iPhone App 不再有写权限

Posted 2023-03-07

【中文标题】iPhone App 不再有写权限

【英文标题】：iPhone App no longer has write permissions

【发布时间】：2012-06-20 17:11:49

【问题描述】：

我有一个需要能够写入 /var/mobile/Applications/.../Documents 目录的应用程序。这工作正常，但由于某种原因，现在当我运行我的代码时，NSFileManager createFileAtPath 每次都返回 NO。我不知道为什么会发生这种情况，还有其他人吗？我想知道我是否不小心更改了一些目标设置...

感谢您的帮助，

罗宾

注意：这发生在我尝试写入的任何数据（NSString、NSDictionary 等）

NSDictionary *dataToWrite = [[NSDictionary alloc] initWithObjectsAndKeys:@"1234", @"id", @"hfjk", @"password",nil]; 
NSArray *arrayPaths = NSSearchPathForDirectoriesInDomains(

                                                          NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docDirectory = [arrayPaths objectAtIndex:0];
filePath = [docDirectory stringByAppendingString:@"/sample-file-name"];
NSFileManager *fileMgr;
NSMutableData *data = [[NSMutableData alloc] init];
NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:data];
[archiver encodeObject:dataToWrite forKey:@"any-key"];
[archiver finishEncoding];

BOOL status = [fileMgr createFileAtPath:path contents:data attributes:nil];
if (status)
    NSLog(@"Created file at path: %@",path);
else
    NSLog(@"Failed to create file at path: %@",path);

【参考方案1】：

不写作，

filePath = [docDirectory stringByAppendingString:@"/sample-file-name"];

请检查一下

filePath = [docDirectory stringByAppendingPathComponent:@"sample-file-name"];

请查看NSFileManager Class Reference