iOS存储字符串到本地txt文件
- (void)writeToTXTFileWithString:(NSString *)string fileName:(NSString *)fileName {
dispatch_async(dispatch_get_global_queue(0, 0), ^{
@synchronized (self) {
//获取沙盒路径
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);
//获取文件路径
NSString *fullName = [NSString stringWithFormat:@"%@.txt", fileName];
NSString *theFilePath = [[paths objectAtIndex:0] stringByAppendingPathComponent:fullName];
//创建文件管理器
NSFileManager *fileManager = [NSFileManager defaultManager];
//如果文件不存在 创建文件
if(![fileManager fileExistsAtPath:theFilePath]){
[@"" writeToFile:theFilePath atomically:YES encoding:NSUTF8StringEncoding error:nil];
}
NSFileHandle *fileHandle = [NSFileHandle fileHandleForUpdatingAtPath:theFilePath];
[fileHandle seekToEndOfFile]; //将节点跳到文件的末尾
NSData* stringData = [[NSString stringWithFormat:@"%@\n",string] dataUsingEncoding:NSUTF8StringEncoding];
[fileHandle writeData:stringData]; //追加写入数据
[fileHandle closeFile];
}
});
}
原稿：https://www.jianshu.com/p/e550f287a187
