ios - ipad - 将 NSString 写入文本文件

Question

我的 xcode 项目中有文本文件text.txt，我需要从我的 iOS 应用程序中编写 NSString init。我试过这段代码

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docDir = [paths objectAtIndex: 0];
NSString *docFile = [docDir stringByAppendingPathComponent: @"text.txt"];
NSString *content = @"Test";
[content writeToFile: docFile atomically: NO];

但这对我不起作用...那你能帮我吗？

Answer 1

这对我有用

//Method writes a string to a text file
-(void) writeToTextFile{
        //get the documents directory:
        NSArray *paths = NSSearchPathForDirectoriesInDomains
            (NSDocumentDirectory, NSUserDomainMask, YES);
        NSString *documentsDirectory = [paths objectAtIndex:0];

        //make a file name to write the data to using the documents directory:
        NSString *fileName = [NSString stringWithFormat:@"%@/text.txt", 
                                                      documentsDirectory];
        //create content - four lines of text
        NSString *content = @"Test";
        //save content to the documents directory
        [content writeToFile:fileName 
                         atomically:NO 
                               encoding:NSStringEncodingConversionAllowLossy 
                                      error:nil];

}