我试图发送使用一个PDF UIActivityViewController 。 到目前为止，一切工作正常使用相当基本的做法，但在一个问题我有是，当我选择通过邮件选项发送的PDF文件的文件名是Attachment-1而不是Calculation.PDF这是我给的文件名。
我不介意太多更改标题的，但缺乏.pdf扩展的似乎的文件与Windows PC的发送人的时候，我想，以修复出现问题了。
我有一个看看： UIImage的控制文件名与UIActivityViewController发
但是，看不到一个等效的方法：
[mailComposer addAttachmentData: UIImagePNGRepresentation(viewImage) mimeType:@"" fileName:@"myImage.png"];
将与PDF文件工作。 这东西是不是可以解决没有定制或者是有一个简单的解决这个问题呢？
试试这个
NSData *pdfData = [NSData dataWithContentsOfFile:pdfFilePath];
UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:@[@"Test", pdfData] applicationActivities:nil];
[self presentViewController:activityViewController animated:YES completion:nil];
并且
NSString *str = [[NSBundle mainBundle] pathForResource:@"AppDistributionGuide" ofType:@"pdf"];
UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:@[@"Test", [NSURL fileURLWithPath:str]] applicationActivities:nil];
//在斯威夫特
let url = NSURL.fileURLWithPath(fileName)
let activityViewController = UIActivityViewController(activityItems: [url] , applicationActivities: nil)
presentViewController(activityViewController,
animated: true,
completion: nil)
上述关于上市斯威夫特斯威夫特3已经过时
let url = NSURL.fileURL(withPath: fileName)
let activityViewController = UIActivityViewController(activityItems: [url] , applicationActivities: nil)
present(activityViewController,
animated: true,
completion: nil)
在这里，我附code.I刚添加线程处理时出示“activityViewController”因为这个视图控制器进行负载的实际数据存在的。
let url = NSURLfileURL(withPath:fileName)
let activityViewController = UIActivityViewController(activityItems: [url] , applicationActivities: nil)
DispatchQueue.main.async {
self.present(activityViewController, animated: true, completion: nil)
}
对于斯威夫特3
你必须有一个URL和你要发送的PDF的路径列。
let urlArray = [pdfPath1, pdfPath2]
然后创建一个UIActivityViewController ：
let activityController = UIActivityViewController(activityItems: urlArray, applicationActivities: nil)
如果你正在使用UIBarButtonItem做出那个动作，就可以实现该功能防止iPad上的错误：
if let popover = activityController.popoverPresentationController {
popover.barButtonItem = self.barButtonItem
}
最后，你必须出示activityController ：
self.present(activityController, animated: true, completion: nil)
对于Objective-C的测试代码共享PDF
- (void)downloadPDFfile:(NSString *)fileName withFileURL:(NSString *)shareURL {
dispatch_async(dispatch_get_main_queue(), ^ {
NSString *documentDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject];
NSString *filePath = [documentDir stringByAppendingPathComponent:[NSString stringWithFormat:@"/%@",[self generateName:fileName withFiletype:@"pdf"]]];
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:shareURL]];
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *task = [session dataTaskWithRequest:request
completionHandler:
^(NSData *data, NSURLResponse *response, NSError *error) {
if (error) {
NSLog(@"Download Error:%@",error.description);
} else if (data && error == nil) {
dispatch_async(dispatch_get_main_queue(), ^{
[data writeToFile:filePath atomically:YES];
[self shareFile:fileName withFilepath:filePath];
});
}
}];
[task resume];
});
}
-(void)shareFile:(NSString*)withfileName withFilepath:(NSString*)filePath {
NSMutableArray *items = [NSMutableArray array];
if (filePath) {
[items addObject:[NSURL fileURLWithPath:filePath]];
}
UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:items applicationActivities:nil];
[activityViewController setValue:withfileName forKey:@"subject"];
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
activityViewController.modalPresentationStyle = UIModalPresentationPopover;
UIPopoverPresentationController *popPC = activityViewController.popoverPresentationController;
popPC.sourceView = self.view;
CGRect sourceRext = CGRectZero;
sourceRext.origin = CGPointMake(self.view.frame.size.width-30, 0);
popPC.sourceRect = sourceRext;
popPC.permittedArrowDirections = UIPopoverArrowDirectionDown;
}
[activityViewController setCompletionWithItemsHandler:
^(NSString *activityType, BOOL completed, NSArray *returnedItems, NSError *activityError) {
}];
[self presentViewController:activityViewController animated:YES completion:nil];
}
-(NSString*)generateName:(NSString*)title withFiletype:(NSString*)type {
NSString *subject = [title stringByReplacingOccurrencesOfString:@" " withString:@"_"];
subject = [NSString stringWithFormat:@"%@.%@",subject,type];
return subject;
}
调用函数像下面
[self downloadPDFfile:@"yourFileName" withFileURL:shareURL];
通过Muruganandham k处的答复很简单，很优雅。 然而，这并不在iOS版9中为了使其工作，如果您删除@[@"Test" ，只是通过pdfData，附件而成。
NSData *pdfData = [NSData dataWithContentsOfFile:pdfFilePath];
UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:pdfData applicationActivities:nil];
[self presentViewController:activityViewController animated:YES completion:nil];
可试试这个..
