1

让二进制代码使用 dataFromBase64String 将其转换为 nsdata。并成功加载它的 web 视图。但是希望pdf文件不存储在documentsDirectory中。需要添加一个按钮单击用户单击该按钮，然后将发生二进制到pdf转换并显示在Web视图中。这是我的代码。怎么可能帮助我。提前谢谢。

  NSString *binaryString =@"Binary code to change";
  myData = [NSData dataFromBase64String: binaryString];
  [self savePDF:myData];


- (void)savePDF:(NSData *)pdfContent
{
    NSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory, NSUserDomainMask ,YES );
    NSString *documentsDirectory = [paths objectAtIndex:0];

   finalPath = [documentsDirectory stringByAppendingPathComponent:@"myPdf.pdf"];
    NSLog(@"%@",finalPath);
    NSURL *url = [NSURL fileURLWithPath:finalPath];
    [pdfContent writeToURL:url atomically:YES];
     [aWebView loadRequest:[NSURLRequest requestWithURL:url]];
}
4

1 回答 1

2

如果您不想将 pdf 文件存储到 DocumentsDirectory，请尝试以下操作，希望它对您有用

NSString *binaryString =@"Binary code to change";
  myData = [NSData dataFromBase64String: binaryString];
  [self savePDF:myData];


- (void)savePDF:(NSData *)pdfContent
{
    NSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory, NSUserDomainMask ,YES );
    NSString *documentsDirectory = [paths objectAtIndex:0];

   finalPath = [documentsDirectory stringByAppendingPathComponent:@"myPdf.pdf"];
    NSLog(@"%@",finalPath);
    NSURL *url = [NSURL fileURLWithPath:finalPath];
    //[pdfContent writeToURL:url atomically:YES];
     [aWebView loadRequest:[NSURLRequest requestWithURL:url]];
}

注释//[pdfContent writeToURL:url atomically:YES];行并检查

于 2016-07-21T07:12:53.600 回答