CODEWITHSUNDEEP
androidandroid-activityandroid-studioandroid-preferences
justdeko
justdeko

Reputation: 1134

Using ListPreference in AndroidStudio

I have a settings menu with a list preference from the sample settings activity in Android Studio.

 <ListPreference
    android:key="example_list"
    android:title="@string/pref_title_add_friends_to_messages"
    android:defaultValue="5"
    android:entries="@array/pref_example_list_titles"
    android:entryValues="@array/pref_example_list_values"
    android:negativeButtonText="@null"
    android:positiveButtonText="@null" />

In this list preference you can select 8 different things.

  <string name="pref_title_add_friends_to_messages">Klasse</string>
<string-array name="pref_example_list_titles">
    <item>5</item>
    <item>6</item>
    <item>7</item>
    <item>8</item>
    <item>9</item>
    <item>10</item>
    <item>11</item>
    <item>12</item>
</string-array>
<string-array name="pref_example_list_values">
    <item>5</item>
    <item>6</item>
    <item>7</item>
    <item>8</item>
    <item>9</item>
    <item>10</item>
    <item>11</item>
    <item>12</item>
</string-array>

I want to use the value of the preference to display links which belong to the 8 different settings.

E.g.:

5 - google.com

6 - wikipedia.com

etc.

As a beginner, how do I get the value of my preference and how do assign the values to the links and put them in one variable, which changes when the preference is being changed?

Upvotes: 3

Views: 6117

Answers (2)

Anggrayudi H
Anggrayudi H

Reputation: 15165

<string-array name="pref_example_list_values"> will be used as value in the ListPreference. To get the current value, use:

ListPreference lp = (ListPreference) findPreference("example_list");
String currentValue = lp.getValue();

To get the value and display it in a text, have a TextView and set the text:

/* You might create 'if' statement for 8 times because of there are 8 different value in the ListPreference*/

TextView tv = (TextView) findViewById(R.id.textview1);

if (currentValue.equals("5")) {
// do your thing here, i.e. google.com
tv.setText("Welcome, 5!");
}
if (currentValue.equals("6")) {
// do your thing here, i.e. wikipedia.com
tv.setText("Welcome, 6!");
}

Upvotes: 1

Michiyo
Michiyo

Reputation: 1201

You can get the value of your preference like this: 

SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(this);
String value = sharedPref.getString("example_list", "default value");

I don't understand the rest of your question. What does

how do assign the values to the links and put them in one variable, which changes when the preference is being changed? mean?

Also, I find the documentation on preference settings very helpful.

Upvotes: 1

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