iphone - 生成 CSV 示例 iphone 应用程序/代码

Question

有人有在 iOS 上生成 CSV 文件的示例应用程序或示例代码吗？

Answer 1

这是生成 CSV 文件的简单代码:

NSArray *csvArray = [myTextView.text componentsSeparatedByString:@"\n"];
NSString *csvString = [csvArray componentsJoinedByString:@","];
NSLog(@"csvString:%@",csvString);

// Create .csv file and save in Documents Directory.

//create instance of NSFileManager
NSFileManager *fileManager = [NSFileManager defaultManager];

//create an array and store result of our search for the documents directory in it
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

//create NSString object, that holds our exact path to the documents directory
NSString *documentsDirectory = [paths objectAtIndex:0];
NSLog(@"Document Dir: %@",documentsDirectory);

NSString *fullPath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.csv", @"userdata"]]; //add our file to the path
[fileManager createFileAtPath:fullPath contents:[csvString dataUsingEncoding:NSUTF8StringEncoding] attributes:nil]; //finally save the path (file)