Cannot Use Notifydatasetchanged To Update Adapter
I cannot update my ListView after deleting an item. Listview item gets deleted from database but I cannot update my adapter and it keeps showing deleted item in listView. if I put
Solution 1:
Solution 1 (Preferred)
notifyDataSetChanged
is not available for SimpleAdapter
.
SimpleAdapter
is meant for static data. You should use a different type of adapter, like ArrayAdapter
. More information is here
Solution 2
Call this method instead of adapter.notifyDataSetChanged();
publicvoidrefreshList(){
List<TRListFormat> list = trDb.getAllReminders();
items = newArrayList<>();
for (TRListFormat val : list) {
HashMap<String, String> map = newHashMap<>();
map.put("title",val.getTitle());
map.put("description", val.getDes());
map.put("date", val.getDate());
map.put("time", val.getTime());
items.add(map);
}
adapter = newSimpleAdapter(this, items, R.layout.tr_list_format,
newString[] { "title", "description", "date", "time" },
new int[] {R.id.tbr_title, R.id.tbr_des, R.id.tbr_date, R.id.tbr_time });
lv.setAdapter(adapter);
}
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