /> }/> }
{ this.props.renderFloatSectionHeader && this.props.listSectionProps ?
<FloatSectionHeader
ref={ component => this._floatSectionHeader = component }
{...this.props.listSectionProps}
floatSectionHeaderWidth={this.props.floatSectionHeaderWidth}
renderChildren={this.props.renderFloatSectionHeader}/> : null }
</AndroidSwipeRefreshLayout>
)
}
componentDidMount () {
let {renderSectionHeader, listSectionProps, dataSource} = this.props
//android float section header
if (renderSectionHeader && listSectionProps) {
//dataSource.sectionIdentities.length will be equal to 0 using 'beginRefresh'
if (dataSource.sectionIdentities.length == 0) {
return
}
let firstSectionID = dataSource.sectionIdentities[ 0 ]
//set float section header
this._floatSectionHeader.setSectionID(firstSectionID)
this._floatSectionHeader.setState({
hidden: false,
})
}
}
setNativeProps = (props) => {
this._scrollView.setNativeProps(props)
}
beginRefresh = (bounceDisabled) => {
this._swipeRefreshLayout.setNativeProps({
refreshing: true,
})
this._scrollView.setNativeProps({
scrollEnabled: false,
})
//this.requestAnimationFrame(this._resetReverseHeaderLayout)
if (!bounceDisabled) {
this.requestAnimationFrame(this._resetReverseHeaderLayout)
}
else {
//console.log(`beginRefresh onRefresh()`)
this.props.onRefresh && this.props.onRefresh()
}
let {refreshing,} = viewState
this._refreshState = refreshing
this._header.setState({
pullState: this._refreshState,
pullDistancePercent: 1,
})
////force hide footer
//this._footer.setNativeProps({
// style: {
// opacity: 0,
// }
//})
//this.props.onRefresh && this.props.onRefresh() //move to _resetReverseHeaderLayout and _resetRefreshScrollTop
//this._listSectionRefs = {}
//this._listItemRefs = {}
}
endRefresh = (bounceDisabled) => {
this._scrollView.setNativeProps({
scrollEnabled: false
})
let {refresh_none, loaded_all, load_more_none} = viewState
let {pullDownStayDistance, dataSource, renderSectionHeader, listSectionProps,} = this.props
this._refreshState = refresh_none
this._header.setState({
pullState: this._refreshState,
})
this._refreshBackAnimating = true
//if (this._scrollY < pullDownStayDistance) {
if (!bounceDisabled && this._scrollY < pullDownStayDistance) {
this.requestAnimationFrame(this._resetHeaderLayout)
}
else {
//this._swipeRefreshLayout.setNativeProps({
// refreshing: false,
//})
//this._scrollView.setNativeProps({
// scrollEnabled: true,
//})
this._header.setNativeProps({
style: {
height: 0,
}
})
this._headerHeight = 0
//this._scrollView.scrollTo({ y: this._scrollY - pullDownStayDistance, animated: false, })
if (!bounceDisabled) {
this._scrollView.scrollTo({ y: this._scrollY - pullDownStayDistance, animated: false, })
}
this._beginTimeStamp = null
this._refreshBackAnimating = false
this._afterRefreshBacked = true
this._afterDirectRefresh = true
//this._setPaddingBlank()
this._setPaddingBlank(bounceDisabled)
////force show footer
//this._footer.setNativeProps({
// style: {
// opacity: 1,
// }
//})
//reset loadMoreState to load_more_none
if (this._loadMoreState == loaded_all) {
this._loadMoreState = load_more_none
this._footer.setState({
pullState: this._loadMoreState,
pullDistancePercent: 0,
})
}
this._swipeRefreshLayout.setNativeProps({
refreshing: false,
})
this._scrollView.setNativeProps({
scrollEnabled: true,
})
if (renderSectionHeader && listSectionProps) {
this._floatSectionHeader.setState({
hidden: false,
})
let firstSectionID = dataSource.sectionIdentities[ 0 ]
//reset float section header
this._floatSectionHeader.setSectionID(firstSectionID)
}
}
}
endLoadMore = (loadedAll) => {
this._scrollView.setNativeProps({
