Display UIViewController as Popup in iPhone

Question

Since there is no complete  definitive answer to this common recurring question  I ll ask and answer it here   Often we need to present a UIViewController such that it doesn t cover full screen  as in the picture below     Apple provides several similar UIViewController  such as UIAlertView  Twitter or Facebook share view controller  etc    How can we achieve this effect for a custom controller

User · Answer

You can do this to add any other subview to the view controller. First set the status bar to None for the ViewController which you want to add as subview so that you can resize to whatever you want. Then create a button in Present View controller and a method for button click. In the method:

- (IBAction)btnLogin:(id)sender {
    SubView *sub = [[SubView alloc] initWithNibName:@"SubView" bundle:nil];
    sub.view.frame = CGRectMake(20, 100, sub.view.frame.size.width, sub.view.frame.size.height);
    [self.view addSubview:sub.view];
}

Hope this helps, feel free to ask if any queries...

User · Answer

NOTE   This solution is broken in iOS 8  I will post new solution ASAP   I am going to answer here using storyboard but it is also possible without storyboard    Init  Create two UIViewController in storyboard    lets say FirstViewController which is normal and SecondViewController which will be the popup    Modal Segue  Put UIButton in FirstViewController and create a segue on this UIButton to SecondViewController as modal segue  Make Transparent  Now select UIView  UIView Which is created by default with UIViewController  of SecondViewController and change its background color to clear color  Make background Dim  Add an UIImageView in SecondViewController which covers whole screen and sets its image to some dimmed semi transparent image  You can get a sample from here   UIAlertView Background Image Display Design  Now add an UIView and make any kind of design you want to show  Here is a screenshot of my storyboard    Here I have add segue on login button which open SecondViewController as popup to ask username and password  Important  Now that main step  We want that SecondViewController doesn t hide FirstViewController completely  We have set clear color but this is not enough  By default it adds black behind model presentation so we have to add one line of code in viewDidLoad of FirstViewController  You can add it at another place also but it should run before segue    self setModalPresentationStyle UIModalPresentationCurrentContext   Dismiss  When to dismiss depends on your use case  This is a modal presentation so to dismiss we do what we do for modal presentation    self dismissViewControllerAnimated YES completion Nil     Thats all       Any kind of suggestion and comment are welcome   Demo   You can get demo source project from Here   Popup Demo  NEW   Someone have done very nice job on this concept   MZFormSheetController New   I found one more code to get this kind of function   KLCPopup       iOS 8 Update   I made this method to work with both iOS 7 and iOS 8         void setPresentationStyleForSelfController  UIViewController   selfController presentingController  UIViewController   presentingController       if  iOSVersion  gt   8 0                presentingController providesPresentationContextTransitionStyle   YES          presentingController definesPresentationContext   YES            presentingController setModalPresentationStyle UIModalPresentationOverCurrentContext             else                selfController setModalPresentationStyle UIModalPresentationCurrentContext            selfController navigationController setModalPresentationStyle UIModalPresentationCurrentContext               Can use this method inside prepareForSegue deligate like this  -  void prepareForSegue  UIStoryboardSegue   segue sender  id sender        PopUpViewController  popup   segue destinationViewController       self setPresentationStyleForSelfController self presentingController popup

User · Answer

Swift 4   To add an overlay  or the popup view You can also use the Container View with which you get a free View Controller   you get the Container View from the usual object palette library     Steps    Have a View  ViewForContainer in the pic  that holds this Container View  to dim it when the contents of Container View are displayed  Connect the outlet inside the first View Controller Hide this View when 1st VC loads Unhide  when Button is clicked  To dim this View when the Container View content is displayed  set the Views Background to Black and opacity to 30      You will get this effect when you click on the Button

User · Answer

Modal Popups in Interface Builder  Storyboards  Step 1 On the ViewController you want as your modal popup  make the background color of the root UIView clear   Tip  Do not use the root UIView as your popup  Add a new UIView that is smaller to be your popup  Step 2 Create a Segue to the ViewController that has your popup  Select  quot Present Modally quot    Two Methods To Create Popup From Here Method One - Using the Segue Select the Segue and change Presentation to  quot Over Current Context quot    Method Two - Using the View Controller Select the ViewController Scene that is your popup  In Attributes Inspector  under View Controller section  set Presentation to  quot Over Current Context quot    Either method will work  That should do it

User · Answer

Imao put UIImageView on background is not the best idea   In my case  i added on controller view other 2 views   First view has  UIColor clearColor  on background  second - color which u want to be transparent  grey in my case  Note that order is important Then for second view set alpha 0 5 alpha   0  lt  1  Added  this to lines in prepareForSegue  infoVC providesPresentationContextTransitionStyle   YES  infoVC definesPresentationContext   YES    And thats all

User · Answer

You can do this in Interface Builder    For the view you wish to present modally set its outermost view background to transparent Control   click and drag from the host view controller to the modal view controller Select present modally Click on the newly created segue and in the Attribute Inspector  on the right  set  Presentation  to  Over Current Context

User · Answer

You can use EzPopup  https   github com huynguyencong EzPopup   it is a Swift pod and very easy to use      init YourViewController let contentVC           Init popup view controller with content is your content view controller let popupVC   PopupViewController contentController  contentVC  popupWidth  100  popupHeight  200      show it by call present     animated   method from a current UIViewController present popupVC  animated  true

User · Answer

Feel free to use my form sheet controller MZFormSheetControllerfor iPhone  in example project there are many examples on how to present modal view controller which will not cover full window and has many presentation transition styles   You can also try newest version of MZFormSheetController which is called MZFormSheetPresentationController and have a lot of more features

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