Copy file to a path with Cordova Hybrid app

Question

Context: I am developing hybrid app with Cordova 6 and SAPUI5 Framework (for now only need to worry about Android).

What I want: Copy/move a file to a path fast. Maybe getting a FileEntry from a File/Blob object from a FileUploader on sapui5.

Input: FileUploader

Output: File Object So I get the file when I select it by doing the following:

sap.ui.getCore().byId('file-uploader-id').oFileUpload.files[0];

So then I have to copy it to another location: "cordova.file.externalCacheDirectory". But FileUploader doesn't provide a fullpath value for the selected item (for security reasons).

What I tried:

        var sPath = URL.createObjectURL(oFile);
        var pCopyFrom = new Promise((resolve, reject) => {
            window.resolveLocalFileSystemURL(sPath, resolve, reject);
        });

        var pCopyTo = new Promise((resolve, reject) => {
            var sExternalCachePath = cordova.file.externalCacheDirectory;
            window.resolveLocalFileSystemURL(sMediaPath, resolve, reject);
        });

        Promise.all([pCopyFrom, pCopyTo]).then(aValues => {
            aValues[0].moveTo(aValues[1], aValues[0].name, cbSuccess, cbError);
        });

Result:

Solution seems to don't work because the generated path is not available (error code 5), this path is not valid for use it like this.

Possible solutions:

Extract the path of the file object by another way.
Use another input that can provide this path (until now I did not find any).
Find the path of the file using the filename or maybe the size or something recursively at the phone.

What is the current solution (But really slow):

Write the file with FileWritter. If I have the path and I use the above code to a video (of 5 seconds of duration) it spends less than 1 second (thanks to FileEntry) to copy/move it (using a camera capture or video capture with cordova-plugin-media-capture that gives the path of the file), while using FileWritter method it spends like 10 seconds to write it.

Thank you by reading. I will upload any new as I have it.

score 2 · Accepted Answer · answered Oct 15 '18 at 15:58

The final solution is the second option that I said on the question, changing the input method:

Instead of using the FileUploader as input, use a plugin called File Selector.

You can get the FileName, URI, Mime type and the file extension

So now I can move/copy the file faster with the FileEntry.

Anyway I will update this answer if I find something relevant to this theme.

Thanks.

Copy file to a path with Cordova Hybrid app

1 Answers1