jslib-tools
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js工具库 封装常用的工具函数 如深拷贝 时间转换日期格式化、浏览器判断等，提高开发效率
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<h1 class="page-title">Source: plugins/jsBridge/index.js</h1>
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<pre class="prettyprint source linenums"><code>/*
* @Author: zhangyu
* @Email: zhangdulin@outlook.com
* @Date: 2021-06-11 11:00:48
* @LastEditors: zhangyu
* @LastEditTime: 2021-06-16 18:07:04
* @Description:
*/
//JS注册事件监听
var initflag = false
function connectWebViewJavascriptBridge(callback) {
if (window.WebViewJavascriptBridge) {
callback(WebViewJavascriptBridge)
} else {
document.addEventListener(
'WebViewJavascriptBridgeReady'
, function() {
callback(WebViewJavascriptBridge)
},
false
);
}
}
//注册回调函数，第一次连接时调用 初始化函数
// connectWebViewJavascriptBridge(function(bridge) {
// //初始化
// bridge.init(function(message, responseCallback) {
// initflag = true
// var data = {
// 'Javascript Responds': 'Wee!'
// };
// // alert("jasdashjd");
// responseCallback(data);
// });
// })
/**
* @description: jsbridge callHandler
* @param {*} callHandlerData
* @param {*} name n请求的方法
* @param {*} data 请求时传的参数
* @return {*} function
*/
export function callHandler (callHandlerData={name:'', data:{}}) {
let _resolve
let _reject
// 生成promise对象，保留resolve，reject
const readyPromise = new Promise((resolve, reject) => {
_resolve = resolve
_reject = reject
})
connectWebViewJavascriptBridge(function(bridge) {
//初始化
if (!initflag) {
bridge.init(function(message, responseCallback) {
initflag = true
var data = {
'Javascript Responds': 'Wee!'
};
responseCallback(data);
});
try {
bridge.callHandler(callHandlerData.name, callHandlerData.data, (response) => {
// 调用成功，使用保留的resolve改变返回的promise状态
_resolve(response)
})
} catch (e) {
// 调用成功，使用保留的reject改变返回的promise状态
_reject(e)
}
} else {
try {
bridge.callHandler(callHandlerData.name, callHandlerData.data, (response) => {
// 调用成功，使用保留的resolve改变返回的promise状态
_resolve(response)
})
} catch (e) {
// 调用成功，使用保留的reject改变返回的promise状态
_reject(e)
}
}
})
return readyPromise
}
/*
* @Author: zhangyu
* @Email: zhangdulin@outlook.com
* @Date: 2021-06-11 11:00:48
* @LastEditors: zhangyu
* @LastEditTime: 2021-06-11 14:05:50
* @Description:
*/
// 注册方法获取WebViewJavascriptBridge对象
function setupWebViewJavascriptBridge(callback) {
if (window.WebViewJavascriptBridge) {
return callback(window.WebViewJavascriptBridge)
}
if (window.WVJBCallbacks) {
return window.WVJBCallbacks.push(callback)
}
// 兼容安卓
document.addEventListener(
'WebViewJavascriptBridgeReady',
() => callback(window.WebViewJavascriptBridge),
false
)
// 兼容ios
window.WVJBCallbacks = [callback]
var WVJBIframe = document.createElement('iframe')
WVJBIframe.style.display = 'none'
WVJBIframe.src = 'https://__bridge_loaded__'
document.documentElement.appendChild(WVJBIframe)
setTimeout(function() {
document.documentElement.removeChild(WVJBIframe)
}, 0)
}
// 获取WebViewJavascriptBridge对象
function getBirdge() {
return new Promise(resolve => {
if (window.WebViewJavascriptBridge) {
return resolve(window.WebViewJavascriptBridge)
}
setupWebViewJavascriptBridge(bridge => {
// 初始化
bridge.init(function(message, responseCallback) {
var data = {
'Javascript Responds': 'Wee!'
};
responseCallback(data);
});
resolve(bridge)
})
})
}
// 重写之后的birdge
/**
* @description: jsbridge callHandler
* @param {*} callHandlerData
* @param {*} name n请求的方法
* @param {*} data 请求时传的参数
* @return {*} function
*/
export default {
ctx: null, // WebViewJavascriptBridge
callHandler(callHandlerData={name:'', data:{}}) {
return new Promise(async resolve => {
if (!this.ctx) {
this.ctx = await getBirdge()
}
this.ctx.callHandler(callHandlerData.name, callHandlerData.data, res => resolve(res))
})
},
registerHandler(jsHandlerName) {
// 重写事件注册方法
this.ctx.registerHandler(jsHandlerName, (data, callback) => {
if (callback) {
callback(
`返回一个字符串，告诉ObjC：我已收到数据${JSON.stringify(data)}`
)
}
})
}
}
</code></pre>
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