我希望我的ListView能夠在向上滾動時更新新條目(例如Facebook做這件事的方式)。我怎麼能做到這一點?如何在向上滾動時更新列表視圖?
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// Inflate the layout
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View rowView = inflater.inflate(R.layout.list_single, parent, false);
ImageView image = (ImageView) rowView.findViewById(R.id.picture);
TextView firstline = (TextView) rowView.findViewById(R.id.firstline);
TextView secondline = (TextView) rowView.findViewById(R.id.secondline);
// Get information about the report
AnimalLocationLog current = objects.get(position);
// Get all the important information
String species = current.getSpecies();
String sanitizedSpecies = MiscHelpers.sanitizeString(species);
int reportId = objects.get(position).getTrackerId();
// Construct the URL to the image
String imageLocation = websiteUrl + sanitizedSpecies + separator + reportId + extension;
// Display user report
downloader.download(imageLocation, image);
firstline.setText(species);
secondline.setText("Spotted " + current.getDateTime().toString("yyyy-MM-dd H:m"));
return rowView;
}
@Merlevede我不是。花些時間閱讀這個問題! – chuckfinley