altosdroid: Add missing preferences backend file

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroidPreferencesBackend.java b/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroidPreferencesBackend.java
new file mode 100644 (file)
index 0000000..be41ae7
--- /dev/null
+++ b/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroidPreferencesBackend.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright © 2012 Mike Beattie <mike@ethernal.org>
+ *
+ * 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; version 2 of the License.
+ *
+ * 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, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+package org.altusmetrum.AltosDroid;
+
+import java.io.File;
+import java.util.Map;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.os.Environment;
+
+import org.altusmetrum.altoslib_5.*;
+
+public class AltosDroidPreferencesBackend implements AltosPreferencesBackend {
+       public final static String        NAME    = "org.altusmetrum.AltosDroid";
+       private Context                   context = null;
+       private SharedPreferences         prefs   = null;
+       private SharedPreferences.Editor  editor  = null;
+
+       public AltosDroidPreferencesBackend(Context in_context) {
+               this(in_context, NAME);
+       }
+
+       public AltosDroidPreferencesBackend(Context in_context, String in_prefs) {
+               context = in_context;
+               prefs   = context.getSharedPreferences(in_prefs, 0);
+               editor  = prefs.edit();
+       }
+
+       public String[] keys() {
+               Map<String, ?> all = prefs.getAll();
+               return (String[])all.keySet().toArray();
+       }
+
+       public AltosPreferencesBackend node(String key) {
+               return new AltosDroidPreferencesBackend(context, key);
+       }
+
+       public boolean nodeExists(String key) {
+               return prefs.contains(key);
+       }
+
+       public boolean getBoolean(String key, boolean def) {
+               return prefs.getBoolean(key, def);
+       }
+
+       public double getDouble(String key, double def) {
+               Float f = Float.valueOf(prefs.getFloat(key, (float)def));
+               return f.doubleValue();
+       }
+
+       public int getInt(String key, int def) {
+               return prefs.getInt(key, def);
+       }
+
+       public String getString(String key, String def) {
+               return prefs.getString(key, def);
+       }
+
+       public void putBoolean(String key, boolean value) {
+               editor.putBoolean(key, value);
+       }
+
+       public void putDouble(String key, double value) {
+               editor.putFloat(key, (float)value);
+       }
+
+       public void putInt(String key, int value) {
+               editor.putInt(key, value);
+       }
+
+       public void putString(String key, String value) {
+               editor.putString(key, value);
+       }
+
+       public void remove(String key) {
+               editor.remove(key);
+       }
+
+       public void flush() {
+               editor.apply();
+       }
+
+       public File homeDirectory() {
+               return Environment.getExternalStorageDirectory();
+       }
+}