由于开发需要OC或Java与JS间的交互，原理是:JS给OC/Java提供公开的API, 在OC/Java中可以手动调用此API, 并且可以接收OC/Java中传过来的参数,同时可回调OC/Java
ios与JS的交互案例A
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| <!doctype html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="user-scalable=no, width=device-width, initial-scale=1.0, maximum-scale=1.0">
<style>
body{
background-color:paleturquoise;
}
button{
border:0;
width: 150px;
height: 35px;
background-color: orangered;
color: white;
font-size: 16px;
border-radius: 6px;
}
</style>
</head>
<body>
<h2>JS调用OC中的方法</h2>
<button id="btn">访问OC相册</button>
<button id="btn1">调用OC提示窗</button>
<p></p>
</body>
<script>
// 这段代码是固定的，必须要放到js中
function setupWebViewJavascriptBridge(callback) {
if (window.WebViewJavascriptBridge) { return callback(WebViewJavascriptBridge); }
if (window.WVJBCallbacks) { return window.WVJBCallbacks.push(callback); }
window.WVJBCallbacks = [callback];
var WVJBIframe = document.createElement('iframe');
WVJBIframe.style.display = 'none';
WVJBIframe.src = 'wvjbscheme://__BRIDGE_LOADED__';
document.documentElement.appendChild(WVJBIframe);
setTimeout(function() { document.documentElement.removeChild(WVJBIframe) }, 0)
}
// 与OC交互的所有JS方法都要在这里注册,才能让OC和JS之间相互调用
setupWebViewJavascriptBridge(function(bridge) {
/* JS给OC提供公开的API, 在OC中可以手动调用此API, 并且可以接收OC中传过来的参数,同时可回调OC */
// 获取用户信息
bridge.registerHandler('getUserInfo', function(data, responseCallback) {
console.log("OC中传递过来的参数:", data);
// 把处理好的结果返回给OC
responseCallback({"userID":"DX001", "userName":"旋之华", "age":"18", "otherName":"旋之华"})
});
// 弹框输出（这里的数据是ios端返回的值）
bridge.registerHandler('alertMessage', function(data, responseCallback) {
alert(data);
});
// 动态跳转到京东商城
bridge.registerHandler('pushToNewWebSite', function(data, responseCallback) {
window.location.href = data.url;
});
bridge.registerHandler('insertImgToWebPage', function(data, responseCallback) {
var img = document.createElement('img');
img.src = data.url;
img.width = 200;
document.body.appendChild(img);
});
/* OC给JS提供公开的API, 在JS中可以手动调用此API, 并且可以接收OC中传过来的参数,同时可回调OC */
// 调用OC中的打开相册方法（传数据给ios）
document.getElementById('btn').onclick = function () {
bridge.callHandler('openCamera', {'count':'10张'}, function responseCallback(responseData) {
console.log("OC中返回的参数:", responseData)
});
};
document.getElementById('btn1').onclick = function () {
bridge.callHandler('showSheet', '', function responseCallback(responseData) {
console.log("OC中返回的参数:", responseData)
});
};
})
</script>
</html>
|
ios与JS的交互案例B
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| //**********************
/*苹果设备回调*/
//注册WebViewJavascriptBridge
// 这段代码是固定的，必须要放到js中
function setupWebViewJavascriptBridge(callback) {
if (window.WebViewJavascriptBridge) { return callback(WebViewJavascriptBridge); }
if (window.WVJBCallbacks) { return window.WVJBCallbacks.push(callback); }
window.WVJBCallbacks = [callback];
var WVJBIframe = document.createElement('iframe');
WVJBIframe.style.display = 'none';
WVJBIframe.src = 'wvjbscheme://__BRIDGE_LOADED__';
document.documentElement.appendChild(WVJBIframe);
setTimeout(function() { document.documentElement.removeChild(WVJBIframe) }, 0)
}
function testClick1(code,msg,page) {
//JS代码
// 与OC交互的所有JS方法都要在这里注册,才能让OC和JS之间相互调用
setupWebViewJavascriptBridge(function(bridge) {
// 弹框输出（获得返回的数据）
bridge.registerHandler('alertMessage', function(data, responseCallback) {
if(data.code==0){
$('.tip').html('<span class="gr">注册成功，3秒后自动跳转</span>');
$('.register').unbind('click');
setTimeout(function(){
window.location.href='/Login/index.html';
},3000);
}else{
$('.tip').html('<span class="re">'+data.tishi+'</span>');
}
});
//JS换行
//获得Button
/*苹果方法调用传递数据*/（传递数据给ios）
//JS代码调用OC"mpTestObjcCallBack"的Handler,并传递参数{'foo': 'bar'} 如果有回调还会显示出来
bridge.callHandler('mpTestObjcCallBack',{code:code,msg:msg,page:page}, function(response) {
console.log('JS获得OC返回的结果：', response);
// alert(data);
});
});
}
|
java与JS的交互案例
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| var maincode='0',
host = window.location.host,
mainmsg = {url:'http://'+host,phone:phone,type:2,pwd:pwd,yzm:yzm},
page = 'register';//页面名称
testClick(maincode,mainmsg,page);
/*安卓回调app设备(发消息给安卓)*/
function testClick(code,msg,page) {
var data = {code:code,msg:msg,page:page};
window.WebViewJavascriptBridge.send(
data
, function(responseData) {
document.getElementById("show").innerHTML = "repsonseData from java, data = " + responseData
}
);
}
//安卓发消息给h5，方法注册
function connectWebViewJavascriptBridge(callback) {
if (window.WebViewJavascriptBridge) {
callback(WebViewJavascriptBridge)
} else {
document.addEventListener(
'WebViewJavascriptBridgeReady'
, function() {
callback(WebViewJavascriptBridge)
},
false
);
}
}
connectWebViewJavascriptBridge(function(bridge) {
/*安卓方调用方法*/
bridge.registerHandler("functionInJs", function(data, responseCallback) {
alert(data);
var responseData = "Javascript Says Right back aka!";
responseCallback(responseData);
});
})
|
