SQFileViewer

Class which provides viewing other files with url. Supported formats:

• iWork documents
• Microsoft Office documents (Office ‘97 and newer)
• Rich Text Format (RTF) documents
• PDF files
• Images
• Text files whose uniform type identifier (UTI) conforms to the public.text type (see Uniform Type Identifiers Reference)
• Comma-separated value (csv) files

Requirements

iOS 8+

Usage

Implement SQPhotoPicker podspec

pod 'SQUtils/SQPhotoPicker', :git => 'https://github.com/sequenia/SQUtils.git'

Import SQAttachment protocol

#import "SQAttachment.h"

Implement SQAttachment protocol for your data class (Data in my case) in the header file

@interface Data (SQAttachment) <SQAttachment>
@end

Realize SQAttachment protocol methods in the .m-file

• Put this code:

@implementation Data (SQAttachment)

• Realize fileUrl-method which returned link to your file (self.link in my case)

- (NSURL *) fileUrl {
    return [NSURL URLWithString:self.link];
}

• Realize fileName-method which returned name of your file (self.name in my case)

- (NSString *) fileName {
    return self.name;
}

• Realize setter method for fileUrl-property. Don't ask me how it works. Just copy and paste code to your class :D

- (void) setFileUrl:(NSURL *)url {
    _link = url.absoluteString;
}

Import SQFileViewer class to your controller

• Import SQFileViewer class

#import "SQFileViewer.h"

• Set property

@property SQFileViewer *fileViewer;

• And realize getter for this fileViewer. If you will set SQFileViewerDelegate delegate, you can setting progress of loading independently. Else SQFileViewer will show alert with progress label and cancel button.

- (SQFileViewer *) fileViewer {
    if (!_fileViewer){
        _fileViewer = [SQFileViewer fileViewerWithFileAttachments:array
                                                         delegate:nil];
    }
    return _fileViewer;
}

⚠️ NOTE: array is the NSArray of id<SQAttachment> objects

• Controlling of file downloading progress

- (void) fileDownloadedBy:(CGFloat)progress {
    //set progress independently
    self.progressView.progress = progress; //for example
}

And last step

	[self.fileViewer openFileAt://index of your file
                     controller:self
                     completion:^(UIViewController *fileViewerController, NSError *error) {
                         if (!error && fileViewerController){
                             [self presentViewController: fileViewerController
                                                animated: YES
                                              completion: nil];
                         } else {
                             if (error.code != kCFURLErrorCancelled){
                                 NSLog(@"error = %@", error.localizedDescription);
                             }
                         }
                     }];

Author

Nikolay Kagala

Contacts

• wolferineaz, tabriz@sequenia.com
• sequenia, sequenia@sequenia.com