Android: preference activity. Dependency by list values

Question

How to set dependency by the ListPreference values?

score 5 · Accepted Answer · answered Aug 12 '11 at 13:32

As already pointed out by Snicolas, the depency xml feature only checks for a boolean state (= if the referenced key is true or a value is set in it). If enabled, you can use this preference, if it is not, you can't.

To archieve a depency when a certain ListPreference entry is selected, you have to write some logic in code. I'd solve this by using a OnSharedPreferenceChangedListener. When the preference/key thats associated with your ListPreference changes, test to which value it has changed. If it now has one that enables or disables your preference, use Preference.setEnabled() to change it.

If you want to see some code for this approach, check this answer: http://stackoverflow.com/questions/3969807/listpreference-dependency — AlvaroSantisteban, Aug 21 '13 at 18:47

score 1 · Answer 2 · answered Aug 12 '11 at 13:25

1

Dependency means that "If the other Preference is not set or is off, this Preference will be disabled."

It's got nothing to do with values.

REgards, stéphane

answered Aug 12 '11 at 13:25

Snicolas

37,840
15
114
173

Android: preference activity. Dependency by list values

2 Answers2