Date picker + Segmented control + some labels

Answer 1

Those should not be labels, but buttons. You can customize the UIButton to look like what you have above, and supporting the color change is very easy.

Answer 2

[startButton addTarget: self action: @selector(stcolor:) forControlEvents: UIControlEventTouchUpInside];

[endButton addTarget: self action: @selector(edcolor:) forControlEvents: UIControlEventTouchUpInside];

-(id)stcolor{ startButton.backgroundColor=[UIColor whitecolor]; endbutton.backgroundColor=[UIColor lightGrayColor];

} -(id)edcolor{ startButton.backgroundColor=[UIColor whitecolor]; endbutton.backgroundColor=[UIColor lightGrayColor];

}