private async Task <bool> ExecuteSaveDocumentsCommand()
{
if (DocsChangeIndexes.Count > 0)
{
using (var doc = _db.GetDocument(CoreApp.DocId))
using (var mdoc = doc.ToMutable())
using (var listItems = mdoc.GetArray(CoreApp.ArrKey)) {
foreach (var index in DocsChangeIndexes)
{
var item = Items[index];
var dictObj = listItems.GetDictionary(item.Index);
dictObj.SetString("key", item.Name);
dictObj.SetInt("value", item.Quantity);
var blob = new Blob("image/png", item.ImageByteArray);
dictObj.SetBlob("image", blob);
}
_db.Save(mdoc);
}
DocsChangeIndexes.Clear();
}
return(await Task.FromResult(true));
}
public async Task ExecuteImageChangedCommand(int index)
{
Stream stream = await DependencyService.Get <IPhotoPickerService>().GetImageStreamAsync();
if (stream == null)
{
return;
}
var item = _items[index];
using (var memoryStream = new MemoryStream()) {
stream.CopyTo(memoryStream);
item.ImageByteArray = memoryStream.ToArray();
}
DocsChangeIndexes.Add(item.Index);
}
