I've found a few examples of adding a RadioButton or a CheckBox to a ListView. I've even found one that uses one or the other depending on whether the ListView allows multiselect or not.
What I'm trying to do is have a RadioButton followed by a CheckBox. If the RadioButton is selected, all other RadioButtons should clear, and all CheckBoxes should clear. If a CheckBox is selected, all RadioButtons should clear, but I should be able to select more CheckBoxes on my own.
In other words, it's multiselect and singleselect just depending on the user's preference.
I created a class for the linearlayout with both views and a TextView. I am using the toggle, and setChecked methods. But I can't tell which view actually was pressed on, just that the LinearLayout was pressed.
public class CheckableLinearLayout extends LinearLayout implements Checkable
{}
Any ideas?
Make a Listener for your radiobuttons and in onClick() loop through all of your checkBoxes and call checkBox.setSelected(false). That will take care of clearing all checks when a radio button is chosen. Then make a seperate Listener for your check boxes and inside the onClick() of that find the radioButton that is selected and call radioBtn.setSelected(false)
Make sure your radio buttons are in a RadioGroup and that will handle making sure that only one of them can be selected for you without having to do anything extra.
Related
I have a scenario that we should have a single choice mode radio button in listview. when I click on the radiobutton it should go to enable state. when I click on the whole item then it should redirect to the new activity.
You can simply create a composite view for this. Due to the way the native radiobutton is built you can't differentiate between click on the circle or click on the item.
You can have a radiobutton without text associated to a textview or whatever view you may need. Then you simply listen to clicks on the textview or the radiobutton.
For the radiobutton you can keep the default behavior and for the textview you have a button-like onClickListener.
I'm building an ExpandableListView in which there are groups of radio buttons.
Currently, I am able to handle the click event on each radio button and select the corresponding one and deselect the others. But there is just one more thing needed to make it perfect. That is displaying the value of the selected checkbox in the group view so the user can see what is selected without expanding it.
For that purpose, I have a TextView in the group view. Is it possible to update that TextView when a checkbox is selected in the child view?
Here is a screenshot of what I have right now:
Basically what I want to accomplish is to make it write the value of the selected checkbox instead of "Regular".
Thanks.
in your example, it seems perfectly reasonable to save a reference to your TextView inside a member variable when it is created. you can then easily update its value by calling setText() on it from within your checkbox's click handler.
it is neither necessary nor desirable to call notifyDataSetChanged().
I started working with check boxes in android but got confused when to use setCheckedChangelistener and setOnclickListener, pleasae tell me when to select appropriate one and also difference in their implementation.
OnClickListener calls in case, when you click any View (Button, TextView, EditText and other). OnCheckedChangeListener call when View change checked state. It works with Views like (ToggleButton, CheckBox). This Views change and store state after click.
Good luck!
onClickListener is used for widgets like - Buttons , Textview , EditText , LinearLayout , FrameLayout , etc.
onCheckedChangeListener is used for compound button widgets like - CheckBox, RadioButton, Switch, ToggleButton .
I have problem in list view with single choice mode. I want to display three text views with one radio button in list view. list view working properly. The problem is single choice mode. i want to select only one list item at a time rest of thing unselect mode. I searched last three days still i won't get any idea. Could you please help me. Thanks in advance.
You could make a variable that saves the radiobutton chosen.
In each radiobuttons onclick you could set the variable value and set the rest of the radiobuttons to unchecked.
Hints:
in the radiobutton xml add: android:onClick"method name"
In the method add View view as an argument (example: public void clickMethod(View view).....)
Im not sure if you can display 3 textviews and a radioButton without customize ArrayAdapter
but if you have succeeded to build the list you can do the following
1- remove the focus from the child elements(radioButton and textviews)
you can do this from the xml [android:focusable="false"] and for the listview [listview.setItemsCanFocus(false)]
2- make the radioButton not clickable from xml[android:clickable="false"]
3- create a variable to hold the clicked item (in the custom adapter) and make public method to update this position
4- create OnItemClickListener for the listview, update the clicked position in the adapter
and call adapter.notifydatasetchanged
5- be sure to in getView method to make the radioButton unchecked and make the view at that position is checked
I have an ExpandableListView which contains a list of rows with CheckBox and TextView.
I have managed get the row selectable by setting the checkbox focusable attribute to false. I have also added a OnChildClickListener to my ExpandableListView.
When i click on the TextView or any other region, the onChildClick is executed fine. But, the trouble is, when i click on the CheckBox, the onChildClick is not executed!!!
Any solutions or workaround???
Thanks
What you may want to do here is set the clickable attribute of the checkbox as false. Then, you can programmatically check and uncheck the checkbox in your code with whatever else you need to do.