void IPreferencesBackend.Commit()
{
if (!dirty)
{
return;
}
dirty = false;
using (MemoryStream s = new MemoryStream()) {
using (BinaryWriter w = new BinaryWriter(s)) {
w.Write((ushort)data.Count);
foreach (var pair in data)
{
w.Write(pair.Key);
switch (pair.Value)
{
case string value: {
w.Write((byte)0);
w.Write(value);
break;
}
case bool value: {
w.Write((byte)1);
w.Write(value);
break;
}
case byte value: {
w.Write((byte)2);
w.Write(value);
break;
}
case int value: {
w.Write((byte)3);
w.Write(value);
break;
}
case long value: {
w.Write((byte)4);
w.Write(value);
break;
}
case short value: {
w.Write((byte)5);
w.Write(value);
break;
}
case uint value: {
w.Write((byte)6);
w.Write(value);
break;
}
case string[] value: {
w.Write((byte)10);
w.Write((byte)value.Length);
for (int j = 0; j < value.Length; j++)
{
w.Write(value[j]);
}
break;
}
case bool[] value: {
w.Write((byte)11);
w.Write((byte)value.Length);
for (int j = 0; j < value.Length; j++)
{
w.Write(value[j]);
}
break;
}
case byte[] value: {
w.Write((byte)12);
w.Write((byte)value.Length);
for (int j = 0; j < value.Length; j++)
{
w.Write(value[j]);
}
break;
}
case int[] value: {
w.Write((byte)13);
w.Write((byte)value.Length);
for (int j = 0; j < value.Length; j++)
{
w.Write(value[j]);
}
break;
}
case long[] value: {
w.Write((byte)14);
w.Write((byte)value.Length);
for (int j = 0; j < value.Length; j++)
{
w.Write(value[j]);
}
break;
}
case short[] value: {
w.Write((byte)15);
w.Write((byte)value.Length);
for (int j = 0; j < value.Length; j++)
{
w.Write(value[j]);
}
break;
}
case uint[] value: {
w.Write((byte)16);
w.Write((byte)value.Length);
for (int j = 0; j < value.Length; j++)
{
w.Write(value[j]);
}
break;
}
default:
Log.Write(LogType.Error, "Unknown preference type: " + pair.Value.GetType().FullName);
break;
}
}
}
ArraySegment <byte> buffer;
if (s.TryGetBuffer(out buffer))
{
string base64 = Base64.EncodeToString(buffer.Array, buffer.Offset, buffer.Count, Base64Flags.NoPadding | Base64Flags.NoWrap);
ISharedPreferencesEditor editor = sharedPrefs.Edit();
editor.PutString("Root", base64);
editor.Commit();
}
else
{
Log.Write(LogType.Error, "Can't get memory buffer to save preferences.");
}
}
}