IPhone IPad How to get screen width programmatically

Question

Hi I m wondering if there s a way to get the width programmatically    I m looking for something general enough to accomodate iphone 3gs  iphone 4  ipad  Also  the width should change based on if the device is portrait or landscape  for ipad    Anybody know how to do this   I ve been looking for a while    thanks

User · Answer

This can be done in in 3 lines of code      grab the window frame and adjust it for orientation UIView  rootView      UIApplication sharedApplication  keyWindow                                      rootViewController  view  CGRect originalFrame     UIScreen mainScreen  bounds   CGRect adjustedFrame    rootView convertRect originalFrame fromView nil

User · Answer

CGRect screen     UIScreen mainScreen  bounds   CGFloat width   CGRectGetWidth screen     Bonus height  CGFloat height   CGRectGetHeight screen

User · Answer

As of iOS 9 0 there s no way to get the orientation reliably  This is the code I used for an app I design for only portrait mode  so if the app is opened in landscape mode it will still be accurate   screenHeight     UIScreen mainScreen  bounds  size height  screenWidth     UIScreen mainScreen  bounds  size width  if  screenWidth  gt  screenHeight        float tempHeight   screenWidth      screenWidth   screenHeight      screenHeight   tempHeight

User · Answer

use   NSLog    f    UIScreen mainScreen  bounds  size width

User · Answer

Here is a Swift way to get screen sizes  this also takes current interface orientation into account   var screenWidth  CGFloat       if UIInterfaceOrientationIsPortrait screenOrientation            return UIScreen mainScreen   bounds size width       else           return UIScreen mainScreen   bounds size height         var screenHeight  CGFloat       if UIInterfaceOrientationIsPortrait screenOrientation            return UIScreen mainScreen   bounds size height       else           return UIScreen mainScreen   bounds size width         var screenOrientation  UIInterfaceOrientation       return UIApplication sharedApplication   statusBarOrientation     These are included as a standard function in   https   github com goktugyil EZSwiftExtensions

User · Answer

Take a look at UIScreen   eg   CGFloat width    UIScreen mainScreen  bounds size width    Take a look at the applicationFrame property if you don t want the status bar included  won t affect the width    UPDATE  It turns out UIScreen  -bounds or -applicationFrame  doesn t take into account the current interface orientation   A more correct approach would be to ask your UIView for its bounds -- assuming this UIView has been auto-rotated by it s View controller   -  void didRotateFromInterfaceOrientation  UIInterfaceOrientation fromInterfaceOrientation       CGFloat width   CGRectGetWidth self view bounds       If the view is not being auto-rotated by the View Controller then you will need to check the interface orientation to determine which part of the view bounds represents the  width  and the  height   Note that the frame property will give you the rect of the view in the UIWindow s coordinate space which  by default  won t be taking the interface orientation into account

User · Answer

Use this code it will help     UIScreen mainScreen  bounds  size height   UIScreen mainScreen  bounds  size width

[iphone] IPhone/IPad: How to get screen width programmatically?

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