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POAndroid: prevent preference dialog for preference which must be loaded over the network
 

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    <p>My app has a ListPreference, whose entries come from a network API. In my PreferenceActivity's onCreate(), I spawn a background thread which makes the API call and then populates the entries of the ListPreference after one or two seconds.</p> <p>If the user clicks the ListPreference button on the preference screen before the options have been downloaded, I want to prevent the preference dialog from showing and instead notify the user that the list of options is still being loaded.</p> <p>I suspect that correct approach is to override the OnPreferenceClickListener, like this:</p> <pre><code>ListPreference dpref = (ListPreference) findPreference("debug"); String[] s = {"one", "two", "three"}; dpref.setEntries(s); dpref.setEntryValues(s); dpref.setOnPreferenceClickListener(new OnPreferenceClickListener() { @Override public boolean onPreferenceClick(Preference preference) { Toast.makeText(this, "hi there", Toast.LENGTH_SHORT).show(); return true; } }); </code></pre> <p>The toast gets shown, but the ListPreference chooser dialog is shown as well. The <a href="http://developer.android.com/reference/android/preference/Preference.OnPreferenceClickListener.html" rel="nofollow">OnPreferenceClickListener documentation</a> says that onPreferenceClick should return <code>true</code> if the click was handled, but returning <code>false</code> has the same result.</p> <p>How do I prevent the preference dialog from showing?</p> <p>Is there a better way to handle preferences whose options must be downloaded before viewing?</p>
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