Is it important to design iPhone App layouts flexible?

Question

I am wondering if I would run into troubles when setting the heights of my views in the neb with fixed values.

Example: The height of the Status Bar is known. It\'s

Answer 1

Aren't most of these size present in the Apple supplied file "Constants.h"? (I've just noticed that it is part of the UICatalog SDK example).

I think it is very likely that Apple will launch another device sometime which has a larger or smaller screen. So they should be used in conjunction with [UIScreen frame/bounds];

// these are the various screen placement constants used across all the UIViewControllers

// padding for margins
#define kLeftMargin             20.0
#define kTopMargin              20.0
#define kRightMargin            20.0
#define kBottomMargin           20.0
#define kTweenMargin            10.0

// control dimensions
#define kStdButtonWidth        106.0
#define kStdButtonHeight        40.0
#define kSegmentedControlHeight 40.0
#define kPageControlHeight      20.0
#define kPageControlWidth      160.0
#define kSliderHeight            7.0
#define kSwitchButtonWidth      94.0
#define kSwitchButtonHeight     27.0
#define kTextFieldHeight        30.0
#define kSearchBarHeight        40.0
#define kLabelHeight            20.0
#define kProgressIndicatorSize  40.0
#define kToolbarHeight          40.0
#define kUIProgressBarWidth    160.0
#define kUIProgressBarHeight    24.0

// specific font metrics used in our text fields and text views
#define kFontName               @"Arial"
#define kTextFieldFontSize      18.0
#define kTextViewFontSize       18.0

// UITableView row heights
#define kUIRowHeight            50.0
#define kUIRowLabelHeight       22.0

// table view cell content offsets

#define kCellLeftOffset          8.0
#define kCellTopOffset          12.0

Tony