I'm trying to make a screen that have an expandable categories
each category have items that when clicked i want it to be added to an element in the same screen like this pic
and when the unselect (red one) is pressed it remove it from the list
any ideas on how to implement this or suggestion for similar components
You may try using expanable-recycler-view from bignerdranch, to remove item from view, just
Remove item form data list when red button is pressed and
Notify adapter for change using notifyDataSetChanged()
Hope this help, thank you. :)
Related
I have a list view with custom adapter. I'm trying to implement following
when a item in the list is clicked, only that item is expanded and show some info.
when it is clicked again, it goes back to the first state. can any one suggest a
way to achieve this.
thanks in advance
Use ExpandableListView.
It can help you.
ExpandableListView can expanded and back to the first state.
Also, you can custom inner layout.(some info)
please use it.
I have created a dynamic ListView which contains 4 Buttons what I want is on pressing a button, that button containing row should shift to first position in ListView.
How can I do this? Please Help Me Thanks in Advance
Just change order of items in adapter and call
adapter.notifyDataSetChanged()
and you have to do it from UI thread.
I want to display a list item that says "More" at the end of my ListView. Clicking on this list-item will perform some action. How can I create this "more" list item?
I don't know about the "Clicking on this list-item will perform some action" part. The typical pattern is that once the user scrolls to the bottom, new material is loaded automatically. Some people do that by detecting the scroll. I do it by putting in a "More" placeholder and detecting when that is used. Here is a component that implements this pattern.
Just add another value to your arrayadapter (or any other adapter), you might be using.set the text to 'more' .
Suppose you have n items in the list then handle the (n+1)th postion click and do your stuff.
You can add a footer to your listview...
Did you check this post out?
Android ListView Footer View not being placed on the bottom of the screen
I have a simple ListView in my application. What I want to do on a row select is to expand it and show additional details in there and then if some other is selected then collapse the previous one and expand the new one.
I can modify the contents list item row in onListItemClick() method. However how do I animate the change in height of the list item row.
Is there a better way to do it? Or is there a better component still? I don't want to use the expandable list as it's not a group of child lists, instead just expanding the contents with more details.
Any help is much appreciated.
Cheers
Have a look at Lazylist below this.
http://open-pim.com/tmp/LazyList.zip
i think this example is great for build your custom ListView
I choose an item to remove from my ListView. And after the Item was removed, my ListView was scrolled back and display at the first Item.
I want my ListView display in right place where the Item I had removed (It like remove a contact in Android Contact list). How can I do that?
I suppose you want to update your ListView display, after you remove an item, right?
When you remove the item, you have to modify your data adapter, and let the ListView change accordingly (something like the MVC pattern behavior). I've seen somewhat similar questions (and the corresponding answers :) ) here and here.
Edit:
Aha, in that case, try using setSelection(int), after recalculating new indices and new item count.