IOS gif pictures show n ways (native + third party) _ios

This article shares the iOS GIF image display n way, for your reference, the specific contents are as follows

Native method:

1.UIWebView
Features: The loading speed is slightly long, the performance is better, the playback GIF dynamic diagram is more fluent.

Animated display GIF picture-webview
-(void) showgifimagewithwebview{
 //Read GIF picture data
 nsdata *gifdata = [NSData Datawithcontentsoffile: [[NSBundle Mainbundle] pathforresource:@ "earthgif" oftype:@ "GIF"]];
 UIWebView generates
 UIWebView *imagewebview = [[UIWebView alloc] Initwithframe:cgrectmake (112, 302, 132, 102)];
 User is not interactive
 imagewebview.userinteractionenabled = NO;
 Loading GIF data
 [Imagewebview loaddata:gifdata mimetype:@ "Image/gif" Textencodingname:nil Baseurl:nil];
 View add this GIF control
 [Self.view Addsubview:imagewebview];
}

2.UIImagView
faster loading, less performance than UIWebView, advantages: easy to scale

1)
Add a uiimageview category (category), add two methods
Uiimage+tool
. h

#import <UIKit/UIKit.h>

@interface uiimageview (Tool)

/** parsing of GIF file data the parsed data is passed out in the Block
(void ) Getgifimagewithurk: (nsurl *) URL returndata: (void (^) (nsarray<uiimage *> * Imagearray,nsarray<nsnumber *> *timearray,cgfloat totaltime, Nsarray<nsnumber *>* widths, Nsarray<nsnumber *>*)) Heights;

/** adds a method for Uiimageview to set the contents of a GIF: * *
-(void) Yh_setimage: (Nsurl *) imageUrl;

@end

. m

UIIMAGEVIEW+TOOL.M//Onehelper////Created by Qiuxuewei on 16/3/2. COPYRIGHT©2016 year Chu Cowei.
All rights reserved. #import "uiimageview+tool.h"//To introduce ImageIO library #import <ImageIO/ImageIO.h> @implementation Uiimageview (Tool)// Methods for parsing GIF file data The parsed data is passed out-(void) Getgifimagewithurk: (nsurl *) URL returndata: (void (^) (nsarray<uiimage *> * Imagearray, Nsarray<nsnumber *>*timearray,cgfloat totaltime, Nsarray<nsnumber *>* widths,NSArray< NSNumber *>* Heights)) datablock{//through the URL of the file to read the GIF file as a picture data reference cgimagesourceref Source = Cgimagesourcecreatewithurl (
 cfurlref) URL, NULL);
 Gets the number of pictures in a gif file size_t count = cgimagesourcegetcount (source);
 Define a variable record GIF play round the time float alltime=0;
 Store all pictures nsmutablearray * Imagearray = [[Nsmutablearray alloc]init];
 Hold each frame play time nsmutablearray * Timearray = [[Nsmutablearray alloc]init];
 Store the width of each picture (generally in a GIF file, all picture dimensions will be the same) Nsmutablearray * Widtharray = [[Nsmutablearray alloc]init]; Store the height of each picture Nsmutablearray *Array = [[Nsmutablearray alloc]init];
  Traversal for (size_t i=0 i<count; i++) {cgimageref image = Cgimagesourcecreateimageatindex (source, I, NULL); [Imagearray addobject: (__bridge uiimage *)
  (image)];
  Cgimagerelease (image);
  Get picture information nsdictionary * info = (__bridge nsdictionary*) cgimagesourcecopypropertiesatindex (source, I, NULL);
  CGFloat width = [[Info objectforkey: (__bridge NSString *) kcgimagepropertypixelwidth] floatvalue];
  CGFloat height = [[Info objectforkey: (__bridge NSString *) kcgimagepropertypixelheight] floatvalue];
  [Widtharray Addobject:[nsnumber Numberwithfloat:width]];
  [Heightarray Addobject:[nsnumber Numberwithfloat:height]];
  Nsdictionary * Timedic = [info objectforkey: (__bridge NSString *) kcgimagepropertygifdictionary];
  CGFloat time = [[Timedic objectforkey: (__bridge NSString *) Kcgimagepropertygifdelaytime]floatvalue];
  Alltime+=time;
 [Timearray Addobject:[nsnumber Numberwithfloat:time]]; } datablock (Imagearray,timearray,alltime,widtharray,heighTarray);
 ///Add a method for Uiimageview to set the contents of the GIF:-(void) Yh_setimage: (Nsurl *) imageurl{__weak id __self = self; [Self Getgifimagewithurk:imageurl returndata:^ (nsarray<uiimage *> *imagearray, Nsarray<nsnumber *> * Timearray, CGFloat totaltime, Nsarray<nsnumber *> *widths, Nsarray<nsnumber *> *heights) {//Add frame animation CAKEYFR
  Ameanimation *animation = [cakeyframeanimation animationwithkeypath:@ "Contents"];
  Nsmutablearray * times = [[Nsmutablearray alloc]init];
  float currenttime = 0; Set time per frame for (int i=0; i<imagearray.count; i++) {[Times Addobject:[nsnumber numberwithfloat:currenttime/total
   TIME]];
  Currenttime+=[timearray[i] Floatvalue];
  } [animation setkeytimes:times];
  [Animation Setvalues:imagearray];
  [Animation Settimingfunction:[camediatimingfunction Functionwithname:kcamediatimingfunctionlinear]];
  Set Loop animation.repeatcount= maxfloat;
  Set Playback total time animation.duration = TotalTime; Layer layer Add [[(Uiimageview *) __self Layer]addanimaTion:animation forkey:@ "Gifanimation"];
}];

 } @end

Use in the place where the GIF is loaded
Import Uiimageview+tool

-(void) showgifimagewithimageview{

 uiimageview * ImageView = [[Uiimageview alloc]initwithframe:cgrectmake (112, 342, 132, 102)];
 Nsurl * url = [[Nsurl alloc]initfileurlwithpath:[[nsbundle Mainbundle] pathforresource:@ "Earthgif.gif" OfType:nil]];
 [ImageView Yh_setimage:url];
 [Self.view Addsubview:imageview];

}

Third party:
1.YLGIFImage
GitHub Link: https://github.com/liyong03/YLGIFImage

#import "YLGIFImage.h"
#import "YLImageView.h"

-(void) showgifimagewithylimageview{
 ylimageview* ImageView = [[Ylimageview alloc] Initwithframe:cgrectmake (112, 342, 132, 102)];
 CGFloat CenterX = self.view.center.x;
 [ImageView Setcenter:cgpointmake (CenterX, 402)];
 [Self.view Addsubview:imageview];
 Imageview.image = [Ylgifimage imagenamed:@ "Earthgif.gif"];
}

2.FLAnimatedImage
GitHub Link:https://github.com/Flipboard/FLAnimatedImage

-(void) showgifimagewithflanimatedimage{
 //gif nsdata
 //gif path
 nsstring *pathforfile = [[NSBundle Mainbundle] Pathforresource: @ "earthgif" oftype:@ "gif"];
 Turn into NSData
 nsdata *dataofgif = [NSData datawithcontentsoffile:pathforfile];
 Initialize Flanimatedimage object
 flanimatedimage *image = [Flanimatedimage animatedimagewithgifdata:dataofgif];
 Initializes the Flanimatedimageview object
 flanimatedimageview *imageview = [[Flanimatedimageview alloc] init];
 Set gif picture
 imageview.animatedimage = image;
 Imageview.frame = CGRectMake (112, 342, 132, 102);
 [Self.view Addsubview:imageview];
}

The above is the entire content of this article, I hope to help you learn.