/
ListViewRefresh.js
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/
ListViewRefresh.js
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'use strict';
import React,{PropTypes} from 'react'
import {
Image,
View,
Text,
StyleSheet,
ListView,
Dimensions,
ActivityIndicator
} from 'react-native'
/*list status change graph
*
*STATUS_NONE->[STATUS_REFRESH_IDLE, STATUS_INFINITE_IDLE, STATUS_INFINITE_LOADED_ALL]
*STATUS_REFRESH_IDLE->[STATUS_NONE, STATUS_WILL_REFRESH]
*STATUS_WILL_REFRESH->[STATUS_REFRESH_IDLE, STATUS_REFRESHING]
*STATUS_REFRESHING->[STATUS_NONE]
*STATUS_INFINITE_IDLE->[STATUS_NONE, STATUS_WILL_INFINITE]
*STATUS_WILL_INFINITE->[STATUS_INFINITE_IDLE, STATUS_INFINITING]
*STATUS_INFINITING->[STATUS_NONE]
*STATUS_INFINITE_LOADED_ALL->[STATUS_NONE]
*
*/
var
STATUS_NONE = 0,
STATUS_REFRESH_IDLE = 1,
STATUS_WILL_REFRESH = 2,
STATUS_REFRESHING = 3,
STATUS_INFINITE_IDLE = 4,
STATUS_WILL_INFINITE = 5,
STATUS_INFINITING = 6,
STATUS_INFINITE_LOADED_ALL = 7;
var DEFAULT_PULL_DISTANCE = 60;
var DEFAULT_HF_HEIGHT = 50;
var RefreshInfiniteListView = React.createClass({
propTypes: {
footerHeight : PropTypes.number,
pullDistance : PropTypes.number,
renderEmptyRow : PropTypes.func,
renderHeaderRefreshIdle : PropTypes.func,
renderHeaderWillRefresh : PropTypes.func,
renderHeaderRefreshing : PropTypes.func,
renderFooterInifiteIdle : PropTypes.func,
renderFooterWillInifite : PropTypes.func,
renderFooterInifiting : PropTypes.func,
renderFooterInifiteLoadedAll : PropTypes.func,
},
getDefaultProps () {
return {
footerHeight: DEFAULT_HF_HEIGHT,
pullDistance: DEFAULT_PULL_DISTANCE,
renderEmptyRow: () => {
return (
<View style={{height:Dimensions.get('window').height*2/3, justifyContent:'center',alignItems:'center'}}>
<Text style={{fontSize:40, fontWeight:'800', color:'red'}}>
have no data
</Text>
</View>
)
},
renderHeaderRefreshIdle: () => {return (
<View style={{flex:1, height:DEFAULT_HF_HEIGHT, justifyContent:'center', alignItems:'center'}}>
<Text style={styles.text}>
pull down refresh...
</Text>
<Image
source={require('./pull_arrow.png')}
resizeMode={Image.resizeMode.stretch}
style={styles.image}
/>
</View>
)},
renderHeaderWillRefresh: () => {return (
<View style={{height:DEFAULT_HF_HEIGHT, justifyContent:'center', alignItems:'center'}}>
<Text style={styles.text}>
release to refresh...
</Text>
<Image
source={require('./pull_arrow.png')}
resizeMode={Image.resizeMode.stretch}
style={[styles.image, styles.imageRotate]}
/>
</View>
)},
renderHeaderRefreshing: () => {return (
<View style={{height:DEFAULT_HF_HEIGHT, justifyContent:'center', alignItems:'center'}}>
<Text style={styles.text}>
refreshing...
</Text>
<ActivityIndicator
size='small'
animating={true}/>
</View>
)},
renderFooterInifiteIdle: () => {return (
<View style={{height:DEFAULT_HF_HEIGHT, justifyContent:'center', alignItems:'center'}}>
<Image
source={require('./pull_arrow.png')}
resizeMode={Image.resizeMode.stretch}
style={[styles.image, styles.imageRotate]}
/>
<Text style={styles.text}>
pull up to load more...
</Text>
</View>
)},
renderFooterWillInifite: () => {return (
<View style={{height:DEFAULT_HF_HEIGHT, justifyContent:'center', alignItems:'center'}}>
<Image
source={require('./pull_arrow.png')}
resizeMode={Image.resizeMode.stretch}
style={styles.image}
/>
<Text style={styles.text}>
release to load more...
</Text>
</View>
)},
renderFooterInifiting: () => {return (
<View style={{height:DEFAULT_HF_HEIGHT, justifyContent:'center', alignItems:'center'}}>
<ActivityIndicator
size='small'
animating={true}/>
<Text style={styles.text}>
loading...
