Checkboxpreference change value

Question

I have checkboxpreference in preference activity and I want that when one of the checkbox is enabled then other checkbox should get to disable and vice versa. I wants to do that from my main class activity.

Here is my code:

Preferencecheckbox.xml

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
<CheckBoxPreference
    android:defaultValue="true"
    android:icon="@drawable/img"
    android:key="check1"
    android:title="first" />
<CheckBoxPreference
    android:defaultValue="false"
    android:icon="@drawable/img2"
    android:key="check2"
    android:title="second" />
</PreferenceScreen>

Preferenceclass.java

public class preferenceclass extends PreferenceActivity {

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    addPreferencesFromResource(R.xml.preferencecheckbox);
}

see `android:dependency` in `android.preference.Preference` – pskink Oct 12 '17 at 06:20 — pskink, Oct 12 '17 at 06:20
I dont think we can use radio button in preference screen – Ravi Oct 12 '17 at 08:17 — Ravi, Oct 12 '17 at 08:17

codeFreak · Answer 1 · 2017-10-12T08:01:26.833

1

You need to add a dependency to the checkbox you need disabled.

Like this:

<CheckBoxPreference
    android:defaultValue="false"
    android:icon="@drawable/img2"
    android:key="check2"
    android:title="second" 
    android:dependency="check1" />

Update To disable other preferences via code.

 final CheckBoxPreference checkbox2 = (CheakBoxPreference) findPreference("pref_checkbox2_key");

    CheckBoxPreference switch = (CheakBoxPreference) findPreference("pref_switch_key");
            switch.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
                @Override
                public boolean onPreferenceClick(Preference preference) {
                    if (switch.isChecked()) {
                        checkbox2.setEnabled(false);
                    } else {
                        checkbox2.setEnabled(true);
                    }
                    return true;
                }
            });
    persistCheckBoxState(switch, checkbox2);

To persist the change when activity is closed, you need to get the preferences references like this and add directly below.

public void persistCheckBoxState (CheckBoxPreference switch, CheckBoxPreference checkbox2) {
if (switch.isChecked ()){ 
     checkbox2.setEnabled(false);
      } else {
      checkbox2.setEnabled(true);
    }
}

edited Oct 12 '17 at 08:01

answered Oct 12 '17 at 06:23

codeFreak

353
1
3
15

and what if there are more then 2 checkboxes then can we add 3 or more dependency to eachother – Ravi Oct 12 '17 at 06:54
Yes. The `android:dependency` attribute uses the state of the referenced preference key to handle disabled or enabled state. – codeFreak Oct 12 '17 at 07:04
can you help me to do this programmatically. – Ravi Oct 12 '17 at 07:14
its not working. I wants to uncheck all the checkbox when anyone of checkbox is checked – Ravi Oct 12 '17 at 07:42
The snippets is working. Ensure you use your preferences key instead of mine. – codeFreak Oct 12 '17 at 07:45
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/156527/discussion-between-codefreak-and-ravi). – codeFreak Oct 12 '17 at 07:47

score 1 · Answer 2 · answered Oct 12 '17 at 08:22

1

Maybe a ListPreference is more what you want. From a usability point of view this would make more sense. When you have to choose one selection out of many this would be the most obvious way to do it. See this post for further instructions

answered Oct 12 '17 at 08:22

Pynnie

136
12

well listprefernce works but I am not able to use image with it – Ravi Oct 16 '17 at 14:12
well, that should not be a problem after all. See this post for further instructions : https://stackoverflow.com/a/6194194/6868843 – Pynnie Oct 17 '17 at 07:09

Checkboxpreference change value

2 Answers2