PhoneGap Build：在Android上插件不工作（获取“未定义”错误） [英] PhoneGap Build: Plugins not working (getting "undefined" errors) on Android

问题描述

我在这里有一个非常讨厌的问题。每次，我尝试在我的项目中使用文件和文件传输插件，我得到未捕获的类型错误：无法读取属性'dataDirectory'未定义错误，试图获取数据目录 store = cordova.file.dataDirectory; 。现在，我一直在试图解决我的问题几个小时，但我找不到任何帮助。我也使用条码扫描器插件在这个项目，它的工作方式像一个魅力。我使用PhoneGap 3.6.3和jQuery Mobile 1.4.4。因为我是新的PhoneGap，它很可能是我缺少一些重要的东西...

I've got a really nasty problem here. Every time, I try to use the file and file-transfer plugins in my project, I get the Uncaught TypeError: Cannot read property 'dataDirectory' of undefined error while trying to get the data directory with store = cordova.file.dataDirectory; . Now, I've been trying to solve my problem for hours, but I couldn't find any help. I'm also using the Barcode Scanner plugin in this project an it's working like a charm. I am using PhoneGap 3.6.3 and jQuery Mobile 1.4.4. Since i'm new to PhoneGap, it's likely that I'm missing something important...

我已经在我的config.xml包括这样的插件： / p>

I've included the plugins in my config.xml like this:

<gap:plugin name="org.apache.cordova.file" version="1.3.1" />
<gap:plugin name="org.apache.cordova.file-transfer" version="0.4.6" />

也许这可能是一个提示：Windows Phone的PhoneGap Build日志确认插件正在添加。但是它似乎并没有添加到Android版本，因为我不能在生成日志中找到他们的任何引用。

Maybe this could be a hint: The PhoneGap Build log for Windows Phone is confirming that the plugins are being added. But it appears that they're not being added to the Android build, since I can't find any reference of them in the build log.

Windows Phone日志：

Windows Phone Log:

添加www\plugins\org.apache.cordova.file-transfer\www\FileTransfer.js

Adding www\plugins\org.apache.cordova.file-transfer\www\FileTransfer.js

添加www\plugins\org.apache.cordova.file-transfer\www\FileTransferError.js

Adding www\plugins\org.apache.cordova.file-transfer\www\FileTransferError.js

添加www\plugins\org.apache.cordova.file\www\File.js

Adding www\plugins\org.apache.cordova.file\www\File.js

这是我的一部分index.js，不包括条形码扫描器功能。

This is a part of my index.js, excluding the Barcode Scanner functionality.

var app = {
    // Application Constructor
    initialize: function() {
        this.bindEvents();
    },
    // Bind Event Listeners
    bindEvents: function() {
        document.addEventListener('deviceready', this.onDeviceReady, false);
        document.getElementById('download').addEventListener('click', this.downloadFile, false);
        document.getElementById('scan').addEventListener('click', this.scan, false);
        document.getElementById('encode').addEventListener('click', this.encode, false);
    },
    onDeviceReady: function() {
        app.receivedEvent('deviceready');
    },


    // Update DOM on a Received Event
    receivedEvent: function(id) {
        var parentElement = document.getElementById(id);
        var listeningElement = parentElement.querySelector('.listening');
        var receivedElement = parentElement.querySelector('.received');

        listeningElement.setAttribute('style', 'display:none;');
        receivedElement.setAttribute('style', 'display:block;');

        console.log('Received Event: ' + id);
    },
    downloadFile: function(){       
        //The directory to store data
        var store;

        //Used for status updates
        var $status;

        //URL of our asset
        var assetURL = "https://www.dropbox.com/s/d4s8mnkfwdqylns/test.txt?dl=0";

        //File name of our important data file we didn't ship with the app
        var fileName = "test.txt";
        document.addEventListener("deviceready", init, false);
        function init() {
             $status = document.querySelector("#fileStatus");

            $status.innerHTML = "Checking for file";

            store = cordova.file.dataDirectory;

            //Check for the file. 
            window.resolveLocalFileSystemURL(store + fileName, appStart, downloadAsset);

        }

        function downloadAsset() {
             var fileTransfer = new FileTransfer();
             console.log("About to start transfer");
             fileTransfer.download(assetURL, store + fileName, 
         function(entry) {
             console.log("Success!");
             appStart();
        }, 
        function(err) {
            console.log("Error");
            console.dir(err);
      });
    }
    function appStart() {
        $status.innerHTML = "Datei aktuell";
    }
},

// [...Functions for Barcode scanner...]
};

我还在我的index.html中包含phonegap.js文件：

I've also included the phonegap.js file in my index.html:

<body>
...
<script type="text/javascript" charset="utf-8" src="phonegap.js"></script>
<script type="text/javascript" src="js/index.js"></script>
<script type="text/javascript">
    app.initialize();
</script>
</body>

我真的希望有人能帮我解决我的问题。

I really hope someone can help me solve my problem.

推荐答案

我一直认为你需要先调用

I've always thought that you need to first call

window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, onError);

为 cordova.file resolveLocalFileSystemURL 。

在您的情况下，尝试修改

So in your case, try this modification

function onFileSystemSuccess() {
    store = cordova.file.dataDirectory;

    //Check for the file. 
    window.resolveLocalFileSystemURL(store + fileName, appStart, downloadAsset);
}
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, onError);

这篇关于PhoneGap Build：在Android上插件不工作（获取“未定义”错误）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！