从文件中读取内容

发布于 2024-09-12 06:45:54 字数 1122 浏览 5 评论 0原文

NSString *contentPath = [[NSBundle mainBundle] pathForResource:@"test2" ofType:@"rtf"];
NSData *databuffer;

NSFileHandle *file = [NSFileHandle fileHandleForReadingAtPath:contentPath];

if (file == nil)
    NSLog(@"Failed to open file");

databuffer = [file readDataToEndOfFile];

[file closeFile];

NSString *contentText =[[NSString alloc] initWithData:databuffer encoding:NSUTF8StringEncoding];

debugLog(@"%@",contentText);

[textView setText:contentText];
[contentText release];

//[textView setText:[bookObj commentary]];
[self.view addSubview:textView];

输出：

i\ansicpg1252\cocoartf1038\cocoasubrtf320
{\fonttbl\f0\froman\fcharset0 Times-Roman;}
{\colortbl;\red255\green255\blue255;}
\margl1440\margr1440\vieww9000\viewh8400\viewkind0
\deftab720
\pard\pardeftab720\ql\qnatural
\f0\fs24 \cf0 流是编程中的基本抽象：从一个点串行传输到另一个点的一系列位。 Cocoa 提供了三个类来表示流并方便它们在程序中的使用：NSStream、NSInputStream 和 NSOutputStream。通过这些类的实例，您可以从文件和应用程序内存中读取数据，并向其中写入数据。您还可以在基于套接字的情况下使用这些对象

如何过滤那些粗体数据..???

原文

NSString *contentPath = [[NSBundle mainBundle] pathForResource:@"test2" ofType:@"rtf"];
NSData *databuffer;

NSFileHandle *file = [NSFileHandle fileHandleForReadingAtPath:contentPath];

if (file == nil)
    NSLog(@"Failed to open file");

databuffer = [file readDataToEndOfFile];

[file closeFile];

NSString *contentText =[[NSString alloc] initWithData:databuffer encoding:NSUTF8StringEncoding];

debugLog(@"%@",contentText);

[textView setText:contentText];
[contentText release];

//[textView setText:[bookObj commentary]];
[self.view addSubview:textView];

Output:

i\ansicpg1252\cocoartf1038\cocoasubrtf320
{\fonttbl\f0\froman\fcharset0 Times-Roman;}
{\colortbl;\red255\green255\blue255;}
\margl1440\margr1440\vieww9000\viewh8400\viewkind0
\deftab720
\pard\pardeftab720\ql\qnatural
\f0\fs24 \cf0 A stream is a fundamental abstraction in programming: a sequence of bits transmitted serially from one point to another point. Cocoa provides three classes to represent streams and facilitate their use in your programs: NSStream, NSInputStream, and NSOutputStream. With the instances of these classes you can read data from, and write data to, files and application memory. You can also use these objects in socket-based

How to filter those bold data..???

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清风挽心 2024-09-19 06:45:54

您正在尝试将 RTF 文本加载到纯字符串中。请改用 NSAttributedString 或将文件转换为纯文本。

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生生漫 2024-09-19 06:45:54

我不知道您是否也打算编辑此文本或只是显示它，但我知道的唯一可行的方法是使用 UIWebView

NSString *path = [[NSBundle mainBundle] pathForResource:@"test2" ofType:@"rtf"];
NSURL *url = [NSURL fileURLWithPath:path];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[webview loadRequest:request];

I dont know if you were planning to edit this text as well or just display it but the only workable way I know is to use a UIWebView

NSString *path = [[NSBundle mainBundle] pathForResource:@"test2" ofType:@"rtf"];
NSURL *url = [NSURL fileURLWithPath:path];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[webview loadRequest:request];

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