How to update an item from ArrayList on ArrayAdapter in Android

问题

I am new at developing Android.I have a ListView and custom ArrayAdapter which holds an arraylist.I want to update arraylist specific item by position.How can I handle please help me thanks in advance.

回答1:

Assuming your adapter is storing a List of Foo objects.

Foo item = mAdapter.getItem(position);
item.setValue("blah");  //Or whatever you need to update
mAdapter.notifyDataSetChanged();

来源：https://stackoverflow.com/questions/27344840/how-to-update-an-item-from-arraylist-on-arrayadapter-in-android