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iOS

Posted by agreatdaytocode
agreatdaytocode
24,757 Points

Resizing an Image task 2

Notice that an important line is missing from the block of code that creates a resized version of the image stored in the 'image' property. Fix it! Hint: You'll need to redraw the image in the new rectangle.

#import "LatergramViewController.h"

@implementation LatergramViewController

- (IBAction)upload {

 if (self.image != nil && [self.caption length] != 0) {
    CGSize newSize = CGSizeMake(320.0f, 480.0f);
    CGRect newRectangle = CGRectMake(0, 0, 320.0f, 480.0f);
    UIGraphicsBeginImageContext(newSize);
    }

   // Task 2: Line missing here! How do we draw the image in the resized context?

 [self.image drawInRect:newRectangle];

    UIImage *resizedImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    // Rest of code omitted for brevity!
}

@end
agreatdaytocode
agreatdaytocode
24,757 Points

I added [self.image drawInRect:newRectangle]; However its not working. Can someone point me in the right direction.

12 Answers

agreatdaytocode
agreatdaytocode
24,757 Points 
#import "JonyIveViewController.h"

@implementation JonyIveViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Rest of viewDidLoad code omitted
}


- (IBAction)redesignIOS:(id)sender {

    // Magic redesign code omitted

    NSLog(@"True simplicity is...where you go, Yeah, well, of course.");
}

@end

This should work

Colin Roth
Colin Roth
15,062 Points
Colin Roth
Colin Roth
15,062 Points

Yo almost there. Its the right code, but you have a syntax error . Just put a single pair of {} around the entire block and that should fix your problem.

agreatdaytocode
agreatdaytocode
24,757 Points

Bummer! Compilation Error! Check your syntax: make sure you refer to properties using the 'self' keyword! That is what I am currently getting.

Colin Roth
Colin Roth
15,062 Points

Yeah yeah it has nothing to do with your actual lines of code, just review where you put your curly braces ({ }) and you will get the answer, I promise you.

(i know you want me to just tell you exactly whats wrong but when you see it you'll face palm. Just look through your code again)

agreatdaytocode
agreatdaytocode
24,757 Points
agreatdaytocode
agreatdaytocode
24,757 Points

*Face Palm Thanks for the help.

How I felt 30 mins ago..... SMASH!

How I feel now.... SMASH!

Meek D
Meek D
3,457 Points
Meek D
Meek D
3,457 Points

no problem man

agreatdaytocode
agreatdaytocode
24,757 Points

Nice work Meek.

james white
james white
78,399 Points
james white
james white
78,399 Points

This is totally bogus!

Notice that the curly brace is ABOVE the line that says:

// Task 2: Line missing here! How do we draw the image in the resized context?

...in the (starting) skeleton code as given:

    UIGraphicsBeginImageContext(newSize);
    }  //<======= the 'out of place' curly brace

   // Task 2: Line missing here! How do we draw the image in the resized context?

When the new line of code is added,

it needs be situated such that

the curly brace is BELOW the added line:

    UIGraphicsBeginImageContext(newSize);
    //new line of code added...
    [self.image drawInRect:newRectangle];
    }

   // Task 2: Line missing here! How do we draw the image in the resized context?

Or...in in other words...if the Treehouse people were actually "playing fair" the skeleton code comment line:

// Task 2: Line missing here! How do we draw the image in the resized context?

...should have been above the curly brace at the start of that part of the challenge to avoid any confusion [IMHO]

Thanks, though, to Meek D for the clue

(even though it would have been clearer

if he learned to use the forum's markup tick marks).

Colin Roth
Colin Roth
15,062 Points
Colin Roth
Colin Roth
15,062 Points

On the topic of face palming............ Have you completed the "Getting Up To Speed" code challenge by chance? I am right now the driver of the struggle bus and just cant read this code

agreatdaytocode
agreatdaytocode
24,757 Points
agreatdaytocode
agreatdaytocode
24,757 Points

I don't think I have do you have a link to the quiz?

Colin Roth
Colin Roth
15,062 Points
Colin Roth
Colin Roth
15,062 Points

Yeah, I finished everything else with the project except this. Don't judge, I know it's super simple haha

http://teamtreehouse.com/library/getting-up-to-speed

Colin Roth
Colin Roth
15,062 Points
Colin Roth
Colin Roth
15,062 Points

Owe you big time!

agreatdaytocode
agreatdaytocode
24,757 Points

Cheers, no worries!

Anand Shetler
Anand Shetler
12,879 Points
Anand Shetler
Anand Shetler
12,879 Points

i still dont get it...

Colin Roth
Colin Roth
15,062 Points

Hey, which part are you confused about?

Anand Shetler
Anand Shetler
12,879 Points
Anand Shetler
Anand Shetler
12,879 Points

I also got this part : [self.image drawInRect:newRectangle]; But I don't know where to put the curly braces. sigh Javascript is so much easier than this

Meek D
Meek D
3,457 Points

i fixed it just

  • (IBAction)upload { if (self.image != nil && [self.caption length] != 0) { CGSize newSize = CGSizeMake(320.0f, 480.0f); CGRect newRectangle = CGRectMake(0, 0, 320.0f, 480.0f); UIGraphicsBeginImageContext(newSize); [self.image drawInRect:newRectangle]; UIImage *resizedImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); // return resizedImage; }

}

Anand Shetler
Anand Shetler
12,879 Points

thanks!

Christian Deciga
Christian Deciga
5,600 Points
Christian Deciga
Christian Deciga
5,600 Points

thank you Meek D! that really helped a lot