#define IS_IPAD UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad
// Validate PDF using NSData
- (BOOL)isValidePDF:(NSData *)pdfData {
BOOL isPDF = false;
if (pdfData.length >= 1024 ) {
int startMetaCount = 4, endMetaCount = 5;
// check pdf data is the NSData with embedded %PDF & %%EOF
NSData *startPDFData = [NSData dataWithBytes:"%PDF" length:startMetaCount];
NSData *endPDFData = [NSData dataWithBytes:"%%EOF" length:endMetaCount];
// startPDFData, endPDFData data are the NSData with embedded in pdfData
NSRange startRange = [pdfData rangeOfData:startPDFData options:0 range:NSMakeRange(0, 1024)];
NSRange endRange = [pdfData rangeOfData:endPDFData options:0 range:NSMakeRange(0, pdfData.length)];
if (startRange.location != NSNotFound && startRange.length == startMetaCount && endRange.location != NSNotFound && endRange.length == endMetaCount ) {
// This assumes the checkstartPDFData doesn't have a specific range in file pdf data
isPDF = true;
} else {
isPDF = false;
}
}
return isPDF;
}
// Download PDF file in asynchronous way and validate pdf file formate.
- (void)downloadPDFfile:(NSString *) fileName withFileURL:(NSString *) url {
NSString *filePath = @"";
dispatch_async(dispatch_get_main_queue(), ^ {
NSString *documentDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject];
filePath = [documentDir stringByAppendingPathComponent:[NSString stringWithFormat:@"/Attachments/%@",[self generateName:fileName withFiletype:@"pdf"]]];
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:url]];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue currentQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
if (error) {
NSLog(@"Download Error:%@",error.description);
} else if (data && error == nil) {
bool checkPdfFormat = [self isValidePDF:data];
if (checkPdfFormat) {
//saving is done on main thread
dispatch_async(dispatch_get_main_queue(), ^{
[data writeToFile:filePath atomically:YES];
NSURL *url = [NSURL fileURLWithPath:filePath];
[self triggerShare:fileName withFilepath:filePath];
});
}
}
}];
});
}
// Trigger default share and print functionality using UIActivityViewController
-(void) triggerShare:(NSString*)fileName withFilepath:(NSString*)filePath {
* Set this available field on the activity controller */
NSMutableArray *items = [NSMutableArray array];
if (filePath) {
[items addObject:[NSURL fileURLWithPath:filePath]];
}
UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:items applicationActivities:nil];
[activityViewController setValue:fileName forKey:@"subject"]; // Set the mail subject.
if (IS_IPAD) {
activityViewController.modalPresentationStyle = UIModalPresentationPopover;
UIPopoverPresentationController *popPC = activityViewController.popoverPresentationController;
popPC.sourceView = self.view;
CGRect sourceRext = CGRectZero;
sourceRext.origin = CGPointMake(self.view.frame.size.width-30, 0 ); // I have share button in navigation bar. ;)
popPC.sourceRect = sourceRext;
popPC.permittedArrowDirections = UIPopoverArrowDirectionUp;
}
[activityViewController setCompletionWithItemsHandler:
^(NSString *activityType, BOOL completed, NSArray *returnedItems, NSError *activityError) {
}];
[self presentViewController:activityViewController animated:YES completion:nil];
}
-(NSString*) generateName:(NSString*)title withFiletype:(NSString*)type {
NSString *subject = [title stringByReplacingOccurrencesOfString:@" " withString:@"_"];
subject = [NSString stringWithFormat:@"%@.%@",subject,type];
return subject;
}
