老师,下拉刷新错误,麻烦看下
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 | src/base/scroll/index.vue < template > < swiper :options = "swiperOption" ref = 'swiper' > < div class = "mine-scroll-pull-down" v-if = "pullDown" > < me-loading :text = "pullDownText" inline ref = "pullDownLoading" /> </ div > < swiper-slide > < slot ></ slot > </ swiper-slide > < div class = "swiper-scrollbar" v-if = "scrollbar" slot = "scrollbar" ></ div > </ swiper > </ template > < script > import {swiper, swiperSlide} from 'vue-awesome-swiper'; import MeLoading from 'base/loading'; import { PULL_DOWN_HEIGHT, PULL_DOWN_TEXT_INIT, PULL_DOWN_TEXT_START, PULL_DOWN_TEXT_ING, PULL_DOWN_TEXT_END, PULL_UP_HEIGHT, PULL_UP_TEXT_INIT, PULL_UP_TEXT_START, PULL_UP_TEXT_ING, PULL_UP_TEXT_END } from './config'; export default{ name: 'MeScroll', components: { swiper, swiperSlide, MeLoading }, props: { scrollbar: { type: Boolean, default: true }, data: { type: [Array, Object] }, pullDown: { type: Boolean, default: false }, }, data() { return { pulling: false, pullDownText: PULL_DOWN_TEXT_INIT, swiperOption: { direction: 'vertical', slidesPerView: 'auto', freeMode: true, setWrapperSize: true, scrollbar: { el: this.scrollbar ? '.swiper-scrollbar' : null, hide: true }, on: { sliderMove: this.scroll, touchEnd: this.touchEnd } } }; }, watch: { data() { this.update(); } }, methods: { update() { this.$refs.swiper && this.$refs.swiper.swiper.update(); }, scroll() { const swiper = this.$refs.swiper.swiper; if (this.pulling) { return; } if (swiper.translate > 0) { // 下拉 if (!this.pullDown) { return; } if (swiper.translate > PULL_DOWN_HEIGHT) { this.$refs.pullDownLoading.setText(PULL_DOWN_TEXT_START); } else { this.$refs.pullDownLoading.setText(PULL_DOWN_TEXT_INIT); } } }, touchEnd() { if (this.pulling) { return; } const swiper = this.$refs.swiper.swiper; if (swiper.translate > PULL_DOWN_HEIGHT) { // 下拉 if (!this.pullDown) { return; } this.pulling = true; swiper.allowTouchMove = false;// 禁止触摸 swiper.setTransition(swiper.params.speed); swiper.setTranslate(PULL_DOWN_HEIGHT); swiper.params.virtualTranslate = true;// 定住不给回弹 this.$refs.pullDownLoading.setText(PULL_DOWN_TEXT_ING); this.$emit('pull-down', this.pullDownEnd);// 触发一个事件 } }, pullDownEnd() { const swiper = this.$refs.swiper.swiper; this.pulling = false; this.$refs.pullDownLoading.setText(PULL_DOWN_TEXT_END); swiper.params.virtualTranslate = false; swiper.allowTouchMove = true; swiper.setTransition(swiper.params.speed); swiper.setTranslate(0); } } } </ script > < style scoped> .swiper-container { overflow: hidden; width: 100%; height: 100%; }; .swiper-slide { height: auto; } .mine-scroll-pull-down { position: absolute; left: 0; bottom: 100%; width: 100%; height: 80px; } </ style > src/pages/home/index.vue < template > < div class = "home" > < header class = "g-header-container" > < home-header /> </ header > < me-scroll :data = "recommends" pullDown @ pull-down = "pullToRefresh" > < home-slider ref = "slider" /> < home-nav /> < home-recommend @ loaded = "getRecommends" /> </ me-scroll > < div class = "g-backtop-container" ></ div > < router-view ></ router-view > </ div > </ template > < script > import HomeHeader from './header'; import HomeSlider from './slider'; import MeScroll from 'base/scroll'; import HomeNav from './nav'; import HomeRecommend from './recommend'; export default{ name: 'Home', components: { MeScroll, HomeHeader, HomeSlider, HomeNav, HomeRecommend, }, data() { return { recommends: [], //isBacktopVisible: false, //isHeaderTransition: false }; }, methods: { updateScroll() { }, getRecommends(recommends) { this.recommends = recommends; }, pullToRefresh(end) { this.$refs.slider.update().then(end); // setTimeout(() =>{ // console.log('下拉刷新'); // end(); // },1000); }, } }; </ script > < style scoped> @import "~assets/scss/mixins"; .home { overflow:hidden;width:100%;height:100%;background-color: $bgc-theme; } </ style > |
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同学你好,home/slider.vue文件中,如下,缺少return;
希望能帮助到你,欢迎采纳。
祝学习愉快!
