iOS8 无法在应用组共享容器位置下创建文件夹/文件

Question

我正在使用以下代码在共享容器路径下创建文件夹/文件。 这将有助于应用扩展程序和包含应用程序的扩展程序都可以访问数据。

获取共享容器 url 位置的代码：

+(NSURL*)getSharedContainerURLPath
{
    NSFileManager *fm = [NSFileManager defaultManager];

    NSString *appGroupName = APP_EXTENSION_GROUP_NAME; /* For example */

    NSURL *groupContainerURL = [fm containerURLForSecurityApplicationGroupIdentifier:appGroupName];

    return groupContainerURL;
}

创建目录的代码

+(void)createDirAtSharedContainerPath
{
    NSString *sharedContainerPathLocation = [[self getSharedContainerURLPath] absoluteString];    
    NSString *directoryToCreate = @"user_abc";
    //basically this is <shared_container_file_path>/user_abc
    NSString *dirPath = [sharedContainerPathLocation stringByAppendingPathComponent:directoryToCreate];

    BOOL isdir;
    NSError *error = nil;

    NSFileManager *mgr = [[NSFileManager alloc]init];

    if (![mgr fileExistsAtPath:dirPath isDirectory:&isdir]) { //create a dir only that does not exists
        if (![mgr createDirectoryAtPath:dirPath withIntermediateDirectories:YES attributes:nil error:&error]) {
                NSLog(@"error while creating dir: %@", error.localizedDescription);                
        } else {
                NSLog(@"dir was created....");
        }
    }
}

上面的代码没有引发任何错误，它表示成功，但我无法在共享容器路径下找到文件夹。 任何可能会受到赞赏的想法

Answer 1

我只是通过更改以下代码使我的代码工作

NSString *sharedContainerPathLocation = [[self getSharedContainerURLPath] absoluteString];

到

NSString *sharedContainerPathLocation = [[self getSharedContainerURLPath] path];    

Answer 2

对于斯威夫特

func createProjectDirectoryPath(path:String) -> String
    {
        let containerURL = NSFileManager.defaultManager().containerURLForSecurityApplicationGroupIdentifier("group.abc")
        let logsPath = containerURL!.URLByAppendingPathComponent(path)
        //print(logsPath.path);

        do {
            try NSFileManager.defaultManager().createDirectoryAtPath(logsPath.path!, withIntermediateDirectories: true, attributes: nil)
        } catch let error as NSError {
            NSLog("Unable to create directory \(error.debugDescription)")
        }
        return logsPath.path!
    }

使用

var strSavePath : String = self.createProjectDirectoryPath("Large")

注意：在您的应用程序组设置之后，上面的代码对于创建文件夹很有用。

Answer 3

@Hardik Thakkar Swift 5 代码此函数在共享应用程序组容器中创建目录并返回它的路径。

func createProjectDirectoryPath(path:String) -> String
{
    let containerURL = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: Constants.Notifications.appGroupIdentifier)
    let logsPath = containerURL!.appendingPathComponent(path)
    //print(logsPath.path);

    do {
        try FileManager.default.createDirectory(atPath: logsPath.path, withIntermediateDirectories: true, attributes: nil)
    } catch let error as NSError {
        print("Unable to create directory \(error.debugDescription)")
    }
    return logsPath.path
}