'How to receive a event on android checkbox check change?
What would be the correct way of receiving and sending an event when a check box gets enabled or disabled?
In C# I could just easily double click and all the code would be done for me. But in android it appears to be a bit more obscure. I thought of using the touch event handlers but then if the user has a keyboard it won't detect the change since it's not touch. I figure android should have a native event for check box state change.
Solution 1:[1]
CheckBox repeatChkBx = ( CheckBox ) findViewById( R.id.repeat_checkbox );
repeatChkBx.setOnCheckedChangeListener(new OnCheckedChangeListener()
{
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
{
if ( isChecked )
{
// perform logic
}
}
});
Solution 2:[2]
Since CheckBox (eventually) extends View, you can use a standard OnClickListener to detect when the CheckBox is actually tapped by the user (as opposed to the ListView updates):
CheckBox repeatChkBx = ( CheckBox ) findViewById( R.id.repeat_checkbox );
repeatChkBx.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if ( ((CheckBox)v).isChecked() ) {
// perform logic
}
}
});
Solution 3:[3]
In Kotlin:
checkBoxView.setOnCheckedChangeListener { _, isChecked ->
print("checked: $isChecked")
}
Solution 4:[4]
Try this
CheckBox checkbox=(CheckBox)findViewById(R.id.checkbox);
checkbox.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
if (checkbox.isChecked())
{
//Perform action when you touch on checkbox and it change to selected state
}
else
{
//Perform action when you touch on checkbox and it change to unselected state
}
}
});
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | Martin Zeitler |
| Solution 2 | Phileo99 |
| Solution 3 | MSpeed |
| Solution 4 | Community |
