how to show images at cell.imageview.image from NSArray? - iphone

Question

Image Array=[NSArray arrayWithObjects:[UIImage imageNamed:#"1 (1).gif"],
[UIImage imageNamed:#"1 (2).gif"],[UIImage imageNamed:#"1 (3).gif"],[UIImage imageNamed:#"1 (4).gif"],[UIImage imageNamed:#"1 (5).gif"],[UIImage imageNamed:#"1 (6).gif"],[UIImage imageNamed:#"1 (7).gif"],nil];
//here is another array of objects showing in table view
alphabetsArray =[[NSMutableArray alloc]initWithObjects:#"A",#"B",#"C",#"D",#"E",#"F",#"G",#"H",#"I",#"J",#"K",#"L",#"M",#"N",#"O",#"P",#"Q",#"R",#"S",#"T",#"U",#"V",#"W",#"X",#"Y",#"Z",nil];
//everything working fine until when i add this code,app crashes with SIGABRT
cell.imageView.image=[UIImage imageNamed:[imageArray objectAtIndex:indexPath.row]];
Actually i need to ask some more things:
Is there any problem if number of images in array isn't equal to number of object in tableview?
Is there any other way to add images if they are huge in number except of uiimage imageNamed:"whatever.jpeg"
What if add a folder and give its address or name and it picks up images by itself..
What is most reasonable method of adding images in project if they are 250 in number(i-e sqlite,coreData,hardcode in project as i did)?

Answer 1

First, there is issue with this line [UIImage imageNamed:[imageArray objectAtIndex:indexPath.row]].
The [imageArray objectAtIndex:indexPath.row] is returning UIImage object in your current implementation, and you are trying to get UIImage with name of UIImage object.
You should just return the UIImage object directly to the cell.imageView.image.
cell.imageView.image = [imageArray objectAtIndex:indexPath.row];
Second, I am not sure how many rows are there in the table, but the method objectAtIndex can throw exception if the index is more than the number of elements in the array, causing app crash.

Answer 2

1) There would be no problem with this, unless you want to have the same number. It won't throw an error, but your app logic will not work properly.
2) Not that i know of, It's easy to do this though, use an easy naming convention such as image01, That way you can just copy and paste the code and change the ending numbers of the image
3) Im not sure of what you are asking.
4) Typically you would just need to add the images to your project via drag-N'-drop or by picking the files. Core data and sqlite are for the actual app that you are developing, not to store images in Xcode.
As for the main question, You say you want to show the images from an NSArray, if thats the case, just get the index path of the tableview, and look up the corresponding image using objectAtIndex:
Hope that helps a bit :)

Answer 3

Actually i have figured something out , there is an easy way to do.
cell.imageView.image = [UIImage imageNamed:[NSString stringWithFormat:#"%#.gif", [TextShownInTableArray objectAtIndex:indexPath.row]]];
i have alphabetics in this array, and i wanted to use different images with each of the alphabet, so just added images in project with same name as alphabets had. it worked fine with this line of code. TextShownInTableArray is your array with text :)

Answer 4

Image Array=[NSArray alloc]initWithObjects:[UIImage imageNamed:#"8.gif"],
[UIImage imageNamed:#"2.gif"],[UIImage imageNamed:#"3.gif"],[UIImage imageNamed:#"6.gif"],[UIImage imageNamed:#"5.gif"],[UIImage imageNamed:#"4.gif"],[UIImage imageNamed:#"7.gif"],nil];
your array alloc and that array 'retain' this array and try this code .thanks
[imageArray retain];
only change in your code this line . and solve your problem
cell.imageView.image=[imageArray objectAtIndex:indexPath.row];
i hope this code useful for You . Check this

Answer 5

cell.imageView.frame = CGRectMake(5, 5, 50, 50);
NSString *imgstr = [[Arr objectAtIndex:indexPath.row] objectForKey:#"thumb"];
cell.imageView.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:imgstr]]];