iphone - Convert Images to gif using ios

Question

I am trying to convert 10 UIImages in .gif format programatically using IOS Xcode 4.5 and save it in gallery, but am having no luck I even tried a question at stackoverflow Create and and export an animated gif via iOS? I am not getting the point what are the variables like __bridge id used and how can i assign these images to the method please help ....

Answer 1

instead of converting image in to Gif apple provide UIImageView.animationImages proparty that you can Animation Number of images one by one like gif. like Bellow code:-

UIImage *statusImage = [UIImage imageNamed:@"status1.png"];
    YourImageView = [[UIImageView alloc]
                                      initWithImage:statusImage];


    //Add more images which will be used for the animation
    YourImageView.animationImages = [NSArray arrayWithObjects:
                                         [UIImage imageNamed:@"status1.png"],
                                         [UIImage imageNamed:@"status2.png"],
                                         [UIImage imageNamed:@"status3.png"],
                                         [UIImage imageNamed:@"status4.png"],
                                         [UIImage imageNamed:@"status5.png"],
                                         [UIImage imageNamed:@"status6.png"],
                                         [UIImage imageNamed:@"status7.png"],
                                         [UIImage imageNamed:@"status8.png"],
                                         [UIImage imageNamed:@"status9.png"],
                                         nil];




         //setFrame of postion on imageView

          YourImageView.frame = CGRectMake(
                                     self.view.frame.size.width/2
                                     -statusImage.size.width/2, 
                                     self.view.frame.size.height/2
                                     -statusImage.size.height/2, 
                                     statusImage.size.width, 
                                     statusImage.size.height);


  YourImageView.center=CGPointMake(self.view.frame.size.width /2, (self.view.frame.size.height)/2);


      YourImageView.animationDuration = 1;
      [self.view addSubview:YourImageView];

Answer 2

First of all you should check for your problem in Apple Documentation. Everything is given there. What you need is to Research & Read.

You should try the ImageIO framework. It can convert .png files into CGImageRef objects and then export the CGImageRefs to .gif files.

To save Images to Photo Library :UIImageWriteToSavedPhotosAlbum(imageToSave, nil, nil, nil); Also Documented in UIKit.