scrollEnabled: false
})
let {load_more_none, loaded_all} = viewState
let {autoLoadMore} = this.props
if (!loadedAll) {
this._loadMoreState = load_more_none
}
else {
this._loadMoreState = loaded_all
}
this._footer.setState({
pullState: this._loadMoreState,
})
if (!autoLoadMore) {
this._loadMoreBackAnimating = true
if (this._scrollY >= this._scrollViewContentHeight - this._scrollViewContainerHeight) {
this.requestAnimationFrame(this._resetFooterLayout)
}
else {
//this._swipeRefreshLayout.setNativeProps({
// refreshing: false,
//})
//this._scrollView.setNativeProps({
// scrollEnabled: true,
//})
this._footer.setNativeProps({
style: {
height: 0,
}
})
this._scrollView.scrollTo({ y: this._scrollY, animated: false, })
this._beginTimeStamp = null
this._loadMoreBackAnimating = false
this._afterLoadMoreBacked = true
this._setPaddingBlank()
this._swipeRefreshLayout.setNativeProps({
refreshing: false,
})
this._scrollView.setNativeProps({
scrollEnabled: true,
})
}
}
else {
this._setPaddingBlank()
this._swipeRefreshLayout.setNativeProps({
refreshing: false,
})
this._scrollView.setNativeProps({
scrollEnabled: true,
})
}
}
_onSwipe = (movement) => {
this._touching = true
if(this._touchingScrollY == null) {
this._touchingScrollY = this._scrollY
}
if (this._refreshBackAnimationFrame) {
this._beginResetScrollTopTimeStamp = null
this._moveMent = 0
this.cancelAnimationFrame(this._refreshBackAnimationFrame)
}
let {refresh_none, refresh_idle, will_refresh, refreshing,
load_more_none, load_more_idle, will_load_more, loading_more, loaded_all,} = viewState
let {pullUpDistance, pullDownDistance, autoLoadMore, enabledPullUp, enabledPullDown, renderSectionHeader, listSectionProps,} = this.props
if (movement > 0) {
if (enabledPullDown) {
if (renderSectionHeader && listSectionProps) {
this._floatSectionHeader.setState({
hidden: true,
})
}
if (this._refreshState == refresh_none) {
this._refreshState = refresh_idle
}
this._header.setNativeProps({
style: {
height: movement,
},
})
this._headerHeight = movement
this._moveMent = movement
this._lastMoveMent = movement
if (this._refreshState == refresh_idle || this._refreshState == will_refresh) {
if (movement >= pullDownDistance) {
if (this._refreshState == refresh_idle) {
this._refreshState = will_refresh
}
}
else {
if (this._refreshState == will_refresh) {
this._refreshState = refresh_idle
}
}
this._header.setState({
pullState: this._refreshState,
pullDistancePercent: movement / pullDownDistance,
})
}
}
}
else if (movement < 0) {
//if (enabledPullUp && !autoLoadMore) {
if (this._canLoadMore && enabledPullUp && !autoLoadMore) {
if (this._loadMoreState == load_more_none) {
this._loadMoreState = load_more_idle
this._footer.setState({
pullState: this._loadMoreState,
pullDistancePercent: Math.abs(movement) / pullUpDistance,
})
}
this._footer.setNativeProps({
style: {
height: Math.abs(movement),
},
})
this._scrollView.scrollTo({ y: this._scrollY + Math.abs(movement) / 2, animated: false, })
this._moveMent = movement
this._lastMoveMent = movement
if (this._loadMoreState == load_more_idle || this._loadMoreState == will_load_more) {
if (Math.abs(movement) > pullUpDistance) {
if (this._loadMoreState == load_more_idle) {
this._loadMoreState = will_load_more
}
}
else {
if (this._loadMoreState == will_load_more) {
this._loadMoreState = load_more_idle
}
}
this._footer.setState({
pullState: this._loadMoreState,
pullDistancePercent: Math.abs(movement) / pullUpDistance,
})
}
}
}
else {
if (this._lastMoveMent > 0) {
this._header.setNativeProps({
style: {
height: 0,
},
})
this._headerHeight = 0
}
else {
this._footer.setNativeProps({
style: {
