iOS

 Problem: I want to create an alertviewcontroller that contains few actions.Also i want to set the text color as different. Then every action i had with both image and text with tint color. How can i achieve that? Solution:              let  alertController =  UIAlertController ( title : " AppTitle" ,                                                      message : " mess" ,                                                      preferredStyle : . alert )              let  acceptAction =  UIAlertAction ( title : " Yes" ,  style : . default ) { _  in                    //Put your actions here             }             acceptAction. setValue ( UIColor . blue ,  forKey :  "titleTextColor" )             alertController. addAction ( acceptAction)

 Problem: I had developed my app from ios 13 to till now version.In ios 17 it works fine.But in ios14 tableview shows some white spaces.How to avoid that? Solution: Because you added height for footer in tableview delegate method. You must have to add the  viewForFooterInSection as like below to avoid the white spaces      func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {         return 10.0     }          func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {         let view = UIView()         view.backgroundColor = .clear         return view              }

 Problem: I want to assign the section and row to the collectionview cell iOS swift Solution: private   struct   AssociatedKeys  {      static   var   section  =  "section"      static   var   row  =  "row" } extension   UICollectioViewCell  {           var   section  :  Int  {          get  {              guard   let  number = objc_getAssociatedObject( self ,     & AssociatedKeys . section )  as ?  Int   else  {                  return  - 1              }              return  number          }          set (value) {              objc_setAssociatedObject( self ,& AssociatedKeys . section ,Int(value),objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN_NONATOMIC)          }      }           var   row  :  Int  {          get  {              guard   let  number = objc_getAssociatedObject( self , & AssociatedKeys . row )  as ?  Int   else  {                  return  - 1              }              return  number          }          set (value) {              objc_

Problem:  I want to dismiss the view while tap on outside of the view after popover presented.How can i achieve that? Solution:      func   popoverPresentationControllerS houldDismissPopover ( _  popoverPresentationController:  UIPopoverPresentationControlle r ) ->  Bool  {          return   true     } Add the above function in your viewcontroller with popover delegate.

 Problem: DT_TOOLCHAIN_DIR cannot be used to evaluate LIBRARY_SEARCH_PATHS, use TOOLCHAIN_DIR instead i got the above error for my new cocopod update. Solution: I had modified my cocoapods as like below. target  'myapp'   do    # Comment the next line if you don't want to use dynamic frameworks   use_frameworks!   pod  'RxSwift'   pod  'RxCocoa'   pod  'RxDataSources'    # Pods for NuCal   target  ' myapp Tests'   do     inherit! :search_paths      # Pods for testing    end   target  ' myapp UITests'   do      # Pods for testing    end   post_install  do  |installer|     installer.pods_project. targets.each  do  |target|       target.build_configurations. each  do  |config|         config.build_settings[ ' IPHONEOS_DEPLOYMENT_TARGET' ] =  '13.0'        end      end      # fix xcode 15 DT_TOOLCHAIN_DIR - remove after fix oficially -  https://github.com/CocoaPods/ CocoaPods/issues/12065     installer.aggregate_targets. e

 Problem: cell hides while reuse Rx CollectionView Section Reload DataSource but height came as normal with empty space came. Solution:          var  mySection =  SectionOfMine ( model : . datamodel ,  items : [])          if   let  old =  model , let  oldList = old. modellist , oldList. count >0{             mySection. items . appen d (.  datamodel ( info :  old !))         }          sections . append (mySection) Because it had an issue that i had added nil value in model.So i checked and added that if any value exist.

 Problem: I want to create the textfield with MDCFilledTextField then want to fill the textfield bgcolor as white color.How to achieve that? Solution:      @IBOutlet   weak   var  my TextField :   MDCFilledTextField !          my TextField . setFilledBackgroundColor(.white, for: .normal)           my TextField . setFilledBackgroundColor(.white, for: .editing) The above solution will works for both normal and editing state. If you set only in normal state then while editing it will not works.

 Problem: I want to set the image on the right side of the button title.How to i achieve that? Solution: You can just set the image and title to the button then use the below code to reverse that.          btn . semanticContentAttrib ute  = . forceRightToLeft

 Problem: didselect viewcontroller not called swift for my tabbar view controller Solution: import  Foundation import  UIKit class   TabBarVC : UITabBarController  {           override   func   viewDidLoad () {     }      override   func   tabBar ( _  tabBar:  UITabBar ,  didSelect  item:  UITabBarItem ) {         if   let  vc =  self . viewControllers ?[ self . sel ectedIndex ]  as ? My VC  {            vc.refresh()         }     }    }