Reputation: 25778
Say, I have an object of UIColor, can I quickly print out some debug information of its property information?
I need to print properties like red, blue, green components.
Upvotes: 0
Views: 1474
Reputation: 47759
For many objects you can simply use NSLog:
NSLog(@"The object = %@", someObject);
"Under the covers" this invokes the description
method of "someObject", which for many objects (notably NSArrays and NSDictionaries) is quite descriptive, but for others, not so.
For your own classes you can override description
to produce an appropriate string:
- (NSString*)description {
return [NSString stringWithFormat:@"MyClass{X = %d, Y = %d}", self.X, self.Y);
}
Upvotes: 1
Reputation: 130222
If you just log a UIColor object like so:
UIColor *color = [UIColor redColor];
NSLog(@"%@",color);
It will output UIDeviceRGBColorSpace 1 0 0 1
which represents RGBA value of the color object. These numbers range from 0 to 1.
Upvotes: 2