I would like to be able to prevent a CheckBox from being selected (or to set it back to unselected), when the CheckBox is clicked
How can I achieve this?
I do not want to simply disable the checkbox. I want the user to think it is checkable, but when the user tries to check it… then I will (possibly) prevent the checkbox from being checked and display a message.
you can do something like this:
cb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
if(isChecked){
cb.setChecked(false);
// Code to display your message.
}
}
});
Answer：
Just add the android:clickable="false" attribute in the layout xml.
So for me I have:
<CheckBox
android:id="@+id/server_is_online"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:checked="true"
android:clickable="false"
android:text="@string/server_is_online"
android:textSize="23sp" />
and it works fine.
No that’s probably not how you’re supposed to use a checkbox, but I am using this as a dirty hack in the prototyping stage in lieu of having a nice icon with a green tick for all good, and an evil red cross for end of the world 🙂
Answer：
Just set it to never being clicked
cb.setClickable(false);
Answer：
Try the following
CheckBox repeatChkBx =
( CheckBox ) findViewById( R.id.repeat_checkbox );
repeatChkBx.setOnCheckedChangeListener(new OnCheckedChangeListener()
{
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
{
if ( isChecked )
{
repeatChkBx.setChecked(false); // perform logic of opening message
}
}
});
Answer：
this code perfect work for me
mCheckBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if ( isChecked==true )
{
buttonView.setChecked(false);
}
else
{
buttonView.setChecked(true);
}
}
}); //this code through user cant check box check/uncheck
Answer：
In Android CompoundButton class perfomClick() toggles checked state of button.
@Override
public boolean performClick() {
toggle();
final boolean handled = super.performClick();
if (!handled) {
// View only makes a sound effect if the onClickListener was
// called, so we'll need to make one here instead.
playSoundEffect(SoundEffectConstants.CLICK);
}
return handled;
}
You can create a class which extends CheckBox and override performClick() method if you want to manually control behaviour. Because clickable=false did not work for me.
Tags: androidandroid