height: 0,
},
})
//this._scrollView.scrollTo({ y: this._scrollY, animated: false, })
this._scrollView.scrollTo({ y: this._touchingScrollY, animated: false, })
}
}
}
_onRefresh = () => {
this._touchingScrollY = null
this._touching = false
if (this._moveMent > 0) {
let {will_refresh, refreshing, } = viewState
if (this._refreshState == will_refresh) {
//disable swipe event
this._swipeRefreshLayout.setNativeProps({
refreshing: true,
})
this._refreshState = refreshing
this._header.setState({
pullState: this._refreshState,
pullDistancePercent: 0,
})
//this.props.onRefresh && this.props.onRefresh() //move to _resetReverseHeaderLayout and _resetRefreshScrollTop
//this._listSectionRefs = {}
//this._listItemRefs = {}
}
this._refreshBackAnimationFrame = this.requestAnimationFrame(this._resetRefreshScrollTop)
}
else {
if (this._moveMent < 0) {
let {will_load_more, loading_more, } = viewState
if (this._loadMoreState == will_load_more) {
//disable swipe event
this._swipeRefreshLayout.setNativeProps({
refreshing: true,
})
this._loadMoreState = loading_more
this._footer.setState({
pullState: this._loadMoreState,
pullDistancePercent: 0,
})
//this.props.onLoadMore && this.props.onLoadMore() //move to _resetLoadMoreScrollTop
}
this._refreshBackAnimationFrame = this.requestAnimationFrame(this._resetLoadMoreScrollTop)
}
}
}
_setPaddingBlank = (paddingDisabled) => {
let innerViewRef = this._scrollView.refs.InnerScrollView || this._scrollView._innerViewRef || this._innerScrollView.refs.InnerScrollView || this._innerScrollView._innerViewRef
innerViewRef.measure((ox, oy, width, height, px, py) => {
let opacity
let footerHeight = this.props.autoLoadMore ? this._autoLoadFooterHeight : 0
//console.log(`footerHeight = ${footerHeight}, height = ${height}, this._paddingBlankDistance = ${this._paddingBlankDistance}, this._headerHeight = ${this._headerHeight}, this._scrollViewContainerHeight = ${this._scrollViewContainerHeight},`)
if(height - this._paddingBlankDistance - this._headerHeight - footerHeight < this._scrollViewContainerHeight) {
opacity = 0
this._canLoadMore = false
}
else {
//console.log(`this._afterDirectRefresh = ${this._afterDirectRefresh}`)
if(!this._afterDirectRefresh) {
opacity = 1
this._canLoadMore = true
}
else {
opacity = 0
this._canLoadMore = false
}
}
//console.log(`this._canLoadMore = ${this._canLoadMore}`)
if (!paddingDisabled && height - this._paddingBlankDistance < this._scrollViewContainerHeight) {
this._paddingBlankDistance = this._scrollViewContainerHeight - (height - this._paddingBlankDistance)
}
else {
this._paddingBlankDistance = 0
}
if(!this._footer) {
return
}
//console.log(`opacity = ${opacity}, this._canLoadMore = ${this._canLoadMore}, this._paddingBlankDistance = ${this._paddingBlankDistance}, this._afterDirectRefresh = ${this._afterDirectRefresh}`)
this._footer.setNativeProps({
style: {
opacity,
marginTop: this._paddingBlankDistance,
}
})
})
}
_onLayout = (e) => {
if (this._scrollViewContainerHeight == null) {
this._scrollViewContainerHeight = e.nativeEvent.layout.height
}
this._setPaddingBlank()
this.props.onLayout && this.props.onLayout(e)
}
//ensure that onContentSizeChange must be triggered while ending resetHeaderLayout/resetFooterLayout animation
_onContentSizeChange = (contentWidth, contentHeight) => {
let {refreshing, loading_more} = viewState
if (this._scrollViewContentHeight == null
|| ((this._refreshState != refreshing && !this._refreshBackAnimating)
//&& (this._loadMoreState != loading_more && !this._loadMoreBackAnimating))) {
&& ( this.props.autoLoadMore || (!this.props.autoLoadMore && this._loadMoreState != loading_more && !this._loadMoreBackAnimating) ))) {
