Attempt to programmatically re-position UIImageView

0
votes

**UPDATED QUESTION TO REFLECT ADDITION OF "INIT" IN UIIMAGEVIEW ALLOC*** I have "imageView" as a variable, declared already in my ".h" class. I am forced in a particular case to programmatically move "imageView" up by about 10 pixels and have experienced no luck. In looking at the current UIImageView ("imageView) position, I determined the X/Y/WIDTH/HEIGHT should be (78,214,170,120). Below is the code I am working with, which works but displays no UIImageView/UIImage:

imageView = [[UIImageView alloc]init];
UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:img2String]]];
imageView.frame = CGRectMake(78,214,170,120);     
imageView.image = image;

I'd appreciate any help.

2
xcode4uiimageview

2 Answers

0
votes

The question was edited by @greg23af , so I make some change.

imageView = [[UIImageView alloc] init];
NSURL *url = [NSURL URLWithString:img2String];
NSData *data = [NSData dataWithContentsOfURL:url];
UIImage *image = [UIImage imageWithData:data];
imageView.frame = CGRectMake(78,214,170,120);
imageView.backgroundColor = [UIColor redColor];
imageView.image = image;
  1. Separate the one line code of loading image into three or four lines to let debug easily.
  2. Set the UIImageView's background color to see if it is in the visible part. Be sure that it is added on the self.view or something else.

You forget to init it before.

-1
votes

You should initialize your image view first

imageView = [[UIImageView alloc] init];

like above.