I am using this link to create custom listview in my app.
First I want to display listview with 5 items. As I scroll the list it should parse data and load listview for next 5 items.
Listview row contains 5 textviews.
How can I achieve this?
Please help me.
Thanks in advance
I want to display 5 items in single row
That has nothing to do with EndlessAdapter. That has everything to do with the ListAdapter you are putting into the EndlessAdapter. Start by not using EndlessAdapter and getting your list looking the way you want. Then, and only then, add in EndlessAdapter to add more data to the list as the user scrolls.
There are countless examples online of how to create rows in a custom ListAdapter that have more than one thing in them. Here is a free excerpt from my book on how to subclass ArrayAdapter, override getView(), and handle more than one widget in a row. You specifically will want to look at the "Customizing the Adapter" section.
Related
I want to implement the following:
Listview 1 contains items with checkboxes. If one or more items are checked, listview 2 should only show items that contain the checked items.
What would be the best way to accomplish that?
I had a similar question about how to implement checkboxes in each listview element. It could be tricky since the adapter refreshes the states of each checkbox on scrolling. Check David Scott's answer and my comments on it for proper use. Also check out Joey's answer after that.
ListView adapter with many checkboxes
Regarding your 2nd listview you will have to check your boolean array which rows are checked. Then get all elements at those indexes from your collection and save them. Either you:
Use all the element rows that was checked(in some container class) and set these to your listview adapter number 1. Then use adapter.notifySetDataChanged() and these will appear.
If you want to keep your listview number 1, create a new activity with the 2nd listview, pass the chosen objects to it and use them as elements. Or simply put a listview below the 2nd one with the checked rows.
Dont know how much you know about listviews but this are my 50 cents about the topic.
I am trying to make a recipe ListView for food and I want to add imageViews next to items in my list. How can i do that? Thx.
A ListView item can have it's own custom layout.
You have to create your adapter for the ListView. When you create your adapter you can assign your custom layout.
Note: You will have to implement getView() to property set the image+text.
Here you have a sample: Lazy load of images in ListView
Following this tutorial could be a nice idea for you (mainly the second example).
http://www.mkyong.com/android/android-listview-example/
But anyway, you should Google a little bit before asking such a basic question.
I have read a little bit about ListAdapter - ArrayAdapter - BaseAdapter - CursorAdapter. I don’t understand there usage in true sense.
I have scenario, in which I am showing word in a TextView and then there are 4 radio button options and user will select one.
I am confused if I can use any adapter functionality. Like when the word on the top is move to next word. Meaning selection shown as radio button options updates automatically because of binding.
In a nut shell i am looking for something like auto binding in .NET.
BaseAdapter is the most basic Adapter of ListView. All remaining adapters extend from BaseAdapter.
If you are confused which adapter is suitable for you scenario, let choose BaseAdapter first.
ArrayAdapter can be used to link say a list of items with an array. The ArrayAdapter works between an your array data and a list item layout to populate a list.
a CursorAdapter can work in a similar way but can link a database query result set (in a cursor) to a list by populating list items.
They are both subclasses of ListAdapter
If data changes in either the database tables or Array both the Array and Cursor Adapters can be refreshed via notifyDataSetChanged()
I would like to create an ListActivity that's arranged somehow different than a usual list: it should contain, on each list row, multiple selectable items (image buttons to be more precise).
The items will be loaded from a SQLite db using a cursor.
My questions are:
I'm not sure I should use a ListActivity for this functionality. It looks like a List, but with custom design and behavior, so if anybody can suggest any other way to do it..
Assuming I can use a ListActivity, what I can't figure out is how can I do it. All the examples so far refer to list with only one item per row.
Thank you !
Create your custom adapter by
extending BaseAdapter class, So you
can custmize listview howerver you
want. Then palce your image buttons in
each listitem and provide
setOnClickListener for each image
buttons inside the adapter class:
Check out the following post for
coding help
: Custom ListView
Cheers!
Can I use my existing ListView as a sub-view in another view.
eg. I have a custom view, players list, I have implemented with a ListActivity and ArrayAdapter and is working fine.
Now I want a way to get this listview as View object so that I can add this view object as a child to another view.
I am thinking like, to build entire listview: my ListActivity is calling the ArrayAdapter iteratively by passing ArrayList item each time to build a list item view.
If I am correct, I need a way to call the same ArrayAdapter and need to prepare a ListView Object, right?
Can anybody plz help me.
Thanks in advance.
vpapana
The ListView and the Adapter are two different things:
The data is somewhere (in an array or if you need to be able to add/remove items, in an ArrayList)
The Adapter contains the data
The ListView displays it.
So:
Construct your empty ArrayList
Construct your adapter based on your ArrayList
Construct your ListView based on the Adapter
Then:
Each time you need to change the data, update the ArrayList
Call Adapter.notifyDataSetChanged()
Watch your list being automatically updated :)
To add your list to a tablelayout, see the API documentation, SDK tutorial and this tutorial which has a specific section on how to add rows programmatically.