我正在制作一个带有嵌入式 SQLite 数据库的 iOS 应用程序。所以我在 SQLite 管理员中创建了我的数据库并将其拖到我的 Xcode 项目中,就像教程中所说的那样。当我尝试打开我的数据库时,我收到此错误:“内存不足”。不知道是 SQLite 错误还是什么,但我的文件非常小,不会出现内存问题。
这是我初始化数据库的代码:
- (id)initWithPath:(NSString *)path {
if (self = [super init]) {
BOOL success;
NSError *error;
NSFileManager *fileManager = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *dbPath = [documentsDirectory stringByAppendingPathComponent:@"SoundLib_DB.sqlite"];
if ([fileManager fileExistsAtPath:dbPath] == NO) {
NSString *resourcePath = [[NSBundle mainBundle] pathForResource:@"SoundLib_DB" ofType:@"sqlite"];
[fileManager copyItemAtPath:resourcePath toPath:dbPath error:&error];
}
success = [fileManager fileExistsAtPath:dbPath];
if(!success)
{
NSLog(@"Cannot locate database file '%@'.", dbPath);
}
sqlite3 *dbConnection;
//Here is when I get the error, at trying to open the DB
if (sqlite3_open_v2("SoundLib", &dbConnection, SQLITE_OPEN_READWRITE, NULL) != SQLITE_OK) {
NSLog(@"[SQLITE] Unable to open database!");
NSLog(@"%s Prepare failure '%s' (%1d)", __FUNCTION__, sqlite3_errmsg(database), sqlite3_errcode(database));
return nil;
}
database = dbConnection;
}
return self;
}