want to extrac image from string url - iphone

Question

I have the following image xml tag in which image path is stored
NSString *imgstring =[[blogEntries objectAtIndex: blogEntryIndex1] objectForKey: #"image"];
now i want to display this image in UITAble cell by following method
cell.textLabel.text=imgstring;
i am just getting path on the cell not actual image how should i display image

Answer 1

Of course you're getting text displayed - you're setting the text property of a UILabel to a string :) How would it know you wanted it to display an image?
You want something like
cell.imageView.image = [UIImage imageNamed:imgstring];
Have a look at the UITableViewCell documentation for more details
However, this will only work for images in your project - for external images you will have to do a little more work.
NSString *imgstring =[[blogEntries objectAtIndex: blogEntryIndex1] objectForKey: #"image"];
NSURL *url = [NSURL URLWithString:imgstring];
NSData *data = [NSData dataWithContentsOfURL:url];
UIImage *img = [[UIImage alloc] initWithData:data];
However, this will block your app until the image is loaded. Instead you might need to load the images is the background :
// Tell your code to load the image for a cell in the background
NSString *imgstring =[[blogEntries objectAtIndex: blogEntryIndex1] objectForKey: #"image"];
NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:cell, #"cell", imgstring, #"imgstring", nil];
[self performSelectorInBackground:#selector(loadImage:) withObject:dict];
- (void) loadImage:(id)object {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
// Get the data to pass in
NSDictionary *dict = (NSDictionary *)object;
// Get the cell and the image string
NSString *imgstring = [dict objectForKey:#"imgstring"];
UITableViewCell *cell = [dict objectForKey:#"cell"];
NSURL *url = [NSURL URLWithString:imgstring];
NSData *data = [NSData dataWithContentsOfURL:url];
UIImage *img = [[UIImage alloc] initWithData:data];
[pool release];
}
But you're going to run into threading problems if you're not careful with this :)
If you get any other problems, post another comment and I'll try to help!
PS I've not tested this code, just typed it straight in so there might be typos, sorry!