将SQLite添加到Android NDK项目 我是Android开发者，但在Android NDK中是新手，现在我正尝试通过Android NDK编写C++应用程序，所有与数据库的工作也应该用C++代码完成。我将sqlite添加到项目中（我不确定是否正确）：我下载并将这四个文件（shell.c、sqlite3.c、sqlite3.h、slite3ext.h）保存到src/main/cpp/sqlite文件夹中。这是我的CMakeList.txt，我将sqlite添加到该项目中： add_library(native-lib SHARED src/main/cpp/native-lib.cpp src/main/cpp/sqlite/sqlite3.c )

我做得对吗？我如何在代码中使用它（连接到数据库、创建表、插入数据、更新数据…）

您的项目中需要有以下3个文件：

sqlite3.c

，

sqlite3.h

，

sqlite3ext.h

（不确定最后一个文件）。基本操作（创建数据库、创建表和插入值）：

插入：

bool insertToDb(CityWeather *pCityWeather) {
    sqlite3 *db;
    char *zErrMsg = 0;
    int rc;

    /* Open database */
    rc = sqlite3_open(databaseName, &db);
    if (rc) {
        sqlite3_open_v2(DB_FILE, &db, SQLITE_OPEN_CREATE | SQLITE_OPEN_READWRITE, NULL);
    }

    const char *pCityName = pCityWeather->getName().c_str();
    char insertQuery[50];
    strcpy (insertQuery,"INSERT INTO cities (name) VALUES ('");
    strcat (insertQuery, pCityName);
    strcat (insertQuery, "');");
    puts (insertQuery);

    delete pCityWeather;

    /* Execute SQL statement */
    rc = sqlite3_exec(db, insertQuery, callback, 0, &zErrMsg);
    if (rc != SQLITE_OK) {
        sqlite3_free(zErrMsg);
    }
    sqlite3_close(db);
    return true;
}

bool insertToDb(CityWeather *pCityWeather) {
    sqlite3 *db;
    char *zErrMsg = 0;
    int rc;

    /* Open database */
    rc = sqlite3_open(databaseName, &db);
    if (rc) {
        sqlite3_open_v2(DB_FILE, &db, SQLITE_OPEN_CREATE | SQLITE_OPEN_READWRITE, NULL);
    }

    const char *pCityName = pCityWeather->getName().c_str();
    char insertQuery[50];
    strcpy (insertQuery,"INSERT INTO cities (name) VALUES ('");
    strcat (insertQuery, pCityName);
    strcat (insertQuery, "');");
    puts (insertQuery);

    delete pCityWeather;

    /* Execute SQL statement */
    rc = sqlite3_exec(db, insertQuery, callback, 0, &zErrMsg);
    if (rc != SQLITE_OK) {
        sqlite3_free(zErrMsg);
    }
    sqlite3_close(db);
    return true;
}