2013-03-14 50 views
2

我正在開發一個iPhone應用程序,用戶可以在Xcode中使用PhoneGap和HTML下載文件(.pdf,.docx等),然後查看它們是否在線(),其中基本上用戶通過網站查看文件()或'離線'(),用戶已經預先下載了它們,現在正在下載什麼文件,並且可以從設備的LocalFileSystem中查看文件。我可以下載一個.txt文件。使用PhoneGap下載PDF以便離線觀看?

function downloadEditFile() { 
     var fileDownloadEdit = new FileTransfer(); 
     var uri = encodeURI("http://dl.dropbox.com/u/97184921/editme.txt"); 

     fileDownloadEdit.download(
       uri, 
       pathToRoot + '/editme.txt', 
       function(entry) { 
        console.log("download complete: " + entry.fullPath); 
        alert("File Downloaded. Click 'Read Editable Downloaded File' to see text"); 
       }, 
       function(error) { 
        console.log("download error source " + error.source); 
        console.log("download error target " + error.target); 
        console.log("upload error code" + error.code); 
       } 
     ); 
    } 

但是當我嘗試開發它下載一個.pdf文件時,它會中斷。我需要幫助,我在哪裏出錯?我真正所做的是將文件名更改爲Holidays.pdf,但console出來說,

2013-03-14 11:06:47.921 TestApp1[265:15b03] -[CDVFileTransfer download:] [Line 313] File Transfer downloading file... 
2013-03-14 11:06:48.553 TestApp1[265:15b03] File Transfer Finished with response code 404 
2013-03-14 11:06:48.553 TestApp1[265:15b03] -[CDVFileTransferDelegate connectionDidFinishLoading:] [Line 437] Write file /Users/administrator/Library/Application Support/iPhone Simulator/6.1/Applications/AF96D141-0CE5-4D60-9FA8-8A8F9A999C81/Documents/Holidays.pdf 
2013-03-14 11:06:48.554 TestApp1[265:15b03] FileTransferError { 
code = 3; 
"http_status" = 404; 
source = "http://dl.dropbox.com/u/97184921/Internship%2520Stuff/Holidays.pdf"; 
target = "/Users/administrator/Library/Application Support/iPhone Simulator/6.1/Applications/AF96D141-0CE5-4D60-9FA8-8A8F9A999C81/Documents/Holidays.pdf"; 
} 
2013-03-14 11:06:48.556 TestApp1[265:15b03] [LOG] download error source http://dl.dropbox.com/u/97184921/Internship%2520Stuff/Holidays.pdf 
2013-03-14 11:06:48.556 TestApp1[265:15b03] [LOG] download error target /Users/administrator/Library/Application Support/iPhone Simulator/6.1/Applications/AF96D141-0CE5-4D60-9FA8-8A8F9A999C81/Documents/Holidays.pdf 
2013-03-14 11:06:48.557 TestApp1[265:15b03] [LOG] upload error code3 

怎麼回事?我相當新的Xcode和PhoneGap所以任何幫助都將是偉大的:)

這裏是確切的JavaScript下載PDF文件;

function downloadPDFFile() { 
     var fileDownloadPDF = new FileTransfer(); 
     var uri = encodeURI("http://dl.dropbox.com/u/97184921/Internship%20Stuff/Holidays.pdf"); 

     fileDownloadPDF.download(
            uri, 
            pathToRoot + '/Holidays.pdf', 
            function(entry) { 
            console.log("download complete: " + entry.fullPath); 
            alert("File Downloaded. Click 'Read Editable Downloaded File' to see text"); 
            }, 
            function(error) { 
            console.log("download error source " + error.source); 
            console.log("download error target " + error.target); 
            console.log("upload error code" + error.code); 
            } 
           ); 
    } 

和我用來調用函數的HTML是;

<button onclick="downloadPDFFile();">Download PDF File</button> <br> 
+0

我收到FileTransfer未定義的錯誤。有沒有第三方庫,你正在使用這個或什麼? – 2014-01-16 04:08:05

回答

1

它看起來像你的URL是錯誤的。我認爲JS實際上是翻譯URI字符串中的%。 (JS的第3行)

如果你看看控制檯輸出中的URL,它是「Internship%2520 ...」而不是「Internship%20」。 很確定這就是爲什麼你在文件上得到404這顯然意味着它不能被下載。

重命名您的數據夾文件夾中沒有空格...使用下劃線或只是將它全部組成一個單詞。

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