在iPhone中创建目录

Question

我想创建一个子文件夹来存储由相机捕获的图像,还需要将图像存储到数据库中并从数据库中检索图像.

因此,请向我提供有关如何在iPhone中创建文件夹以及如何将图像存储到数据库并检索它们的帮助

Answer 1

要在documents文件夹中创建目录,

- (void)createDirectoryInDocumentsFolderWithName:(NSString *)dirName {

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *yourDirPath = [documentsDirectory stringByAppendingPathComponent:dirName];     
    NSFileManager *fileManager = [NSFileManager defaultManager];
    BOOL isDir = YES;
    BOOL isDirExists = [fileManager fileExistsAtPath:yourDirPath isDirectory:&isDir];
    if (!isDirExists) [fileManager createDirectoryAtPath:yourDirPath withIntermediateDirectories:YES attributes:nil error:nil];
}