我从教程中输入了以下代码,但我无法让它工作......它说“'NSFilemanager'没有可见的@interface声明了[fileHandle seekToEndOfFile]的选择器......; [fileHandle writeData: [resultLine dataUsingEncoding:NSUTF8StringEncoding ]]; [fileHandle closeFile]; 部分..
知道问题是什么,因为我经历了很多次。谢谢马特
- (IBAction)SaveText:(id)sender {
NSString *resultLine =[NSString stringWithFormat:@"%@\n",
self.inputText];
NSString *docPath = [NSSearchPathForDirectoriesInDomains(NSDocumentationDirectory, NSUserDomainMask,YES)objectAtIndex:0];
// textMsg.text = docPath;
NSString *savedTextMsg =[docPath stringByAppendingPathComponent:@"textMessage.csv"];
if (![[NSFileManager defaultManager] fileExistsAtPath:docPath]) {
[[NSFileManager defaultManager]
createFileAtPath:savedTextMsg contents:nil attributes:nil];
}
NSFileManager *fileHandle = [NSFileHandle fileHandleForUpdatingAtPath:savedTextMsg];
[fileHandle seekToEndOfFile];
[fileHandle writeData:[resultLine dataUsingEncoding:NSUTF8StringEncoding ]];
[fileHandle closeFile];
self.textMsg.text =@"";
NSLog(@"info saved");
}