Is anyone encounter the problem of late response when clicks on an item of a listview? I am having this problem and tried all techniques that have been posted about listviews. I am setting a custom adapter that is not populating from database but passing some strings and some Images. And I am using this listview as menu in Side Menu Navigation and on click of list items it opens a new activity in the tabhost. I am just wonder with this behavior even I tried many code optimization.
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I need to create recyclerView with collapsing items. For example, I have a list of 10 items. By default, I only need to flip the first 2 elements. But by clicking on the "See all" button, I need to display all the items in the list. And vice versa, by clicking on the "Hide" button, you need to leave only the first two items in the list. Here is an example:
I suppose to implement it like this: create a flag that determines whether the full list is displayed or not, and by clicking on the button, depending on the flag, send the full list to the adapter or cut it to two elements and call notifyDataSetChanged().
But this solution seemed to me not very good, perhaps there is a more elegant solution.
Note: I don't need nested collapsing elements. I just need to display two items from a list or all items.
Please help me.
So, I have a recyclerview with multiple view types. I'm using this link to generate my adapter class, becauseI have multiple viewholders in my recyclerview. Now the problem I have is with collapsing certain items inside it. What I want is whenever I press
the green toggle, item 2 and 3 in the list should collpase but 4,5,6 should remain upon,unless you have clicked on the green item ofcourse. I tried many ways to approach this but I can not achieve this with the link provided. Is there any way I can achieve this?
When you click collapsing button you have to remove your collapsing data from your all source list. When you remove your item from your list recyclerView automatically animates it.After that when you want to show it again you have to insert it your list again and notify that.RecyclerView also animates again when you insert it. There is a useful link here for inserting and removing special data from recyclerView https://medium.com/#suragch/updating-data-in-an-android-recyclerview-842e56adbfd8
I met a small problem.
My MainActivity has a Fragment which includes a ListView. There are some items showing on the ListView. After Clicking one item, another Activity will be opened. When I click the "UP" button and return to the MainActivity, everything is displayed properly except the ListView which is disappearing.
I realized that I needed to trigger the ListView repaint.
But so far, I only find one way:
listAdapter.clear();
listAdapter.addAll(...);
It was a little conter-intuitive because the content of the ListView wasn't changed and I just wanted to show them again.
So does anyone know any simple way to implement it?
Thanks!
You could invalidate it by doing
adapter.notifyDataSetChanged()
Am new to development and have doubt in selecting listview items using android.
I have an listview with list of data from mysql and also have checkbox for selecting items and have button to pass the selected items to next screen.
What i want to know is how to select multiple items and send to next activity using the button.
Awaiting for your kind reply.
Perfect tutorial for your problem, might it will help you
ANDROID: MULTIPLE SELECTION LISTVIEW
I would like to open a listview by clicking on list items, which means when I need to show some categories in a list view and if I want that when I click on any of those categories then another listview should open with subcategories. And the same with working with subcategories, that when I click on subcategories then another listview should open with related sub-subcategories and viceversa.
Please tell me how can i do the above if i want same listview for all operations?
Thanks!
Seems like what you are trying achieve is a listview with a onItemClick, this question has been asked numerous times. Below are solutions to your question..
custom Listview Start new activity
How I can start a Activity if I click in A Item in a ListView
How to go to a particular activity on list item click?
ListView opens activity when Item is clicked?
Hope this help, since no one was able to answer your question.