this._scrollViewContentHeight = contentHeight
if (this._afterDirectRefresh) {
this._afterDirectRefresh = false
let {pullDownStayDistance} = this.props
if (this._scrollY > this._scrollViewContentHeight - this._scrollViewContainerHeight + pullDownStayDistance) {
this._scrollView.scrollTo({
y: this._scrollViewContentHeight - this._scrollViewContainerHeight,
animated: false,
})
}
//this._setPaddingBlank()
}
}
this.props.onContentSizeChange && this.props.onContentSizeChange(contentWidth, contentHeight)
}
_onScroll = (e) => {
let {refreshing, load_more_none, loading_more, } = viewState
let {autoLoadMore, renderSectionHeader, listSectionProps, pageTop, } = this.props
this._scrollY = e.nativeEvent.contentOffset.y
/**
* (occurs on react-native 0.32, and maybe also occurs on react-native 0.30+)Android ScrollView scrolls to bottom may occur scrollTop larger than it should be
* only occurs on android 4.4-
*/
//if(this._scrollY > this._scrollViewContentHeight - this._scrollViewContainerHeight) {
// this._scrollY = this._scrollViewContentHeight - this._scrollViewContainerHeight
// this._scrollView.scrollTo({y: this._scrollY, animated: false, })
//}
//use onEndReached handler when viewType is 'listView' to fix double triggering onLoadMore sometimes, but no idea when viewType is 'scrollView'
if (this.props.viewType == viewType.scrollView) {
if (autoLoadMore && withinErrorMargin(this._scrollY, this._scrollViewContentHeight - this._scrollViewContainerHeight - this.props.onEndReachedThreshold)
|| this._scrollY > this._scrollViewContentHeight - this._scrollViewContainerHeight - this.props.onEndReachedThreshold) {
if (this._refreshState != refreshing && this._loadMoreState == load_more_none) {
//disable swipe event
this._swipeRefreshLayout.setNativeProps({
refreshing: true,
})
this._loadMoreState = loading_more
this._footer.setState({
pullState: this._loadMoreState,
})
this.props.onLoadMore && this.props.onLoadMore()
}
}
}
//viewType.listView
else {
//android float section header
if (renderSectionHeader && listSectionProps) {
if (this._refreshState == refreshing) {
if (this._scrollY >= this._refreshingHeaderHeight) {
if (this._floatSectionHeader.state.hidden && this._beginResetScrollTopTimeStamp == null) {
this._floatSectionHeader.setState({
hidden: false,
})
}
}
else {
if (!this._floatSectionHeader.state.hidden) {
this._floatSectionHeader.setState({
hidden: true,
})
}
}
}
let listItemKeys = Object.keys(this._listItemRefs)
for (let i = 0, len = listItemKeys.length; i < len; i++) {
let rowID = listItemKeys[ i ]
let { component, sectionID, } = this._listItemRefs[ rowID ]
//console.log(`rowID = ${rowID}, component.state.hidden = ${component.state.hidden}`)
if (component && !component.state.hidden) {
component._nativeComponent.measure((ox, oy, width, height, px, py) => {
//console.log(`row -> py = ${py}, height = ${height}, pageTop = ${pageTop}, rowID = ${rowID}, sectionID = ${sectionID}`)
if (py <= height + pageTop) {
//set float section header
this._floatSectionHeader.setSectionID(sectionID)
}
})
return //do this only once
}
}
//Object.keys(this._listItemRefs).every( (rowID) => {
// let { component, sectionID, } = this._listItemRefs[rowID]
// console.log(`rowID = ${rowID}, component.state.hidden = ${component.state.hidden}`)
// //if(!component.state.hidden) {
// // component._nativeComponent.measure( (ox, oy, width, height, px, py) => {
// // //console.log(`row -> py = ${py}, height = ${height}, pageTop = ${pageTop}, rowID = ${rowID}, sectionID = ${sectionID}`)
// // if (py <= height + pageTop) {
