微信 之短信、邮件、外部网页等拉起小程序

一、效果图

1、公众号

 2、短信

将跳转的链接生成短链接

二、代码

1、h5代码

<html>
<head>
    <title>打开小程序</title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1, maximum-scale=1">
    <script>
        window.onerror = e => {
            console.error(e)
            alert('发生错误' + e)
        }
    </script>
    <!-- weui 样式 -->
    <link rel="stylesheet" href="https://res.wx.qq.com/open/libs/weui/2.4.1/weui.min.css"></link>
    <!-- 调试用的移动端 console -->
    <!-- <script src="https://cdn.jsdelivr.net/npm/eruda"></script> -->
    <!-- <script>eruda.init();</script> -->
    <!-- 公众号 JSSDK -->
    <script src="https://res.wx.qq.com/open/js/jweixin-1.6.0.js"></script>
    <script>
        function docReady(fn) {
            if (document.readyState === 'complete' || document.readyState === 'interactive') {
                fn()
            } else {
                document.addEventListener('DOMContentLoaded', fn);
            }
        }

        docReady(async function() {
            var ua = navigator.userAgent.toLowerCase()
            var isWXWork = ua.match(/wxwork/i) == 'wxwork'
            var isWeixin = !isWXWork && ua.match(/micromessenger/i) == 'micromessenger'
            var isMobile = false
            var isDesktop = false
            if (navigator.userAgent.match(/(phone|pad|pod|iPhone|iPod|ios|iPad|Android|Mobile|IEMobile)/i)) {
                isMobile = true
            } else {
                isDesktop = true
            }

            if (isWeixin) {
                var containerEl = document.getElementById('wechat-web-container')
                containerEl.classList.remove('hidden')
                containerEl.classList.add('full', 'wechat-web-container')

                var launchBtn = document.getElementById('launch-btn')
                launchBtn.addEventListener('ready', function (e) {
                    console.log('开放标签 ready')
                })
                launchBtn.addEventListener('launch', function (e) {
                    console.log('开放标签 success')
                })
                launchBtn.addEventListener('error', function (e) {
                    console.log('开放标签 fail', e.detail)
                })

                wx.config({
                    //debug: true, // 调试时可开启
                    appId: '<?php echo $signPackage["appId"]?>',
                    timestamp: '<?php echo $signPackage["timestamp"]?>',
                    nonceStr: '<?php echo $signPackage["nonceStr"]?>',
                    signature: '<?php echo $signPackage["signature"]?>',
                    jsApiList: ['chooseImage'], // 必填,随意一个接口即可
                    openTagList:['wx-open-launch-weapp'], // 填入打开小程序的开放标签名
                })
            } else if (isDesktop) {
                // 在 pc 上则给提示引导到手机端打开
                var containerEl = document.getElementById('desktop-web-container')
                containerEl.classList.remove('hidden')
                containerEl.classList.add('full', 'desktop-web-container')
            }  else {
                var buttonEl = document.getElementById('public-web-jump-button')
                var buttonLoadingEl = document.getElementById('public-web-jump-button-loading')
                try {
                    await openWeapp(() => {
                        buttonEl.classList.remove('weui-btn_loading')
                        buttonLoadingEl.classList.add('hidden')
                    })
                } catch (e) {
                    buttonEl.classList.remove('weui-btn_loading')
                    buttonLoadingEl.classList.add('hidden')
                    throw e
                }
            }
        })

        async function openWeapp(onBeforeJump) {
            if (onBeforeJump) {
                onBeforeJump()
            }
            location.href = "urlscheme"
        }
    </script>
    <style>
        .hidden {
            display: none;
        }

        .full {
            position: absolute;
            top: 0;
            bottom: 0;
            left: 0;
            right: 0;
        }

        .public-web-container {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .public-web-container p {
            position: absolute;
            top: 40%;
        }

        .public-web-container a {
            position: absolute;
            bottom: 40%;
        }

        .wechat-web-container {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .wechat-web-container p {
            position: absolute;
            top: 40%;
        }

        .wechat-web-container wx-open-launch-weapp {
            position: absolute;
            bottom: 40%;
            left: 0;
            right: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .desktop-web-container {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .desktop-web-container p {
            position: absolute;
            top: 40%;
        }
    </style>
</head>
<body>
<div class="page full">
    <div id="public-web-container" class="hidden">
        <p class="">正在打开 “博远企信”...</p> <!-- replace -->
        <a id="public-web-jump-button" href="javascript:" class="weui-btn weui-btn_primary weui-btn_loading" onclick="openWeapp()">
            <span id="public-web-jump-button-loading" class="weui-primary-loading weui-primary-loading_transparent"><i class="weui-primary-loading__dot"></i></span>
            打开小程序
        </a>
    </div>
    <div id="wechat-web-container" class="hidden">
        <p class="">点击以下按钮打开 “博远企信”</p> <!-- replace -->
        <!-- 跳转小程序的开放标签。文档 https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/Wechat_Open_Tag.html -->
        <wx-open-launch-weapp id="launch-btn" username="gh原始ID" path="打开页面"> <!-- replace -->
            <template>
                <button style=" 200px; height: 45px; text-align: center; font-size: 17px; display: block; margin: 0 auto; padding: 8px 24px; border: none; border-radius: 4px; background-color: #07c160; color:#fff;">打开小程序</button>
            </template>
        </wx-open-launch-weapp>
    </div>
    <div id="desktop-web-container" class="hidden">
        <p class="">请在手机打开网页链接</p>
    </div>
</div>
</body>
</html>

2、获取小程序scheme码

public function getGenerateScheme($jump_wxa, $is_expire = false)
{
    $url = "https://api.weixin.qq.com/wxa/generatescheme?access_token=".$this->access_token;
    $data = array(
        "jump_wxa" => $jump_wxa,
        "is_expire" => $is_expire,
        "expire_time" => time()
    );
    $res = json_decode($this->curl_request($url, json_encode($data), 'post'), true);
    if ($res['errcode'] == 0) {
        return $res['openlink'];
    }
    return $res['errmsg'];
}
原文地址:https://www.cnblogs.com/yang-2018/p/14585597.html