我在ios中创建了一个文本文件,它存储在以下位置的数据文件中。Sandbox => Documents => mylogfile.txt.
仅当我将设备与Mac和Xcode连接时,此文件才会更新。如果我弹出设备,再次连接以查看更新的文本文件。它没有更新。它将与旧文件相同。从PC断开连接时,日志文件不会更新。 如何一直更新文本文件。
我的代码:
-(void)logme:(NSString *)mymessage
{
NSString *content = mymessage;
//Get the file path
NSString *documentsDirectory = [NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *fileName = [documentsDirectory stringByAppendingPathComponent:@"locationlog.txt"];
//create file if it doesn't exist
if(![[NSFileManager defaultManager] fileExistsAtPath:fileName])
[[NSFileManager defaultManager] createFileAtPath:fileName contents:nil attributes:nil];
//append text to file (you'll probably want to add a newline every write)
NSFileHandle *file = [NSFileHandle fileHandleForUpdatingAtPath:fileName];
[file seekToEndOfFile];
[file writeData:[content dataUsingEncoding:NSUTF8StringEncoding]];
[file closeFile];
}
并将此日志文件称为
[self logme:myHTML];