In my project i have a ListView for handling the list of a product. In that i have a list of 100 Items in that List view. Each and Every time i have been seeing the first row of the ListView..
If i need to see the data in the ListView Means, i need to scroll down, Can i focus directly to a particular item by any function by passing the position(ID) of the ListView..
For Example this is my ListView that contains 11 items in it..
I'm seeing every time the ListView as the following,..
And my try is, If i give the ListView position as ID=5 means, can i get the Focus of the ListView as follow, in the opening itself...
Can we get this by ListFragment method or anything else?
Suggest me for the Best..
try this, use setselection
listview.setSelection(position);
Don't know about ListFragment but in listview, you can use listview.setSelection(position);
This method will help you to achieve this
for example: listview.setSelection(5);
Related
I am having a custom list view. In general it shows some 5-6 data depending to the data. i want a small message in the end of a ListView saying "End of list of results". How to achieve that?
Use addFooterView method of ListView.
In my android application, I have one spinner box and two edit text box for adding item.When I click on add button all the data will store in database and display in below Item list (listview display in my first image) by refreshing listview.
My problem is, when I click on add button at a time only one list is display and listview heading is also gone.
May be this problem is raised due to refreshing of listview.
I searched on google and found notifyDataSetChanged() method is used for refreshing list view but I don't know how notifyDataSetChanged() method is used in fragment?
Does anybody know how to use this method in fragment?
I am new to fragment. In my app all the java code is developed using fragment activity, and xml file is simple layout.(LinearLayout/RelativeLayout)
You can see my screen here:
1)First image show list heading.
2)Second image show List item.
You need to setAdapter again to your listview after adding new data. it will show new data int listview.
if not get, post your code where you setAdapter to listview.
You have to first add item in Arraylist/List which you passed in Adapter then after you can call below code..
adapter.notifyDataSetChanged();
listView.invalidateViews();
I have a listview with many items(10 - 200 approx.), when I click on an item, I update its attributes and then update the listview. But as many items the update is a bit slow.
Is there anyway to only update an item in a listview without having to refresh the entire list?
Regards
It is possible to change an element of a ListView, but it is not a good solution, because you are accessing a widget of your listview item directly e.g. textview. But it at least can be used as a temporary solution
Example:
How can I update a single row in a ListView?
How could I keep the just last few items in a ListView shown? Currently, I'm using the following line to achieve this.
lv.smoothScrollToPosition(lv.getCount());
However, smoothScroll() is annoying because it has to scroll through all ListView elements to get to the end.
Use ListView.setSelection() with your preferred position.
I have a list view. When user scrolled till end, the i load more data. But its focus move to the first row of the listview. I want that the focused row should not be changed when list is updated. For example if i am in 10th position on the list. When list refreshed , i should remain on 10th. How to achieve it?
Does the programatically scrolling the listview by using setSelection() method work for you? Or are you looking to do something else?