</Text>
</View>
)},
renderFooterInifiteLoadedAll: () => { return (
<View style={{height:DEFAULT_HF_HEIGHT, justifyContent:'center', alignItems:'center'}}>
<Text style={styles.text}>
have loaded all data
</Text>
</View>
)},
loadedAllData: () => {
return false;
},
onRefresh: () => {
console.log("onRefresh");
},
onInfinite: () => {
console.log("onInfinite");
},
};
},
getInitialState() {
return {
status: STATUS_NONE,
isLoadedAllData: false,
}
},
renderRow(text) {
if (this.dataSource) {
return this.props.renderEmptyRow(text);
} else {
return this.props.renderRow(text);
}
},
renderHeader() {
var status = this.state.status;
if (status === STATUS_REFRESH_IDLE) {
return this.props.renderHeaderRefreshIdle();
}
if (status === STATUS_WILL_REFRESH) {
return this.props.renderHeaderWillRefresh();
}
if (status === STATUS_REFRESHING) {
return this.props.renderHeaderRefreshing();
}
return null;
},
renderFooter() {
var status = this.state.status;
this.footerIsRender = true;
if (status === STATUS_INFINITE_IDLE) {
return this.props.renderFooterInifiteIdle();
}
if (status === STATUS_WILL_INFINITE) {
return this.props.renderFooterWillInifite();
}
if (status === STATUS_INFINITING) {
return this.props.renderFooterInifiting();
}
if (status === STATUS_INFINITE_LOADED_ALL) {
return this.props.renderFooterInifiteLoadedAll();
}
this.footerIsRender = false;
return null;
},
handleResponderGrant(event) {
var nativeEvent = event.nativeEvent;
if (!nativeEvent.contentInset || this.state.status!==STATUS_NONE) {
return;
}
var y0 = nativeEvent.contentInset.top + nativeEvent.contentOffset.y;
if (y0 < 0) {
this.setState({status:STATUS_REFRESH_IDLE});
return;
}
y0 = nativeEvent.contentInset.top + nativeEvent.contentOffset.y +
nativeEvent.layoutMeasurement.height-nativeEvent.contentSize.height;
if (y0 > 0 ) {
if (!this.props.loadedAllData()) {
this.initialInfiniteOffset = (y0>0?y0:0);
this.setState({status:STATUS_INFINITE_IDLE});
} else {
this.setState({status:STATUS_INFINITE_LOADED_ALL});
}
}
},
hideHeader() {
this.setState({status:STATUS_NONE});
},
hideFooter() {
this.setState({status:STATUS_NONE});
},
handleResponderRelease(event) {
var status = this.state.status;
if (status === STATUS_REFRESH_IDLE) {
this.setState({status:STATUS_NONE});
} else if (status === STATUS_WILL_REFRESH) {
this.setState({status:STATUS_REFRESHING});
this.props.onRefresh();
} else if (status === STATUS_INFINITE_IDLE) {
this.setState({status:STATUS_NONE});
} else if (status === STATUS_WILL_INFINITE) {
this.setState({status:STATUS_INFINITING});
this.props.onInfinite();
} else if (status === STATUS_INFINITE_LOADED_ALL) {
this.setState({status:STATUS_NONE});
}
},
handleScroll(event) {
var nativeEvent = event.nativeEvent;
var status = this.state.status;
if (status===STATUS_REFRESH_IDLE || status===STATUS_WILL_REFRESH) {
var y = nativeEvent.contentInset.top + nativeEvent.contentOffset.y
if (status!==STATUS_WILL_REFRESH && y<-this.props.pullDistance) {
this.setState({status:STATUS_WILL_REFRESH});
} else if (status===STATUS_WILL_REFRESH && y>=-this.props.pullDistance) {
this.setState({status:STATUS_REFRESH_IDLE});
}
return;
}
if (status===STATUS_INFINITE_IDLE || status===STATUS_WILL_INFINITE) {
var y = nativeEvent.contentInset.top + nativeEvent.contentOffset.y + nativeEvent.layoutMeasurement.height
-nativeEvent.contentSize.height-this.initialInfiniteOffset;
if (this.footerIsRender) {
y += this.props.footerHeight;
}
if (status!==STATUS_WILL_INFINITE && y>this.props.pullDistance) {
this.setState({status:STATUS_WILL_INFINITE});
} else if (status===STATUS_WILL_INFINITE && y<=this.props.pullDistance) {
this.setState({status:STATUS_INFINITE_IDLE});
}
}
},
render() {
this.dataSource = null;
if (!this.props.dataSource.getRowCount()) {
var DataSource = new ListView.DataSource({rowHasChanged: (r1, r2) => r1 !== r2});
this.dataSource = DataSource.cloneWithRows([""]);
}
return (
<ListView
{...this.props}
dataSource={this.dataSource?this.dataSource:this.props.dataSource}
renderRow={this.renderRow}
renderHeader={this.renderHeader}
renderFooter={this.renderFooter}
onResponderGrant={this.handleResponderGrant}
onResponderRelease={this.handleResponderRelease}
onScroll={this.handleScroll}
/>
)
}
});
var styles = StyleSheet.create({
text: {
fontSize:16,
},
image: {
width:40,
height:32,
},
imageRotate: {
transform:[{rotateX: '180deg'},],
}
});
module.exports = RefreshInfiniteListView;