openCacheDatabase method

Future<Database> openCacheDatabase(
  1. String paths
)

打开数据库

Implementation

Future<Database> openCacheDatabase(String paths) async {
  Database database =
      await openDatabase(paths, singleInstance: false, version: dbVersion,
          //如果没有表则创建表
          onCreate: (Database db, int version) async {
    await db.execute(
        'CREATE TABLE If Not Exists $dbTableName (cacheKey TEXT PRIMARY KEY ,value TEXT)');
  }, //如果表存在则直接打开
          onOpen: (Database db) async {
    await db.execute(
        'CREATE TABLE If Not Exists $dbTableName (cacheKey TEXT PRIMARY KEY ,value TEXT)');
  });
  return database;
}