使用Xamarin + C#开发应用 -- 使用sqlite做本地存储

1. 下载sqlite.cs:

https://github.com/praeclarum/sqlite-net/blob/master/src/SQLite.cs

2. 创建 测试实体：

    [Table("Items")]
    public class Stock
    {
        [PrimaryKey, AutoIncrement, Column("_id")]
        public int Id { get; set; }
        [MaxLength(8)]
        public string Symbol { get; set; }
    }

3. 示例
3.1 定义路径
3.2 创建连接
3.3 创建表
3.4 插入实体
3.5 打印结果

示例代码如下：

string dbPath = string.Format("{0}//{1}",
                 Environment.GetFolderPath(Environment.SpecialFolder.Personal),
                 "ormdemo.db3");

            var db = new SQLiteConnection(dbPath);

            db.CreateTable<Stock>();
            if (!db.Table<Stock>().Any())
            {
                // only insert the data if it doesn‘t already exist
                var newStock = new Stock { Symbol = "AAPL" };
                db.Insert(newStock);
                newStock = new Stock { Symbol = "GOOG" };
                db.Insert(newStock);
                newStock = new Stock { Symbol = "MSFT" };
                db.Insert(newStock);
            }

            //Console.WriteLine("Reading data");
            var sb = new StringBuffer();
            var table = db.Table<Stock>();
            foreach (var s in table)
            {
                sb.Append(s.Id + " " + s.Symbol);
            }
            return sb.ToString();