// // this._floatSectionHeader.setSectionID(sectionID)
// // }
// // })
// // return false //do this only once
// //}
//})
let listSectionKeys = Object.keys(this._listSectionRefs)
for (let i = 0, len = listSectionKeys.length; i < len; i++) {
let sectionID = listSectionKeys[ i ]
let component = this._listSectionRefs[ sectionID ]
//console.log(`sectionID = ${sectionID}, component.state.hidden = ${component.state.hidden}`)
if (component && !component.state.hidden) {
component._nativeComponent.measure((ox, oy, width, height, px, py) => {
//console.log(`section -> py = ${py}, height = ${height}, pageTop = ${pageTop}, sectionID = ${sectionID}`)
if (py <= height + pageTop) {
this._floatSectionHeader.setSectionID(sectionID)
}
})
return //do this only once
}
}
//Object.keys(this._listSectionRefs).every((sectionID) => {
// let component = this._listSectionRefs[ sectionID ]
// console.log(`sectionID = ${sectionID}, component.state.hidden = ${component.state.hidden}`)
// //if(!component.state.hidden) {
// // component._nativeComponent.measure( (ox, oy, width, height, px, py) => {
// // //console.log(`section -> py = ${py}, height = ${height}, pageTop = ${pageTop}, sectionID = ${sectionID}`)
// // if (py <= height + pageTop) {
// // this._floatSectionHeader.setSectionID(sectionID)
// // }
// // })
// // return false //do this only once
// //}
//})
}
}
this.props.onScroll && this.props.onScroll(e)
}
_resetReverseHeaderLayout = (timestamp) => {
let {pullDownStayDistance} = this.props
let headerHeight
if (!this._beginTimeStamp) {
headerHeight = pullDownStayDistance
this._beginTimeStamp = timestamp
}
else {
headerHeight = pullDownStayDistance * (timestamp - this._beginTimeStamp) / refreshAnimationDuration
if (headerHeight > pullDownStayDistance) {
headerHeight = pullDownStayDistance
}
}
this._header.setNativeProps({
style: {
height: headerHeight,
}
})
this._headerHeight = headerHeight
if (timestamp - this._beginTimeStamp > refreshAnimationDuration) {
this._header.setNativeProps({
style: {
height: pullDownStayDistance,
}
})
this._headerHeight = pullDownStayDistance
this._beginTimeStamp = null
this._refreshBackAnimating = false
this._afterRefreshBacked = true
//console.log(`_resetReverseHeaderLayout onRefresh()`)
this.props.onRefresh && this.props.onRefresh()
return
}
return this.requestAnimationFrame(this._resetReverseHeaderLayout)
}
_resetRefreshScrollTop = (timestamp) => {
let {pullDownStayDistance, renderSectionHeader, listSectionProps, } = this.props
let {refreshing} = viewState
if (this._refreshState != refreshing) {
pullDownStayDistance = 0
}
let headerHeight
if (!this._beginResetScrollTopTimeStamp) {
headerHeight = this._moveMent
this._beginResetScrollTopTimeStamp = timestamp
}
else {
let percent = (timestamp - this._beginResetScrollTopTimeStamp) / scrollBounceAnimationDuration
headerHeight = this._moveMent - (this._moveMent - pullDownStayDistance) * easeOutCirc(percent, scrollBounceAnimationDuration * percent, 0, 1, scrollBounceAnimationDuration)
}
if (headerHeight < pullDownStayDistance) {
headerHeight = pullDownStayDistance
}
this._header.setNativeProps({
style: {
height: headerHeight,
}
})
this._headerHeight = headerHeight
if (timestamp - this._beginResetScrollTopTimeStamp > scrollBounceAnimationDuration) {
this._beginResetScrollTopTimeStamp = null
this._moveMent = 0
if (this._refreshState != refreshing) {
if (renderSectionHeader && listSectionProps) {
this._floatSectionHeader.setState({
hidden: false,
})
}
}
else {
//console.log(`_resetRefreshScrollTop onRefresh()`)
this.props.onRefresh && this.props.onRefresh()
}
this._refreshingHeaderHeight = headerHeight
return
}
