How to get the selected option from the list?

Question

I have a ListPreference, and it contains, for example, 5 parameters, and I want to save one of these values ​​in SharedPreferences when the user selects it. How can i do this?

by the way. I know how to store a value in SharedPreferences, but I don’t know how to get this value when the user selects one of them.

Answer 1

OnPreferenceChangeListener listener = new OnPreferenceChangeListener() {    
    @Override
    public boolean onPreferenceChange(Preference preference, Object newValue) {
        // newValue is the value you choose
        return true;
    }
};

listPreference.setOnPreferenceChangeListener(listener);

Answer 2

I can access this like this .. Please see the example below.

In my preference.xml file:

<ListPreference
            android:key="SQS_ENDPOINT"
            android:dialogTitle="Choose an option please"
            android:entries="@array/sqsItems"
            android:entryValues="@array/sqsValues"
            android:title="SQS Endpoints" >
        </ListPreference>

my String.xml:

<string-array name="sqsItems">
        <item>US East (N. Virginia)</item>
        <item>Asia Pacific (Singapore)</item>
        <item>Asia Pacific (Tokyo)</item>
    </string-array>
    <string-array name="sqsValues">
        <item>sqs.us-east-1.amazonaws.com</item>
        <item>sqs.ap-southeast-1.amazonaws.com</item>
        <item>sqs.ap-northeast-1.amazonaws.com</item>
    </string-array>

And then I get the selected value, like this from anywhere:

SharedPreferences pref = PreferenceManager
                .getDefaultSharedPreferences(context);
        String END_POINT = pref.getString("SQS_ENDPOINT", "");

Answer 3

XML SharedPreferences .

<ListPreference
android:key="SHARED_PREFS_KEY"
...
/>

, , SharedPreferences