如何使用PhoneGap下载并保存android SdCard中的文件（APK）？

Question

我正在尝试从服务器网址下载并保存apk。但我无法下载并保存。你能帮帮我吗？

代码：

onDeviceReady: function() {

window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, gotFS, fail);
app.receivedEvent('deviceready');
myApp.start(); //this is where I put the call to my App's functionality relying on device APIs
}


    function gotFS(fileSystem) {
            window.fileSystem = fileSystem;
            fileSystem.root.getDirectory(window.appRootDirName, {
                create: true,
                exclusive: false
            }, dirReady, fail);
        }

        function dirReady(entry) {
            window.appRootDir = entry;
            console.log("application dir is ready");
           // alert("ready");
             var fileTransfer = new FileTransfer();

            var url = "http://www.something.org/Android/Sample.apk";

            var filePath = window.appRootDir.toURL() + "Sample.apk";
                            alert(filePath);

             var uri = encodeURI(url.android);
            fileTransfer.download(
            uri, filePath, function(entry) {
                alert("download complete: " + entry.fullPath);

        window.plugins.webintent.startActivity({
        action: window.plugins.webintent.ACTION_VIEW,
        url: 'file://' + entry.fullPath,
        type: 'application/vnd.android.package-archive'
        },
        function(){
            console.log("Success");
        },
        function(e){
            alert('Error launching app update');
        }
    );          


            }, function(error) {
                alert("download error" + error.codename);
            });
        }

Answer 1

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