public override int Update(Android.Net.Uri uri, ContentValues values, string selection, string[] selectionArgs)
{
PrefModel model = GetPrefModelByUri(uri);
if (model == null)
{
throw new InvalidOperationException("update prefModel is null");
}
switch (sUriMatcher.Match(uri))
{
case PREF_BOOLEAN:
PersistBoolean(model.Name, values);
break;
case PREF_LONG:
PersistLong(model.Name, values);
break;
case PREF_STRING:
PersistString(model.Name, values);
break;
case PREF_INT:
PersistInt(model.Name, values);
break;
case PREF_DATETIME:
PersistDateTime(model.Name, values);
break;
default:
throw new InvalidOperationException("update unsupported uri : " + uri);
}
return(0);
}
public override ICursor Query(Android.Net.Uri uri, string[] projection, string selection, string[] selectionArgs, string sortOrder)
{
MatrixCursor cursor = null;
PrefModel model = GetPrefModelByUri(uri);
try
{
switch (sUriMatcher.Match(uri))
{
case PREF_BOOLEAN:
if (GetDPreference(model.Name).HasKey(model.Key))
{
cursor = PreferenceToCursor(new Java.Lang.Boolean((GetDPreference(model.Name).GetPrefBoolean(model.Key, false))));
}
break;
case PREF_STRING:
if (GetDPreference(model.Name).HasKey(model.Key))
{
cursor = PreferenceToCursor(new Java.Lang.String((GetDPreference(model.Name).GetPrefString(model.Key, ""))));
}
break;
case PREF_INT:
if (GetDPreference(model.Name).HasKey(model.Key))
{
cursor = PreferenceToCursor((Java.Lang.Integer)(GetDPreference(model.Name).GetPrefInt(model.Key, -1)));
}
break;
case PREF_LONG:
if (GetDPreference(model.Name).HasKey(model.Key))
{
cursor = PreferenceToCursor((Java.Lang.Long)(GetDPreference(model.Name).GetPrefLong(model.Key, -1)));
}
break;
case PREF_DATETIME:
if (GetDPreference(model.Name).HasKey(model.Key))
{
cursor = PreferenceToCursor((Java.Lang.Long)(GetDPreference(model.Name).GetPrefLong(model.Key, -1)));
}
break;
}
return(cursor);
}
catch (Exception exQuery)
{
for (int i = 0; i < 10; i++)
{
Debug.WriteLine($"PreferenceProvider Query Exception: {exQuery.Message} ON pref: {sUriMatcher.Match(uri)}\nKey: {model.Key}");
}
throw exQuery;
}
}
public override int Delete(Android.Net.Uri uri, string selection, string[] selectionArgs)
{
switch (sUriMatcher.Match(uri))
{
case PREF_BOOLEAN:
case PREF_LONG:
case PREF_STRING:
case PREF_INT:
case PREF_DATETIME:
PrefModel model = GetPrefModelByUri(uri);
if (model != null)
{
GetDPreference(model.Name).RemovePreference(model.Key);
}
break;
default:
throw new InvalidOperationException(" unsupported uri : " + uri);
}
return(0);
}