private void updateListView(int position) {
List<DownloadJob> jobs = null;
switch (position) {
case 1:
jobs = mDownloadMan.getQueuedDownloads();
break;
case 2:
jobs = mDownloadMan.getCompletedDownloads();
break;
default:
jobs = mDownloadMan.getAllDownloads();
break;
}
if (lastNavPosition == position && jobs != null && jobs.size() == mAdapter.getCount()) {
mAdapter.notifyDataSetChanged();
} else {
mAdapter.setData((ArrayList<DownloadJob>) jobs);
mListView.setVisibility(View.VISIBLE);
mStateView.setVisibility(View.GONE);
}
mBar.setTitle("共" + mAdapter.getCount() + "个下载项");
if (jobs.isEmpty()) {
mStateView.setText(getString(R.string.no_download));
mStateView.setVisibility(View.VISIBLE);
mListView.setVisibility(View.GONE);
}
}
// @Override
// public boolean onCreateOptionsMenu(Menu menu) {
// menu.add(0,R.id.edit_query,0,"编辑").setIcon(R.drawable.ic_menu_mark).setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
// return true;
// }
@Override
protected void onStart() {
super.onStart();
mDownloadMan.registerDownloadObserver(this);
mAdapter.notifyDataSetChanged();
}