public static void SetDateTime(Context context, String name, String key, DateTime value)
{
Android.Net.Uri URI = PreferenceProvider.BuildUri(name, key, PreferenceProvider.PREF_LONG);
ContentValues cv = new ContentValues();
cv.Put(PreferenceProvider.PREF_KEY, key);
cv.Put(PreferenceProvider.PREF_VALUE, value.ToUniversalTime().Ticks);
context.ContentResolver.Update(URI, cv, null, null);
}
public static void SetLong(Context context, String name, String key, long value)
{
Android.Net.Uri URI = PreferenceProvider.BuildUri(name, key, PreferenceProvider.PREF_LONG);
ContentValues cv = new ContentValues();
cv.Put(PreferenceProvider.PREF_KEY, key);
cv.Put(PreferenceProvider.PREF_VALUE, value);
context.ContentResolver.Update(URI, cv, null, null);
}
public static void SetBoolean(Context context, String name, String key, bool value)
{
Android.Net.Uri URI = PreferenceProvider.BuildUri(name, key, PreferenceProvider.PREF_BOOLEAN);
ContentValues cv = new ContentValues();
cv.Put(PreferenceProvider.PREF_KEY, key);
cv.Put(PreferenceProvider.PREF_VALUE, value ? 1 : 0);
context.ContentResolver.Update(URI, cv, null, null);
}
public static String GetString(Context context, String name, String key, String defaultValue)
{
Android.Net.Uri URI = PreferenceProvider.BuildUri(name, key, PreferenceProvider.PREF_STRING);
String value = defaultValue;
ICursor cursor = context.ContentResolver.Query(URI, null, null, null, null);
if (cursor != null && cursor.MoveToFirst())
{
value = cursor.GetString(cursor.GetColumnIndex(PreferenceProvider.PREF_VALUE));
}
IOUtils.CloseQuietly(cursor);
return(value);
}
public static DateTime GetDateTime(Context context, String name, String key, DateTime defaultValue)
{
Android.Net.Uri URI = PreferenceProvider.BuildUri(name, key, PreferenceProvider.PREF_LONG);
DateTime value = defaultValue;
ICursor cursor = context.ContentResolver.Query(URI, null, null, null, null);
if (cursor != null && cursor.MoveToFirst())
{
var ticks = cursor.GetLong(cursor.GetColumnIndex(PreferenceProvider.PREF_VALUE));
value = new DateTime(ticks, DateTimeKind.Utc);
}
IOUtils.CloseQuietly(cursor);
return(value);
}
public static bool GetBoolean(Context context, String name, String key, bool defaultValue)
{
Android.Net.Uri URI = PreferenceProvider.BuildUri(name, key, PreferenceProvider.PREF_BOOLEAN);
int value = defaultValue ? 1 : 0;
ICursor cursor = context.ContentResolver.Query(URI, null, null, null, null);
if (cursor != null && cursor.MoveToFirst())
{
var cursorValue = cursor.GetString(cursor.GetColumnIndex(PreferenceProvider.PREF_VALUE));
value = cursorValue == "true" ? 1 : 0;
}
IOUtils.CloseQuietly(cursor);
return(value == 1);
}
public static bool HasKey <T>(Context context, string key, string name)
{
var type = typeof(T);
if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable <>))
{
type = Nullable.GetUnderlyingType(type);
}
int pref;
if (type == typeof(bool))
{
pref = PreferenceProvider.PREF_BOOLEAN;
}
else if (type == typeof(string))
{
pref = PreferenceProvider.PREF_STRING;
}
else if (type == typeof(int))
{
pref = PreferenceProvider.PREF_INT;
}
else if (type == typeof(long))
{
pref = PreferenceProvider.PREF_LONG;
}
else if (type == typeof(DateTime))
{
pref = PreferenceProvider.PREF_DATETIME;
}
else
{
throw new NotImplementedException($"There is no PREF for the type {type.Name}");
}
Android.Net.Uri URI = PreferenceProvider.BuildUri(name, key, pref);
return(context.ContentResolver.Query(URI, null, null, null, null) != null);
}
public static void Remove(Context context, String name, String key)
{
Android.Net.Uri URI = PreferenceProvider.BuildUri(name, key, PreferenceProvider.PREF_STRING);
context.ContentResolver.Delete(URI, null, null);
}