I\'m trying to send a PDF using a UIActivityViewController
. So far everything works fine using a fairly basic approach but the one issue I have is that when I s
May be try this..
#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;
}