/**
* Pushes data into list adapter.
*
* @param data the data to push
*/
@UiThread
protected void updateListView(PaginatedList<Artist> data) {
if (loadingProgressBar.getVisibility() == View.VISIBLE)
loadingProgressBar.setVisibility(View.INVISIBLE);
if (data.getCount() <= 0) {
Toast.makeText(this, "No singer was found", Toast.LENGTH_LONG).show();
this.finish();
return;
}
if (artistsFound == null) artistsFound = new PaginatedList<Artist>(data);
else artistsFound.addItems(data.getItems());
list = (ListView) findViewById(android.R.id.list);
// If the adapter doesn't exist, we create one with the initial data.
// If it exists, we update it.
int currentPosition = -1;
if (adapter == null) {
adapter = new ArtistsListAdapter(this, data.getItems());
} else {
currentPosition = list.getFirstVisiblePosition();
adapter.addItems(data.getItems());
}
list.setAdapter(adapter);
list.setSelectionFromTop(currentPosition + 1, 0);
if (artistsFound.getPaging().isLast()) list.removeFooterView(loadMoreProgress);
this.isLoading = false;
}
@Background
protected void loadMore() {
this.isLoading = true;
PaginatedList<Artist> searchResult = PaginatedList.empty();
try {
if (!artistsFound.getPaging().isLast()) {
searchResult =
artistService.search(query, 50, artistsFound.getPaging().getActualPage() + 1);
artistsFound.getPaging().setActualPage(artistsFound.getPaging().getActualPage() + 1);
}
} catch (NoInternetConnectionException e) {
showNoInternetMessage();
e.printStackTrace();
} catch (LazyInternetConnectionException e) {
showLazyInternetMessage();
e.printStackTrace();
} catch (Exception e) {
this.alert(e.getMessage());
e.printStackTrace();
}
updateListView(searchResult);
}
@Background
protected void listArtists(String query) {
this.isLoading = true;
PaginatedList<Artist> searchResult = PaginatedList.empty();
this.query = query;
try {
searchResult = artistService.search(query);
} catch (NoInternetConnectionException e) {
showNoInternetMessage();
e.printStackTrace();
} catch (LazyInternetConnectionException e) {
showLazyInternetMessage();
e.printStackTrace();
} catch (Exception e) {
this.alert(e.getMessage());
e.printStackTrace();
}
updateListView(searchResult);
}
@Override
protected void onListEndAchieved() {
if (artistsFound == null) return;
if (!artistsFound.getPaging().isLast() && !this.isLoading) this.loadMore();
}