Question

我在本地资源文件夹中有pdf文件我想用UIWebView打开这个文件，用户可以阅读。但PDF文件无法显示以供阅读。

NSString *pathToBundle = [[NSBundle mainBundle] bundlePath];
 NSURL *baseURL = [NSURL fileURLWithPath:pathToBundle];
 NSString *htmlFile = [[NSBundle mainBundle] pathForResource:@"Insupen_User_Guide" ofType:@"pdf"];
 NSString *htmlString = [NSString stringWithContentsOfFile:htmlFile encoding:NSUTF8StringEncoding error:nil];
 //CGRect fullScreenRect=[[UIScreen mainScreen]applicationFrame];
 catalogue=[[UIWebView alloc]initWithFrame:CGRectMake(50,400,600,600)];
 [catalogue loadHTMLString:htmlString baseURL:baseURL];

  catalogue.delegate=self;
 [self.view addSubview:catalogue];

Answer 1

试试这个。

NSString *strPath = [[NSBundle mainBundle]pathForResource:@"Insupen_User_Guide" ofType:@"pdf"];
[catalogue loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:[strPath stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]]];

也许这会对你有帮助。

Answer 2

NSString *path = [[NSBundle mainBundle]pathForResource:@"HR" ofType:@"pdf"];
NSURL *targeturl = [NSURL fileURLWithPath:path];
NSURLRequest *request = [NSURLRequest requestWithURL:targeturl];
//    _webview = [[UIWebView alloc]init];
[[_webview scrollView] setContentOffset:CGPointMake(0, 500) animated:YES];


[_webview stringByEvaluatingJavaScriptFromString:[NSString stringWithFormat:@"window.scrollTo(0.0, 50.0)"]];
[_webview loadRequest:request];

//完美地为我工作，你可以试试这个

Answer 3

您还可以使用此功能在UIDocumentInteractionController中显示PDF。

UIDocumentInteractionController *docController = [UIDocumentInteractionController  interactionControllerWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"PDF file name" ofType:@"pdf"]]];

    docController.delegate = self;

    //[DocView addSubview:docController];
    [docController presentPreviewAnimated:YES];

并在您的课程中添加这些委托方法。

#pragma mark  documentInteractionController methods

- (UIViewController *)documentInteractionControllerViewControllerForPreview:(UIDocumentInteractionController *)controller {
    return self;
}

- (UIView *)documentInteractionControllerViewForPreview:(UIDocumentInteractionController *)controller {
    return self.view;
}

- (CGRect)documentInteractionControllerRectForPreview:(UIDocumentInteractionController *)controller {
    return self.view.frame;
}
- (BOOL)documentInteractionController:(UIDocumentInteractionController *)controller   canPerformAction:(SEL)action{
    return FALSE;
}

Answer 4

在您发布的代码中，您正在将PDF文件的内容转换为UTF8编码的字符串，并在Web视图中显示字符串，这不是您想要的。

相反，您需要创建指向本地PDF的NSURLRequest并在Web视图中加载请求

NSString *pdfPath = [[NSBundle mainBundle] pathForResource:@"Insupen_User_Guide" ofType:@"pdf"];
NSURL *pdfUrl = [NSURL fileURLWithPath:pdfPath];
NSURLRequest *pdfUrlRequest = [NSURLRequest requestWithURL:pdfUrl];
[catalogue loadRequest:pdfUrlRequest];

本地PDF文件未在iOS中打开

4 个答案: