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Open a Preference in Android Setting (preference) Activity
private void openPreference(String key) {
PreferenceScreen preferenceScreen = getPreferenceScreen();
final ListAdapter listAdapter = preferenceScreen.getRootAdapter();
final int itemsCount = listAdapter.getCount();
int itemNumber;
for (itemNumber = 0; itemNumber < itemsCount; ++itemNumber) {
if (listAdapter.getItem(itemNumber).equals(findPreference(key))) {
preferenceScreen.onItemClick(null, null, itemNumber, 0);
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