SongJiaqiang

func drawPDFfromURL(url: URL) -> UIImage? {
    guard let document = CGPDFDocument(url as CFURL) else { return nil }
    guard let page = document.page(at: 1) else { return nil }

    let pageRect = page.getBoxRect(.mediaBox)
    let renderer = UIGraphicsImageRenderer(size: pageRect.size)
    let img = renderer.image { ctx in
        UIColor.white.set()
        ctx.fill(pageRect)

SongJiaqiang

- (UIImage *)fixImageOrientation {
    
    UIImageOrientation originOrientation = self.imageOrientation;
    
    // No-op if the orientation is already correct
    if (originOrientation == UIImageOrientationUp) return self;
    
    // We need to calculate the proper transformation to make the image upright.
    // We do it in 2 steps: Rotate if Left/Right/Down, and then flip if Mirrored.
    CGAffineTransform transform = CGAffineTransformIdentity;

SongJiaqiang

- (void)shareVideo {
  NSString *videoPath = @"xxx/xxx/test.mp4";
  NSURL *shareURL = [NSURL fileURLWithPath:videoPath];
  NSString *shareMessage = @"Hey! Here is an interesting video. #Tag";
  NSArray *shareItems = @[shareMessage, shareURL];
        
  UIActivityViewController *controller = [[UIActivityViewController alloc] initWithActivityItems:shareItems applicationActivities:nil];
  [self presentViewController:controller animated:YES completion:nil];
}

SongJiaqiang

//
//  NavigationController.swift
//  EvoRadio
//
//  Created by Jarvis on 16/4/17.
//  Copyright © 2016年 JQTech. All rights reserved.
//

import UIKit

SongJiaqiang

// 直接翻转UIImageView
func flipImageView(imageView: UIView) {
  imageView.transform = CGAffineTransform(scaleX: -1, y: 1)
}

// 修改imageOrientation属性， 这个方法只适用于UIKit中显示的image
func flipImage(originImage: UIImage) -> UImage {
  let cgImage = originImage.cgImage!
  let flipedImage = UIImage(cgImage: originImage, 

SongJiaqiang

// show image
self.imageView.image = [UIImage imageNamed:@"imagename"];

// create effect
UIBlurEffect *blur = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight];

// add effect to an effect view
UIVisualEffectView *effectView = [[UIVisualEffectView alloc]initWithEffect:blur];
effectView.frame = self.view.frame;

SongJiaqiang

- (void)removeFile:(NSString *)filename
{
  NSFileManager *fileManager = [NSFileManager defaultManager];
  NSString *documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];

  NSString *filePath = [documentsPath stringByAppendingPathComponent:filename];
  NSError *error;
  BOOL success = [fileManager removeItemAtPath:filePath error:&error];
  if (success) {
      UIAlertView *removedSuccessFullyAlert = [[UIAlertView alloc] initWithTitle:@"Congratulations:" message:@"Successfully removed" delegate:self cancelButtonTitle:@"Close" otherButtonTitles:nil];

SongJiaqiang

- (NSString *)jsonFromDictionary:(NSDictionary *)dict {
    NSDictionary *plistDict = nil;
    if (dict != nil) {
        plistDict = dict;
    }else {
        NSString *path = [[NSBundle mainBundle] pathForResource:@"items.plist" ofType:nil];
        NSArray *array = [NSArray arrayWithContentsOfFile:path];
        plistDict = [NSDictionary dictionaryWithObject:array forKey:@"list"];
    }
    

SongJiaqiang

//
//  AuthorizationTool.h
//  Rokk
//
//  Created by Jarvis on 01/11/2016.
//  Copyright © 2016 JQTech. All rights reserved.
//

#import <Foundation/Foundation.h>

SongJiaqiang

#import <Foundation/Foundation.h>
#import <Social/Social.h>
#import <Accounts/Accounts.h>

typedef void(^VideoUploadCompletion)(BOOL success, NSString *errorMessage);
typedef void(^ResultAccount)(ACAccount *account);

@interface SocialVideoHelper : NSObject

+(void)getFirstTwitterAccount:(ResultAccount)complete;