Problem of local in BB10

Hello

I now use Async API to access the data of an image file and then write it on file system temporary application, so that I can access the same then:

() window.requestFileSystem
LocalFileSystem.TEMPORARY,
0,
Reminder of the success
onPhotoWriterFileSystemReady,
Reminder of failure
failureCallback);

Writer of local file for imagedata
He wrote the image as a text file: userpic.txt
function onPhotoWriterFileSystemReady (fileSystem) {}
() fileSystem.root.getFile
imageFilename,
{create: true},
Reminder of the success
onPhotoWriterFileEntryReady,
Reminder of failure
errorCallback);

Between in the queue and initializes the writer for writing on file.
function onPhotoWriterFileEntryReady (fileEntry) {}
() fileEntry.createWriter
Reminder of the success
onPhotoWriterFileWriterReady,
Reminder of failure
failureCallback);

Writes base64 on local file data.
function onPhotoWriterFileWriterReady (writer) {}
Writer.onwrite = {function (evt)}
setPhotoToDiv (pictureDataBase64);
};

Writer.Write (pictureDataBase64);
}
}
}

the code above fails to writer.onwrite () (means write operation failed), when I install the application and launch it for the first time. but on the launches subsequent write is successful.

Why is the difference? What is the job that I have to avoid this kind of problem in my application, please suggest me.

Hi lathajagan,

I noticed that you pass 0 as the size when calling requestFileSystem(). Maybe that's why the write fails (it usually raises an error QUOTA_EXCEEDED).

Try the following:

requestFileSystem(TEMPORARY,1024*1024,success,error)

Tags: BlackBerry Developers

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