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| 1 | +<template> |
| 2 | + <view class="u-demo"> |
| 3 | + <view class="u-demo-wrap"> |
| 4 | + <view class="u-demo-title">演示效果</view> |
| 5 | + <view class="u-demo-area u-flex u-row-center"> |
| 6 | + <u-image :shape="shape" ref="uImage" :width="width" :height="height" :src="src" mode="aspectFill"> |
| 7 | + <u-loading size="44" mode="flower" slot="loading" v-if="loadingSlot"></u-loading> |
| 8 | + <view v-if="errorSlot" slot="error" style="font-size: 24rpx;">加载失败</view> |
| 9 | + </u-image> |
| 10 | + </view> |
| 11 | + </view> |
| 12 | + <view class="u-config-wrap"> |
| 13 | + <view class="u-config-title u-border-bottom">参数配置</view> |
| 14 | + <view class="u-config-item"> |
| 15 | + <view class="u-item-title">状态</view> |
| 16 | + <u-subsection :current="statusCurrent" vibrateShort :list="['加载成功', '加载中', '加载失败']" @change="statusChange"></u-subsection> |
| 17 | + </view> |
| 18 | + <view class="u-config-item"> |
| 19 | + <view class="u-item-title">加载中状态</view> |
| 20 | + <u-subsection vibrateShort :list="['默认', '自定义']" @change="loadingChange"></u-subsection> |
| 21 | + </view> |
| 22 | + <view class="u-config-item"> |
| 23 | + <view class="u-item-title">加载失败状态</view> |
| 24 | + <u-subsection vibrateShort :list="['默认', '自定义']" @change="errorChange"></u-subsection> |
| 25 | + </view> |
| 26 | + <view class="u-config-item"> |
| 27 | + <view class="u-item-title">形状</view> |
| 28 | + <u-subsection vibrateShort :list="['方形', '圆形']" @change="shapeChange"></u-subsection> |
| 29 | + </view> |
| 30 | + </view> |
| 31 | + </view> |
| 32 | +</template> |
| 33 | + |
| 34 | +<script> |
| 35 | +export default { |
| 36 | + data() { |
| 37 | + return { |
| 38 | + src: 'https://cdn.uviewui.com/uview/example/fade.jpg', |
| 39 | + width: '200', |
| 40 | + height: '200', |
| 41 | + loadingSlot: false, |
| 42 | + statusCurrent: 0, |
| 43 | + errorSlot: false, |
| 44 | + shape: 'square' |
| 45 | + }; |
| 46 | + }, |
| 47 | + computed: { |
| 48 | + // statusCurrent() { |
| 49 | + // } |
| 50 | + }, |
| 51 | + methods: { |
| 52 | + statusChange(index) { |
| 53 | + // 此处通过ref操作组件内部状态,仅是为了演示使用,实际中无需这些操作,由内部的图片加载事件自动完成 |
| 54 | + if (index == 0) { |
| 55 | + this.src = 'http://img5.imgtn.bdimg.com/it/u=2438062088,2808868405&fm=26&gp=0.jpg'; |
| 56 | + this.$refs.uImage.loading = false; |
| 57 | + this.$refs.uImage.isError = false; |
| 58 | + } else if (index == 1) { |
| 59 | + this.$refs.uImage.loading = true; |
| 60 | + } else { |
| 61 | + this.$refs.uImage.loading = false; |
| 62 | + this.$refs.uImage.isError = true; |
| 63 | + } |
| 64 | + }, |
| 65 | + loadingChange(index) { |
| 66 | + this.statusCurrent = 1; |
| 67 | + this.statusChange(1); |
| 68 | + if (index == 0) { |
| 69 | + this.loadingSlot = false; |
| 70 | + } else { |
| 71 | + this.loadingSlot = true; |
| 72 | + } |
| 73 | + }, |
| 74 | + errorChange(index) { |
| 75 | + this.statusCurrent = 2; |
| 76 | + this.statusChange(2); |
| 77 | + if (index == 0) { |
| 78 | + this.errorSlot = false; |
| 79 | + } else { |
| 80 | + this.errorSlot = true; |
| 81 | + } |
| 82 | + }, |
| 83 | + shapeChange(index) { |
| 84 | + this.shape = index == 0 ? 'square' : 'circle'; |
| 85 | + } |
| 86 | + } |
| 87 | +}; |
| 88 | +</script> |
| 89 | + |
| 90 | +<style scoped lang="scss"> |
| 91 | +.u-demo-area { |
| 92 | +} |
| 93 | +</style> |
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