如何在xcode中使用.srt文件显示字幕

Question

我需要在xcode的视频下显示字幕..我知道我们可以用.srt文件来显示字幕..我可以解析.srt文件..但我的问题是，我不知道如何使.srt文件中的文本在视频下显示，如何设置时间间隔。有谁能帮帮我

Answer 1

我是从堆栈溢出链接获得的.我忘了那个链接。链接中的代码是这样的-

NSString *path = [[NSBundle mainBundle] pathForResource:@"srtfilename" ofType:@"srt"];

NSString *string = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:NULL];

NSScanner *scanner = [NSScanner scannerWithString:string];

while (![scanner isAtEnd])
   {
     @autoreleasepool
     {
       NSString *indexString;

       (void) [scanner scanUpToCharactersFromSet:[NSCharacterSet newlineCharacterSet] intoString:&indexString];

       NSString *startString;
       (void) [scanner scanUpToString:@" --> " intoString:&startString];

       // My string constant doesn't begin with spaces because scanners
       // skip spaces and newlines by default.
       (void) [scanner scanString:@"-->" intoString:NULL];

       NSString *endString;
       (void) [scanner scanUpToCharactersFromSet:[NSCharacterSet newlineCharacterSet] intoString:&endString];

       NSString *textString;
       // (void) [scanner scanUpToCharactersFromSet:[NSCharacterSet newlineCharacterSet] intoString:&textString];
                // BEGIN EDIT
       (void) [scanner scanUpToString:@"\r\n\r\n" intoString:&textString];
       textString = [textString stringByReplacingOccurrencesOfString:@"\r\n" withString:@" "];
       // Addresses trailing space added if CRLF is on a line by itself at the end of the SRT file
       textString = [textString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
      // END EDIT

       NSDictionary *dictionary = [NSDictionary dictionaryWithObjectsAndKeys:
                                            indexString , @"index",
                                            startString, @"start",
                                            endString , @"end",
                                            textString , @"text",
                                            nil];


      NSLog(@"%@", dictionary); } }

我确实用这个解析了srt文件...我在电影播放器(MPMovieControlStyleNone)视图中添加了UITextView ....我确实通过使用计时器的startString和endString自动更改了文本...我只能通过自定义的播放和暂停按钮来播放和暂停播放器...