i have list view with checkbox and if I select some item than every 9 item is selected too.
I am using onClickListener on checkbox.
Do you know how solve the situation? One item checked, but more selected.
If you wanna see my source code, just let me know and I will put there.
Thanks for help
Lukas P.
Your problem comes from views being recycled by Android. You need to store the check box state of each row in some container (eg. a list) and then explicitly set the checked state to the correct state in getView.
See this similar question:
custom ListView with checkboxes checking unchecked items
Related
I have an activity which has, search view and recycler view. The recycler items contains checkbox, Assume there are 5 items(A,B,C,D,E) in recycler view . In normal, when I click checkbox on A/B/C/D/E,it works fine, when I search C on search view, the filter is done and it shows result of C alone, when I check C and close the search, the check is reassigned to A as it is in position 0 and C remains unchecked. I need to check based on user Id. How to achieve this?
For that purpose you need to validate data in proper manner.You just store the id of checkbox item when user is selecting to it.and after that you validate the checkbox data in onBindView() method of recycle adapter. I hope its help you.
For questions without code references, one can expect answers in the same manner, so first, try putting some code as well in the question.
In a nutshell, you need to save the selected state of the checkbox in your data model so that when the list is reloaded, you can get that selected state of checkbox and assign it to isChecked property, this can be done in onBindViewHolder. Hope this helps.
I realise that this question has been asked a lot and i've read the first 2 pages of google about it but i couldn't find an answer that worked.
Basically i want a ListView with custom items, each one should have a checkbox. How can i make it so that when i click a checkbox the equivalent of listView.setItemChecked(int, boolean)... would happen?
Some of the answers i've found required having another boolean in the list objects, or some would reuse the checkboxes so they reappear checked further down the list. Is there a way to have a checkbox modify something in the listView or how could i add multiple listeners to a list item? For example when i clicked the text something would happen but clicking the image would trigger something else?
Thanks.
You can listen for multiple items at a list row easily. just listen for them inside your list adapter getView method after finding them.
hope it helps
I have a problem with my customized Listview with 2 TextViews and a CheckBox in each item, the problme is when scrolling the Listview, the checked items get unchecked randomly and vice versa, can anyone help to define a customized Adapter to solve this problem, i'll be so thankful
I had the same problem and I solved as follows:
I have a boolean variable isCheckedByUser. In the adapter, everytime I do something with the checkbox, i set this variable to false first, do all the things I have to with the checkbox, and set the variable to true again. Then, in the method onCheckedChanged I check if this variable is true, if so, means that the user wanted to modify the state, so I do whatever its needed with the checkbox.
In fact, this problem is not so "random". The listview reuses the cells, so that's why for you seems like the checkboxes are unchecked randomly.
Check that you correctly recycle the convertView param in getView.
If the view was already in use, ensure the checked state fits with the new item represented.
My problem is list of checkboxes are there which are checked in gridview , while scrolling the list, those checked one is turned to unchecked one.
Shiva,
If you are using custom Adapter for your list,then you can implement an ArrayList to keep track of the CheckBox State. And in your getView() function of Adapter, set your CheckBox true/false according to the ArrayList. This is a starting point for your problem. I hope you can figure out the rest. If you still have any problem, you can ask.
I have a ListView and I want to select multiple items in the ListView without using CheckedTextView.
Please help !!
You don't really need a CheckBox. All you need is a boolean flag on your list objects. When the user clicks an item you change the state of the flag, and probably the background or text color for that list item.
I never tried it, but I would use ListView with checkbox but non visible.
Perform the setChecked(True) when the user press on an item.
I would also try changing the item background when the checkbox is checked.