custom list view with custom checkbox,
Example : i have 4 data and all checkbox checked, i write command to remove item using OnCheckedListener, so when i click checbox the second item, the second item dissapear. the thrid item going up but the checkbox on the third item become checked = false as in the screen (when i debug it, the value still checked=true)
if i remove the third item then the 4th checkbox will be uncheck.
how to resolve this problem?
thanks in advance, sorry for my english
In the onClick() or onCheckedChanged() method, whichever you are using, programmatically check which ones are checked, and toggle them.
Initialize as many CheckBox as you want, and then do this for all :
if(chkbox1.isChecked()){
chk1.toggle();
}
if(chkbox2.isChecked()){
chk2.toggle();
}
Related
I want to pre checked/ pre selected a specific item when a list being created. I use CheckedTextView for the text and checkbox.
For example, I have 3 items, after the list create, I will get a listview. and the second item is already check/tick.
I know how to perform it by using onclick, but what I need is before I click it. some item is already checked.
Thank you
Add a boolean isChecked variable in your ItemModel, set true/false as you wish. Check/uncheck item in your CustomAdapter.
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
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.
I have list which contain checkbox in each list and I want to define these checkbox for only one of check box can select (like radio button) anybody have any ideas?
Set clickable/focusable/focusableInTouchMode to false, and then the list item vill receive the click, then set the checkbox state manually.
If the checkbox is clickable, then the item will not receive any event, this is an old Android bug still not fixed. Even worse if you want to use EditTexts, but don't get me there
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.