Reputation: 759
I have a radio group which I do not want to user to be able to select any of the buttons until a particular checkbox is selected within my app. If the checkbox is unticked then this disables the radio-group. How do I go about doing this.
Upvotes: 44
Views: 50925
Reputation: 863
By using kolin's extensions:
fun RadioGroup.setChildrenEnable(enable: Boolean) {
for (i in 0 until this.childCount) {
this.getChildAt(i).isEnabled = enable
}
}
And in your code you can just call the function like this:
radioGroup.setChildrenEnable(false)
Upvotes: 3
Reputation: 61
If you want to implement the same for Kotlin, Here's my code-> where rgNotificationType is the radio group name.
for (i in 0 until rgNotificationType.childCount) {
(rgNotificationType.getChildAt(i)).isEnabled = false
}
Upvotes: 3
Reputation: 2733
Kotlin Solution
for (index in 0..radio.childCount - 1)
radio.getChildAt(index).isEnabled = false
Upvotes: -1
Reputation:
RadioGroup cannot be disabled directly, we have to loop through the radio button and setEnabled as false.
// To disable the Radio Buttons of radio group.
for (int i = 0; i < radioGroup.getChildCount(); i++) {
radioUser.getChildAt(i).setEnabled(false);
}
Upvotes: 10
Reputation: 810
If you have just a few radio buttons, better way would be to setClickable(false) for all children
radiobutton1.setClickable(false);
radiobutton2.setClickable(false);
radiobutton3.setClickable(false);
Upvotes: 11
Reputation: 21979
The real trick is to loop through all children view (in this case: CheckBox
) and call it's setEnabled(boolean)
Something like this should do the trick:
//initialize the controls
final RadioGroup rg1 = (RadioGroup)findViewById(R.id.radioGroup1);
CheckBox ck1 = (CheckBox)findViewById(R.id.checkBox1);
//set setOnCheckedChangeListener()
ck1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton checkBox, boolean checked) {
//basically, since we will set enabled state to whatever state the checkbox is
//therefore, we will only have to setEnabled(checked)
for(int i = 0; i < rg1.getChildCount(); i++){
((RadioButton)rg1.getChildAt(i)).setEnabled(checked);
}
}
});
//set default to false
for(int i = 0; i < rg1.getChildCount(); i++){
((RadioButton)rg1.getChildAt(i)).setEnabled(false);
}
Upvotes: 82
Reputation: 2357
Take actions according to the state of the checkbox and set the radiogroup accordingly. Assuming that you have a radio-group named radiogroup you can enable or disable the radiogroup by
radiogroup.setEnabled(true);
Add a OnCheckedChangeListener() to your checkbox.
Upvotes: -3
Reputation: 6712
You can use the onCheckedChangeListener on your CheckBox and use the method setEnabled on your RadioGroup.
Best wishes, Tim
Upvotes: 0