Launching PDF reader on windows phone 8

Question

I\'m trying to launch pdf reader with the code below but it does not work. Can somebody help me?

    private async Task WriteData(string fileN         


        

Answer 1

Called the API and saved the byte array to file

    public static async void WriteDataToIsolatedStorageFile(string fileName, byte[] data)
    {
        using (IsolatedStorageFile storageFile = IsolatedStorageFile.GetUserStoreForApplication())
        {
            using (IsolatedStorageFileStream stream = storageFile.OpenFile(fileName, FileMode.Create))
            {
                if ((data != null) && (data.Length > 0))
                {
                    await stream.WriteAsync(data, 0, data.Length);
                }
            }
        }
    }

opened the file in pdf reader using

    private async void StartExternalPDFApp()
    {
        StorageFolder localFolder = await FileManager.FindDirectory(FileManager.RelativeStorageDirectoryLocalStorage);
        StorageFile storageFile = await localFolder.GetFileAsync(PdfFileName);
        await Windows.System.Launcher.LaunchFileAsync(storageFile);
    }

localFolder is Windows.Storage.ApplicationData.Current.LocalFolder