uniapp message
时间: 2023-08-12 15:07:12 浏览: 79
引用[1]:在uni-app中,除了H5之外,其他平台不支持浏览器的js API,因此无法直接在App中使用window.addEventListener('message', function(event) {})来监听消息通知返回事件。[1]引用[3]中提供了一种解决方案,通过在App中使用plus.webview操作来监听扫码结果。具体的实现步骤如下:
1. 在uni-app项目根目录的hybrid->html文件夹下或者static目录下创建一个本地页面,页面中包含一个iframe元素,src属性指向浙里办二维码地址。
2. 在页面中引入uni的SDK,例如uni.webview.1.5.1.js。
3. 在页面中添加以下代码:
```
document.addEventListener('UniAppJSBridgeReady', function() {
var wv = plus.webview.currentWebview();
// 监听扫码结果
window.addEventListener('message', function(event) {
// 这里的event.data就是登录成功的信息
if (event.data && event.data.code) {
uni.postMessage({ data: event.data });
}
});
});
```
这样就可以在App中监听到扫码成功后的消息通知返回事件了。[3]
相关问题
uniapp tabBar
UniApp的tabBar是用来展示底部导航栏的组件,它可以让用户在不同页面之间进行快速切换。在UniApp中,你可以通过配置pages.json文件来创建tabBar。
首先,在pages.json文件中配置"tabBar"字段,如下所示:
```json
{
"pages": [
{
"path": "pages/home/home",
"name": "home"
},
{
"path": "pages/message/message",
"name": "message"
},
{
"path": "pages/mine/mine",
"name": "mine"
}
],
"tabBar": {
"color": "#999",
"selectedColor": "#333",
"backgroundColor": "#fff",
"list": [
{
"pagePath": "pages/home/home",
"text": "首页",
"iconPath": "static/tabbar/home.png",
"selectedIconPath": "static/tabbar/home-selected.png"
},
{
"pagePath": "pages/message/message",
"text": "消息",
"iconPath": "static/tabbar/message.png",
"selectedIconPath": "static/tabbar/message-selected.png"
},
{
"pagePath": "pages/mine/mine",
"text": "我的",
"iconPath": "static/tabbar/mine.png",
"selectedIconPath": "static/tabbar/mine-selected.png"
}
]
}
}
```
上述代码中,"pages"数组中配置了三个页面,分别是home、message和mine。在"tabBar"字段中,我们设置了底部导航栏的样式。"list"数组中的每个元素表示一个tab,包含了页面路径(pagePath)、显示文本(text)、默认图标(iconPath)和选中图标(selectedIconPath)等信息。
接下来,你需要在各个页面中使用`<view>`标签来定义页面的内容。在底部导航栏切换的时候,对应的页面内容会被显示出来。
以上就是UniApp中使用tabBar的基本配置方法。你可以根据实际需求进行样式和逻辑的扩展。希望能对你有所帮助!如果还有其他问题,请继续提问。
uniapp mqtt
Uniapp MQTT is a library or a plugin that allows developers to integrate MQTT (Message Queuing Telemetry Transport) protocol in a Uniapp project. MQTT is a lightweight messaging protocol that is commonly used in IoT (Internet of Things) applications, where devices need to communicate with each other or with a central server.
With Uniapp MQTT, developers can easily connect their Uniapp project to an MQTT broker, subscribe to topics, and publish messages. This plugin provides a simple and efficient way to implement real-time communication between devices or between devices and a server.
Uniapp MQTT supports both QoS (Quality of Service) levels, which ensures the reliability of message delivery, and TLS (Transport Layer Security) encryption, which provides secure communication over the internet. Furthermore, this plugin can handle topics with wildcards, allowing developers to subscribe to multiple topics at once.
Overall, Uniapp MQTT is a valuable tool for developers working on Uniapp projects that require real-time communication or IoT applications. It simplifies the integration of MQTT protocol and provides a reliable and secure communication channel between devices or between devices and a server.