image.png
image.png
当我们直接引入weex-ui并想使用wxc-loading组件时这些写死的地方往往会限制我们的使用，比如只能用它提供的gif图，如果产品经理要我们换图就歇菜了。这些也只有自己用到它的时候才会体会到吧...所以我在wxc-loading的基础上稍微扩展了一下，让gif图、遮罩层的尺寸、背景颜色、提示文字的颜色能够自定义传入，实现扩展。
把weex-ui的wxc-loading组件单独拎出来，做成一个vue文件，命名为wxc-loadingsp.vue，整个wxc-loadingsp.vue代码如下（简书好像不能传文件，这里直接贴完整组件代码，有需要的小伙伴直接拷贝就好）：
<!-- Created by shayneChen on 2018/08/09. -->
<!--全局加载提示组件. -->
<template>
<div :class="[showLoading && needMask && 'loading-need-mask']"
@click="maskClicked"
:style="maskStyle">
<div class="wxc-loading" :style="[centerPosition]" v-if="showLoading">
<div :class="['loading-box',mBackgroundcolor?'':'transparent']" :style="[conStyle]" :aria-hidden="true">
<image :src="loading.url"
:style="{width:mImgwidth,height:mImgheight}"
resize="contain"
quality="original"></image>
<text v-if="loadingText" :style="{color:mTextcolor}" class="loading-text">{{loadingText}}</text>
</div>
</div>
</div>
</template>
<style scoped>
.loading-need-mask {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background-color: rgba(0, 0, 0, 0.3);
}
.wxc-loading {
position: fixed;
z-index: 9999;
}
.loading-box {
align-items: center;
justify-content: center;
border-radius: 20px;
}
.transparent {
background-color: rgba(0, 0, 0, .2);
}
.loading-trip-image {
height: 166px;
width: 199px;
}
.loading-text {
font-size: 30px;
line-height: 46px;
height: 46px;
margin-top: 8px;
text-overflow: ellipsis;
padding-left: 12px;
padding-right:12px;
margin-bottom: 8px;
text-align: center;
}
</style>
<script>
export default {
props: {
show: {
type: Boolean,
default: false
},
loadingText: {
type: String,
default: ''
},
type: {
type: String,
default: 'default'
},
interval: {
type: [Number, String],
default: 0
},
needMask: {
type: Boolean,
default: false
},
maskStyle: {
type: Object,
default: () => ({})
},
mHeight: {
type: String,
default: '175'
},
mWidth: {
type: String,
default: '175'
},
mBackgroundcolor: {
type:String,
default: ''
},
mUrl: {
type:String
},
mTextcolor: {
type:String,
default:'#ffffff'
},
mImgwidth: {
type:String,
default:'200'
},
mImgheight:{
type:String,
default:'200'
},
mTop: {
type:String,
default:''
}
},
data: () => ({
showLoading: false,
tid: 0
}),
watch: {
show () {
this.setShow();
}
},
computed: {
//整个容器的尺寸和背景样式
conStyle() {
let style = {};
style["width"] = `${this.mWidth}px`;
style["height"] = `${this.mHeight}px`;
if(this.mBackgroundcolor) {
style["backgroundColor"] = this.mBackgroundcolor
}
return style;
},
//根据自定义的高宽来居中定位
centerPosition() {
let style = {};
style["top"] = `${this.mTop ? this.mTop : this.topPosition}px`;
style["left"] = `${(750-this.mWidth)/2}px`;
return style;
},
topPosition () {
return (this.getPageHeight() - this.mHeight) / 2;
},
loading () {
let loading = {};
switch (this.type) {
case 'custom':
loading = {
url: this.mUrl
};
break;
//不指定type为cunstom则用官网默认gif图
default:
loading = {
url: 'https://img.alicdn.com/tfs/TB1Ep_9NVXXXXb8XVXXXXXXXXXX-74-74.gif'
}
}
return loading;
},
},
created () {
this.setShow();
},
methods: {
/**
* 获取weex屏幕真实的设置高度，需要减去导航栏高度
* @returns {Number}
*/
getPageHeight () {
const { env } = weex.config;
// const navHeight = Utils.env.isWeb() ? 0 : (Utils.env.isIPhoneX() ? 176 : 132);
return env.deviceHeight / env.deviceWidth * 750 - 132;
},
maskClicked () {
this.needMask && (this.$emit('wxcLoadingMaskClicked', {}));
},
setShow () {
const { interval, show, showLoading } = this;
const stInterval = parseInt(interval);
clearTimeout(this.tid);
if (show) {
if (showLoading) {
return;
}
if (stInterval === 0) {
this.showLoading = true;
} else {
this.tid = setTimeout(() => {
this.showLoading = true;
}, stInterval);
}
} else {
this.showLoading = false;
}
}
}
};
</script>
放到文件夹后，import后这么使用
<!--此处m-打头的是我们自定义的特性-->
<wxc-loadingsp
:show="showPrintLoading"
type="custom"
need-mask="true"
loading-text="名片打印中..."
m-url="./image/print.gif"
m-width="380"
m-height="380"
m-backgroundcolor="#ffffff"
m-textcolor="#313131"
>
</wxc-loadingsp>
<!--此处省略-->
import WxcLoadingsp from './components/wxc-loadingsp.vue';
<!--此处省略-->
components: {
WxcLoadingsp
},
<!--此处省略-->
