iOS 沙盒的用法

最新推荐文章于 2025-01-13 10:58:21 发布

转载最新推荐文章于 2025-01-13 10:58:21 发布 · 380 阅读

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#ios开发 #数据存储 #沙盒

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本文详细介绍了如何使用Objective-C创建沙盒，并在此基础上添加文件夹和文件的操作步骤，同时展示了如何从沙盒目录中获取所有文件名。

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创建沙盒的路径：

NSFileManager *fileManager = [NSFileManager defaultManager];
NSArray *documentPaths= NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSLog(@"documentPath %@",documentPaths);
NSString *ourDocumentPath=[documentPaths objectAtIndex:0];
NSLog(@"ourDocumentPath= %@",ourDocumentPath);
NSString *fileName=[ourDocumentPath stringByAppendingPathComponent:@"MOVeee"];
[fileManager createDirectoryAtPath:fileName withIntermediateDirectories:YES attributes:nil error:nil];

添加文件夹，添加文件

NSString *testPath = [testDirectory stringByAppendingPathComponent:@"test00.txt"];
NSString *testPath2 = [testDirectory stringByAppendingPathComponent:@"test22.txt"];
NSString *testPath3 = [testDirectory stringByAppendingPathComponent:@"test33.txt"];
NSString *string = @"写入内容，write String";
[fileManager createFileAtPath:testPath contents:[string dataUsingEncoding:NSUTF8StringEncoding] attributes:nil];
[fileManager createFileAtPath:testPath2 contents:[string dataUsingEncoding:NSUTF8StringEncoding] attributes:nil];
[fileManager createFileAtPath:testPath3 contents:[string dataUsingEncoding:NSUTF8StringEncoding] attributes:nil];

获取目录列里所有文件名

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSLog(@"documentsDirectory%@",documentsDirectory);
NSFileManager *fileManage = [NSFileManager defaultManager];
NSString *myDirectory = [documentsDirectory stringByAppendingPathComponent:@"test"];
NSArray *file = [fileManage subpathsOfDirectoryAtPath: myDirectory error:nil];
NSLog(@"%@",file);
NSArray *files = [fileManage subpathsAtPath: myDirectory ];
NSLog(@"%@",files);