ImageSlider.js
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'use strict';
import React from 'react';
import ReactNative from 'react-native';
import YH_Image from '../../../common/components/YH_Image';
import Immutable, {Map} from 'immutable';
import YH_Swiper from '../../../common/components/YH_Swiper';
const {
View,
Image,
TouchableOpacity,
StyleSheet,
Dimensions,
Platform,
} = ReactNative;
export default class ImageSlider extends React.Component {
constructor(props) {
super (props);
}
shouldComponentUpdate(nextProps){
if (Immutable.is(nextProps.resource, this.props.resource)
&& nextProps.sliderWidth == this.props.sliderWidth
&& nextProps.sliderHeight == this.props.sliderHeight) {
return false;
} else {
return true;
}
}
render() {
let {resource, sliderWidth, sliderHeight} = this.props;
if (!resource || resource.size == 0) {
return null;
}
let data = this.props.resource.toJS();
if (data.length == 1) {
let imageUrl = YH_Image.getSlicedUrl(data[0].src, sliderWidth, sliderHeight, 2);
return (
<TouchableOpacity
activeOpacity={1}
style={{width: sliderWidth, height: sliderHeight}}
onPress={() => {
this.props.onPressSlideItem && this.props.onPressSlideItem(data[0].url, imageUrl, 0);
}}
>
<YH_Image
url={imageUrl}
style={{ width: sliderWidth, height: sliderHeight}}
/>
</TouchableOpacity>
);
} else {
return (
<YH_Swiper
showsButtons={false}
loop={true}
autoplay={true}
autoplayTimeout={3}
width={sliderWidth}
height={sliderHeight}
paginationStyle={{
backgroundColor: 'rgba(68, 68, 68, 0.2)',
bottom: 10,
height: 10,
width: data.length * 12,
borderRadius: 5,
marginLeft: (sliderWidth - data.length * 12)/2,
paddingBottom: 3,
}}
>
{data.map((item, i) => {
let imageUrl = YH_Image.getSlicedUrl(item.src, sliderWidth, sliderHeight, 2);
return (
<TouchableOpacity
key={i}
activeOpacity={1}
yh_exposureData={item.yh_exposureData}
onPress={() => {
this.props.onPressSlideItem && this.props.onPressSlideItem(item.url, imageUrl,i);
}}
onPressIn={() => {
this.props.onChildScrollToPreventRefresh && this.props.onChildScrollToPreventRefresh();
}}
>
<YH_Image
url={imageUrl}
style={{width: sliderWidth, height: sliderHeight}}
/>
</TouchableOpacity>
);
})}
</YH_Swiper>
);
}
}
}