How to Get Selected Text and Value Android ListPreference

爷,独闯天下 提交于 2019-11-27 03:11:15

问题


The XML file of my ListPreference

<ListPreference android:key="lpBirim" android:title="Birim"
        android:summary="" android:defaultValue="0"  android:persistent="false"/>

How to get the selected text and the selected value?


回答1:


in your PreferenceActivity do something like:

ListPreference listPreference = (ListPreference) findPreference("lpBirim");
CharSequence currText = listPreference.getEntry();
String currValue = listPreference.getValue();



回答2:


You can use this snippet to get the value:

 SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this); 
 sp.getString("lpBirim","-1")

Have look on the tutorial




回答3:


Here is an example:

@Override
public boolean onPreferenceChange(Preference preference, Object value)
{
    String textValue = value.toString();

    ListPreference listPreference = (ListPreference) preference;
    int index = listPreference.findIndexOfValue(textValue);

    CharSequence[] entries = listPreference.getEntries();

    if(index >= 0)
        Toast.makeText(preference.getContext(), entries[index], Toast.LENGTH_LONG);

    return true;
}
  • index contains the index of the clicked item
  • textValue is the Selected Value
  • entries[index] is the Selected Text



回答4:


SharedPreferences Preference = PreferenceManager.getDefaultSharedPreferences(this); 
 Preference.getString("your list preference key","-1")



回答5:


You can use findPreference() to get a ListPreference that has all methods you need. To have it working you need to use or extend PreferenceFragment first.



来源:https://stackoverflow.com/questions/6148952/how-to-get-selected-text-and-value-android-listpreference

易学教程内所有资源均来自网络或用户发布的内容,如有违反法律规定的内容欢迎反馈
该文章没有解决你所遇到的问题?点击提问,说说你的问题,让更多的人一起探讨吧!