我在UIWebView和UIButton中显示PDF文件列表。当我单击按钮时,我需要将我的PDF文件保存到iBooks,以后用户可以从iBooks阅读。
这是我的代码如下:
NSString *path = [[NSBundle mainBundle] pathForResource:@"mypdf" ofType:@"pdf"];
NSURL *targetURL = [NSURL fileURLWithPath:path];
NSURLRequest *request = [NSURLRequest requestWithURL:targetURL];
UIWebView *webView=[[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 300, 300)];
[[webView scrollView] setContentOffset:CGPointMake(0,500) animated:YES];
[webView stringByEvaluatingJavaScriptFromString:[NSString stringWithFormat:@"window.scrollTo(0.0, 50.0)"]];
[webView loadRequest:request];
[self.view addSubview:webView];
[webView release];
下载的UIButton:
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self
action:@selector(download:)
forControlEvents:UIControlEventTouchDown];
[button setTitle:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
[webView addSubview:button];
-(void)download:(id)sender{
}
最佳答案
您必须为此使用UIDocumentInteractionController:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory , NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
NSString *pdfFilePath = [documentsDir stringByAppendingPathComponent:yourPdfFile.pdf];// your yourPdfFile file here
NSURL *url = [NSURL fileURLWithPath:pdfPath];
UIDocumentInteractionController *docController = [UIDocumentInteractionController interactionControllerWithURL:url];
docController.delegate = self;
[docController retain];
// docController is released when dismissed (autorelease in the delegate method)
BOOL isValid = [docController presentOpenInMenuFromRect:yourReadPdfButton.frame inView:self.view animated:YES]; // Provide where u want to read pdf from yourReadPdfButton
if (!isValid) {
NSString * messageString = [NSString stringWithFormat:@"No PDF reader was found on your device. In order to consult the %@, please download a PDF reader (eg. iBooks).", yourPDFFileTitle];
UIAlertView * alertView = [[UIAlertView alloc] initWithTitle:@"Error" message:messageString delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alertView show];
[alertView release];
}
...
// UIDocumentInteractionController delegate method
- (void)documentInteractionControllerDidDismissOpenInMenu:(UIDocumentInteractionController *)controller {
[controller autorelease];
}
希望这会帮助你。
关于ios - 将PDF文件保存到iBooks。,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/22291683/