慕虎7525453
2019-01-10 11:46:32
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 | api/home.js import axios from 'axios'; import jsonp from 'assets/js/jsonp'; import {SUCC_CODE, TIMEOUT, HOME_RECOMMEND_PAGE_SIZE, jsonpOptions} from './config'; // 打乱数组顺序 const shuffle = (arr) => { const arrLength = arr.length; let i = arrLength; let rndNum; while (i--) { if (i !== (rndNum = Math.floor(Math.random() * arrLength))) { [arr[i], arr[rndNum]] = [arr[rndNum], arr[i]]; } } return arr; }; // 获取幻灯片数据--ajax export const getHomeSlider = () => { return axios.get('http://www.imooc.com/api/home/slider',{ timeout: TIMEOUT }).then(res => { if(res.data.code === SUCC_CODE) { let sliders = res.data.slider; const slider = [sliders[Math.floor(Math.random() * sliders.length)]]; sliders = shuffle(sliders.filter(() => Math.random() >= 0.5)); if (sliders.length === 0) { sliders = slider; } return sliders; } throw new Error('没有成功获取到数据!'); }).catch(err => { if (err) { console.log(err); } return [ { linkUrl: 'https://www.imooc.com', picUrl: require('assets/img/404.png') } ]; }).then(res => { return new Promise(resolve => { setTimeout(() => { resolve(res); }, 1000); }); }); }; // 获取热门推荐数据--jsonp export const getHomeRecommend = (page = 1, psize = HOME_RECOMMEND_PAGE_SIZE) => { const url = 'https://ju.taobao.com/json/tg/ajaxGetItemsV2.json'; const params = { page, psize, type: 0, frontCatId: '' }; return jsonp(url, params, jsonpOptions).then(res => { if (res.code === '200') { return res; } throw new Error('没有成功获取到数据!'); }).catch(err => { if (err) { console.log(err); } }).then(res => { return new Promise(resolve => { setTimeout(() => { resolve(res); }, 1000); }); }); }; home/slider.vue < template > < div class = "slider-wapper" > < me-loading v-if = "!sliders.length" /> < me-slider :data = "sliders" :direction = "direction" :loop = "loop" :interval = "interval" :pagination = "pagination" v-else > < swiper-slide v-for = "(item, index) in sliders" :key = "index" > < a :href = "item.linkUrl" alt = "" class = 'slider-link' > < img :src = "item.picUrl" alt = "" class = 'slider-img' > </ a > </ swiper-slide > </ me-slider > </ div > </ template > < script > import MeSlider from 'base/slider'; import {swiperSlide} from 'vue-awesome-swiper'; import {sliderOptions} from './config'; import {getHomeSlider} from 'api/home'; import MeLoading from 'base/loading'; export default { name: 'HomeSlider', components: { MeSlider, MeLoading, swiperSlide }, data() { return { direction: sliderOptions.direction, loop: sliderOptions.loop, interval: sliderOptions.interval, pagination: sliderOptions.pagination, sliders: [] }; }, created() { this.getSliders(); }, methods: { update() { return this.getSliders(); }, getSliders() { getHomeSlider().then(data => { this.sliders = data; }); } } }; </ script > < style scoped> .slider-wapper { width: 100%; height: 183px; } .slider-link { display: block; } .slider-link, .slider-img { overflow: hidden; width: 100%; height: 100%; } </ style > base/slider/index.vue < template > < swiper :options = "swiperOption" :key = "keyId" > < slot ></ slot > < div class = "swiper-pagination" v-if = "pagination" slot = "pagination" > </ div > </ swiper > </ template > < script > import {swiper} from 'vue-awesome-swiper'; export default { name: 'MeSlider', components: { swiper }, props: { direction: { type: String, default: 'horizontal', validator(value) { return [ 'horizontal', 'vertical' ].indexOf(value) > -1; } }, interval: { type: Number, default: 3000, validator(value) { return value >= 0; } }, loop: { type: Boolean, default: true }, pagination: { type: Boolean, default: true }, data: { type: Array, default() { return []; } } }, data() { return { keyId: Math.random() }; }, watch: { data(newData) { if (newData.length === 0) { return; } this.swiperOption.loop = newData.length === 1 ? false : this.loop; this.keyId = Math.random(); } }, created() { this.init(); }, methods: { init() { this.swiperOption = { watchOverflow: true, direction: this.direction, autoplay: this.interval ? { delay: this.interval, disableOnInteraction: false } : false, slidesPerView: 1, loop: this.data.length <= 1 ? false : this.loop, pagination: { el: this.pagination ? '.swiper-pagination' : null } }; } } } </ script > < style scoped> .swiper-container { width: 100%; height: 100%; } </ style > |
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