this._refreshBackAnimationFrame = this.requestAnimationFrame(this._resetRefreshScrollTop)
}
_resetLoadMoreScrollTop = (timestamp) => {
let {pullUpStayDistance} = this.props
let {loading_more} = viewState
if (this._loadMoreState != loading_more) {
pullUpStayDistance = 0
}
let footerHeight, scrollViewTranslateY
if (!this._beginResetScrollTopTimeStamp) {
footerHeight = Math.abs(this._moveMent)
scrollViewTranslateY = 0
this._beginResetScrollTopTimeStamp = timestamp
this._fixedScrollY = this._scrollY
}
else {
let scrollViewTranslateMaxY
let percent = (timestamp - this._beginResetScrollTopTimeStamp) / scrollBounceAnimationDuration
footerHeight = Math.abs(this._moveMent) - (Math.abs(this._moveMent) - pullUpStayDistance) * easeOutCirc(percent, scrollBounceAnimationDuration * percent, 0, 1, scrollBounceAnimationDuration)
scrollViewTranslateMaxY = this._fixedScrollY - (this._scrollViewContentHeight - this._scrollViewContainerHeight)
scrollViewTranslateY = scrollViewTranslateMaxY * (timestamp - this._beginResetScrollTopTimeStamp) / refreshAnimationDuration
if (scrollViewTranslateY > scrollViewTranslateMaxY) {
scrollViewTranslateY = scrollViewTranslateMaxY
}
}
if (footerHeight < pullUpStayDistance) {
footerHeight = pullUpStayDistance
}
this._footer.setNativeProps({
style: {
height: footerHeight,
}
})
this._scrollView.scrollTo({ y: this._fixedScrollY - scrollViewTranslateY, animated: false, })
if (timestamp - this._beginResetScrollTopTimeStamp > scrollBounceAnimationDuration) {
this._beginResetScrollTopTimeStamp = null
this._moveMent = 0
if (this._loadMoreState == loading_more) {
this.props.onLoadMore && this.props.onLoadMore()
}
return
}
this._refreshBackAnimationFrame = this.requestAnimationFrame(this._resetLoadMoreScrollTop)
}
_resetHeaderLayout = (timestamp) => {
let {loaded_all, load_more_none} = viewState
let {pullDownStayDistance, dataSource, renderSectionHeader, listSectionProps, } = this.props
let headerHeight
if (!this._beginTimeStamp) {
headerHeight = pullDownStayDistance
this._beginTimeStamp = timestamp
this._fixedScrollY = this._scrollY > 0 ? this._scrollY : 0
}
else {
headerHeight = pullDownStayDistance - (pullDownStayDistance - this._fixedScrollY - StyleSheet.hairlineWidth) * (timestamp - this._beginTimeStamp) / refreshAnimationDuration
//if (headerHeight < 0) {
// headerHeight = 0
//}
/**
* fix the bug that onContentSizeChange sometimes is not triggered, it causes incorrect contentHeight(this._scrollViewContentHeight)
*/
if (headerHeight < StyleSheet.hairlineWidth) {
headerHeight = StyleSheet.hairlineWidth
}
}
this._header.setNativeProps({
style: {
height: headerHeight,
}
})
this._headerHeight = headerHeight
if (timestamp - this._beginTimeStamp > refreshAnimationDuration) {
this._header.setNativeProps({
style: {
height: 0,
}
})
this._headerHeight = 0
if (this._fixedScrollY > 0) {
this._scrollView.scrollTo({ y: 0, animated: false, })
}
this._beginTimeStamp = null
this._refreshBackAnimating = false
this._afterRefreshBacked = true
this._setPaddingBlank()
////force show footer
//this._footer.setNativeProps({
// style: {
// opacity: 1,
// }
//})
////enabled swipe event
//this._swipeRefreshLayout.setNativeProps({
// refreshing: false,
//})
//this._scrollView.setNativeProps({
// scrollEnabled: true,
//})
//reset loadMoreState to load_more_none
if (this._loadMoreState == loaded_all) {
this._loadMoreState = load_more_none
this._footer.setState({
pullState: this._loadMoreState,
pullDistancePercent: 0,
})
}
//enabled swipe event
this._swipeRefreshLayout.setNativeProps({
refreshing: false,
})
this._scrollView.setNativeProps({
scrollEnabled: true,
})