Java tutorial
/* * Copyright (C) 2015 Vincent Breitmoser <v.breitmoser@my.amazin.horse> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.sufficientlysecure.keychain.ui.widget; import android.content.Context; import android.database.Cursor; import android.database.MatrixCursor; import android.support.v4.widget.SimpleCursorAdapter; import android.support.v7.widget.AppCompatSpinner; import android.util.AttributeSet; import org.sufficientlysecure.keychain.R; import org.sufficientlysecure.keychain.util.Preferences; import org.sufficientlysecure.keychain.util.Preferences.CacheTTLPrefs; public class CacheTTLSpinner extends AppCompatSpinner { public CacheTTLSpinner(Context context, AttributeSet attrs) { super(context, attrs); initView(context); } public CacheTTLSpinner(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); initView(context); } private void initView(Context context) { CacheTTLPrefs prefs = Preferences.getPreferences(context).getPassphraseCacheTtl(); MatrixCursor cursor = new MatrixCursor(new String[] { "_id", "TTL", "description" }, 5); int i = 0; for (int ttl : CacheTTLPrefs.CACHE_TTLS) { if (!prefs.ttlTimes.contains(ttl)) { continue; } cursor.addRow( new Object[] { i++, ttl, getContext().getString(CacheTTLPrefs.CACHE_TTL_NAMES.get(ttl)) }); } setAdapter(new SimpleCursorAdapter(getContext(), R.layout.simple_item, cursor, new String[] { "description" }, new int[] { R.id.simple_item_text }, 0)); } public int getSelectedTimeToLive() { int selectedItemPosition = getSelectedItemPosition(); Object item = getAdapter().getItem(selectedItemPosition); return ((Cursor) item).getInt(1); } }