我只想在iPhone应用程序的documents文件夹中创建新文件夹。
有人知道该怎么做吗?
感谢你的帮助!
我只想在iPhone应用程序的documents文件夹中创建新文件夹。
有人知道该怎么做吗?
感谢你的帮助!
Answers:
我通过以下方式进行操作:
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0]; // Get documents folder
NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:@"/MyFolder"];
if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath])
[[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:&error]; //Create folder
我没有足够的声誉来评论Manni的答案,但是[paths objectAtIndex:0]是获取应用程序文档目录的标准方法
由于NSSearchPathForDirectoriesInDomains函数最初是为Mac OS X设计的,因此每个目录中可能有多个目录,因此它返回路径数组,而不是单个路径。在iOS中,结果数组应包含目录的单个路径。清单3-1显示了此函数的典型用法。
清单3-1获取应用程序的Documents目录的路径
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString* path = [@"~/Documents" stringByExpandingTildeInPath];
Swift 3解决方案:
private func createImagesFolder() {
// path to documents directory
let documentDirectoryPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first
if let documentDirectoryPath = documentDirectoryPath {
// create the custom folder path
let imagesDirectoryPath = documentDirectoryPath.appending("/images")
let fileManager = FileManager.default
if !fileManager.fileExists(atPath: imagesDirectoryPath) {
do {
try fileManager.createDirectory(atPath: imagesDirectoryPath,
withIntermediateDirectories: false,
attributes: nil)
} catch {
print("Error creating images folder in documents dir: \(error)")
}
}
}
}
我不喜欢“ [paths objectAtIndex:0]”,因为如果Apple添加以“ A”,“ B”或“ C”开头的新文件夹,则“文档”文件夹不是目录中的第一个文件夹。
更好:
NSString *dataPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/MyFolder"];
if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath])
[[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:&error]; //Create folder
该夫特2溶液:
let documentDirectoryPath: String = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true).first!
if !NSFileManager.defaultManager().fileExistsAtPath(documentDirectoryPath) {
do {
try NSFileManager.defaultManager().createDirectoryAtPath(documentDirectoryPath, withIntermediateDirectories: false, attributes: nil)
} catch let createDirectoryError as NSError {
print("Error with creating directory at path: \(createDirectoryError.localizedDescription)")
}
}
这对我来说很好
NSFileManager *fm = [NSFileManager defaultManager];
NSArray *appSupportDir = [fm URLsForDirectory:NSDocumentsDirectory inDomains:NSUserDomainMask];
NSURL* dirPath = [[appSupportDir objectAtIndex:0] URLByAppendingPathComponent:@"YourFolderName"];
NSError* theError = nil; //error setting
if (![fm createDirectoryAtURL:dirPath withIntermediateDirectories:YES
attributes:nil error:&theError])
{
NSLog(@"not created");
}
迅捷4.0
let paths = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)
// Get documents folder
let documentsDirectory: String = paths.first ?? ""
// Get your folder path
let dataPath = documentsDirectory + "/yourFolderName"
if !FileManager.default.fileExists(atPath: dataPath) {
// Creates that folder if not exists
try? FileManager.default.createDirectory(atPath: dataPath, withIntermediateDirectories: false, attributes: nil)
}
以下代码可能有助于创建目录:
-(void) createDirectory : (NSString *) dirName {
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0]; // Fetch path for document directory
dataPath = (NSMutableString *)[documentsDirectory stringByAppendingPathComponent:dirName];
NSError *error;
if (![[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:&error]) {
NSLog(@"Couldn't create directory error: %@", error);
}
else {
NSLog(@"directory created!");
}
NSLog(@"dataPath : %@ ",dataPath); // Path of folder created
}
用法:
[self createDirectory:@"MyFolder"];
结果:
目录已创建!
dataPath:/ var / mobile / Applications / BD4B5566-1F11-4723-B54C-F1D0B23CBC / Documents / MyFolder
Swift 1.2和iOS 8
在文件目录内创建自定义目录(名称=“ MyCustomData”),但前提是该目录不存在。
// path to documents directory
let documentDirectoryPath = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true).first as! String
// create the custom folder path
let myCustomDataDirectoryPath = documentDirectoryPath.stringByAppendingPathComponent("/MyCustomData")
// check if directory does not exist
if NSFileManager.defaultManager().fileExistsAtPath(myCustomDataDirectoryPath) == false {
// create the directory
var createDirectoryError: NSError? = nil
NSFileManager.defaultManager().createDirectoryAtPath(myCustomDataDirectoryPath, withIntermediateDirectories: false, attributes: nil, error: &createDirectoryError)
// handle the error, you may call an exception
if createDirectoryError != nil {
println("Handle directory creation error...")
}
}