SummaryListPreference.java

package wb.android.preferences;

import android.content.Context;
import android.preference.ListPreference;
import android.preference.Preference;
import android.util.AttributeSet;

public class SummaryListPreference extends ListPreference implements Preference.OnPreferenceChangeListener {

	private OnPreferenceChangeListener mOnPreferenceChangeListener;
	
	public SummaryListPreference(Context context) {
		super(context);
		super.setOnPreferenceChangeListener(this); //Must use the super's method here (since we overwrite)
	}
	
	public SummaryListPreference(Context context, AttributeSet attrs) {
		super(context, attrs);
		super.setOnPreferenceChangeListener(this); //Must use the super's method here (since we overwrite)
	}

	@Override
	public boolean onPreferenceChange(Preference preference, Object newValue) {
		preference.setSummary(getSummary());
		if (mOnPreferenceChangeListener != null) {
			return mOnPreferenceChangeListener.onPreferenceChange(preference, newValue);
		}
		return true;
	}
	
	@Override
	public void setOnPreferenceChangeListener(OnPreferenceChangeListener onPreferenceChangeListener) {
		mOnPreferenceChangeListener = onPreferenceChangeListener;
	}
	
	@Override
	public CharSequence getSummary() {
		return getEntry();
	}

}