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

// 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

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

import UIKit

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

- (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

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

import AssetsLibrary
import MobileCoreServices


/// 保存gif图到相册
func saveGif2Album() {
    let gifPath = Bundle.main.path(forResource: "name", ofType: "gif")
    let gifData = NSData(contentsOfFile: gifPath!) as Data
  
    let library = ALAssetsLibrary()

SongJiaqiang

// Create a UIImage from sample buffer data
- (UIImage *) imageFromSampleBuffer:(CMSampleBufferRef) sampleBuffer {
    // Get a CMSampleBuffer's Core Video image buffer for the media data
    CVImageBufferRef imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer);
    
    // Lock the base address of the pixel buffer
    CVPixelBufferLockBaseAddress(imageBuffer, 0);
	
    // Get the number of bytes per row for the pixel buffer
    void *baseAddress = CVPixelBufferGetBaseAddress(imageBuffer);

SongJiaqiang

/** 跳转AppStore app */
- (void)goAppStore:(NSString *)appId {
    if (!appId || appId.length == 0) {
        logError(@">> TTAD: AppId不能为空");
        return;
    }
    
    logInfo(@">> TTAD: 跳转到内置appstore页: %@", appId);
    NSString *urlStr = [NSString stringWithFormat:@"https://itunes.apple.com/cn/app/id%@", appId];
    NSURL *openURL = [NSURL URLWithString:urlStr];

SongJiaqiang

/** 跳转AppStore app */
- (void)goAppStore:(NSString *)appId {
    if (!appId || appId.length == 0) {
        logError(@">> TTAD: AppId不能为空");
        return;
    }
    
    logInfo(@">> TTAD: 跳转到内置appstore页: %@", appId);
    NSString *urlStr = [NSString stringWithFormat:@"https://itunes.apple.com/cn/app/id%@", appId];
    NSURL *openURL = [NSURL URLWithString:urlStr];