How to set image to UIImage

Question

How can I set image to UIImage object. For example:

UIImage *img = [[UIImage alloc] init];
[img setImage:[UIImage imageNamed:@\"anyImageName\"]]         


        

Answer 1

There is an error on this line:

[img setImage:[UIImage imageNamed@"anyImageName"]]; 

It should be:

[img setImage:[UIImage imageNamed:@"anyImageName"]]; 

Answer 2

UIImage *img = [UIImage imageNamed@"aImageName"];

Answer 3

Try this code to 100% work....

UIImageView * imageview = [[UIImageView alloc] initWithFrame:CGRectMake(20,100, 80, 80)];
imageview.image = [UIImage imageNamed:@"myimage.jpg"];
[self.view  addSubview:imageview];

Answer 4

Like vikingosgundo said, but keep in mind that if you use [UIImage imageNamed:image] then the image is cached and eats away memory. So unless you plan on using the same image in many places, you should load the image, with imageWithContentsOfFile: and imageWithData:

This will save you significant memory and speeds up your app.

Answer 5

You can set an Image in UIImage object eiter of the following way:

1. UIImage *imageObject = [UIImage imageNamed:@"imageFileName"]; but by initializing UIImage Object like this, the image is always stored in cache memory even you make it nil like imageObject=nil;

Its better to follow this:

1. NSString *imageFilePath = [[NSBundle mainBundle] pathForResource:@"imageFilename" ofType:@"imageFile_Extension"];

   UIImage *imageObject = [UIImage imageWithContentsOfFile:imageFilePath];
   

EXAMPLE: NSString *imageFilePath = [[NSBundle mainBundle] pathForResource:@"abc" ofType:@"png"];

UIImage *imageObject = [UIImage imageWithContentsOfFile:imageFilePath];

Answer 6

You can't alloc UIImage, this is impossible. Proper code with UIImageView allocate:

UIImageView *_image = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"something.png"]] ;

Draw image:

CGContextDrawImage(context, rect, _image.image.CGImage);