From 1b18b86bbf1b29a9fba337c9905b0395d8a072af Mon Sep 17 00:00:00 2001
From: Tevin <tingquanren@163.com>
Date: Mon, 14 Dec 2020 14:22:42 +0800
Subject: [PATCH] 实现无限滚动
---
common/Tools.js | 124 ++++------------------------------------
1 files changed, 14 insertions(+), 110 deletions(-)
diff --git a/common/Tools.js b/common/Tools.js
index cebd493..57a1073 100644
--- a/common/Tools.js
+++ b/common/Tools.js
@@ -4,6 +4,7 @@
*/
import moment from 'moment';
+import Taro from '@tarojs/taro';
export class Tools {
@@ -37,6 +38,19 @@
}
/**
+ * 显示消息
+ * @param msg
+ */
+ static toast(msg) {
+ Taro.showToast({
+ title: msg,
+ icon: 'none',
+ mask: true,
+ duration: 2000,
+ });
+ }
+
+ /**
* 读取文件 base64
* @param {File} file
* @return {Promise<string>}
@@ -48,116 +62,6 @@
reader.onerror = error => reject(error);
reader.readAsDataURL(file);
});
- }
-
- /**
- * 关闭页面 loading
- */
- static closePageLoading() {
- const $Loading = document.getElementById('loading');
- $Loading.className = 'loading off';
- setTimeout(() => {
- if ($Loading.parentNode) {
- $Loading.parentNode.removeChild($Loading);
- }
- }, 300);
- }
-
- /**
- * 计算浏览器滚动条宽度
- * @param {HTMLElement} elm
- * @return {Number}
- */
- static getScrollbarWidth(elm) {
- // 传入了元素，计算元素滚动条宽度
- if (elm) {
- return elm.offsetWidth - elm.clientWidth;
- }
- // 没传入元素，计算系统滚动条宽度
- else {
- let dom = document.createElement('div'),
- styles = {
- width: '100px',
- height: '100px',
- // 设置滚动条
- overflowY: 'scroll',
- }, i, scrollbarWidth;
- for (i in styles) dom.style[i] = styles[i];
- document.body.appendChild(dom);
- scrollbarWidth = dom.offsetWidth - dom.clientWidth;
- dom.remove();
- return scrollbarWidth;
- }
- }
-
- /**
- * 设置元素样式
- * @param {HTMLElement} elm
- * @param {Object} styles
- */
- static setElementStyles(elm, styles) {
- Object.keys(styles).forEach(prop => {
- elm.style[prop] = styles[prop];
- });
- }
-
- /**
- * 创建 css 带前缀样式
- * @param {String} key
- * @param {String} value
- * @return {Object}
- */
- static createPrefixesCss(key, value) {
- return {
- ['Webkit' + key.substr(0, 1).toUpperCase() + key.substr(1)]: value,
- ['Moz' + key.substr(0, 1).toUpperCase() + key.substr(1)]: value,
- key: value,
- };
- }
-
- /**
- * 创建 transform translate3d 样式
- * @param {Number} x = 0
- * @param {Number} y = 0
- * @param {Number} z = 0
- * @return {Object}
- */
- static createTransformTs3d(x = 0, y = 0, z = 0) {
- return Tools.createPrefixesCss('transform', `translate3d(${x}px, ${y}px, ${z}px)`);
- }
-
- /**
- * 获取元素计算后的样式
- * @param {HTMLElement} element
- * @param {String} styleName
- * @return {String}
- */
- static getComputedStyle(element, styleName) {
- if (element.currentStyle) {
- return element.currentStyle[styleName];
- } else {
- return window.getComputedStyle(element, null)[styleName] ||
- document.defaultView.getComputedStyle(element, null)[styleName];
- }
- }
-
- /**
- * 判断元素是否在容器内
- * @param {HTMLElement} targetElm
- * @param {HTMLElement} containerElm
- * @return {Boolean}
- */
- static isElementInsideContainer(targetElm, containerElm) {
- let inside = false;
- while (targetElm.parentElement) {
- if (targetElm.parentElement === containerElm) {
- inside = true;
- break;
- } else {
- targetElm = targetElm.parentElement;
- }
- }
- return inside;
}
/**
--
Gitblit v1.9.1