SwiftUI is built around the concept of composition, which implies that we may create a variety of smaller views and then combine them into a larger one. As a result, we may save time by reusing views on a much larger scale. Learn how to build iPhone screens with switch, web, and scroll views.
. h file:
[1. Using Present model view Controller]
# import # import “SecondviewController. h” @ interface Switching view Controller: UIViewController { } -(IBAction) next clicked; @ end
.m file:
# import “Switching viewController .h” @ implementation Switchingview Controller -( IBAction) nextClicked { SecondviewController * second = [[ SecondviewController alloc] InitwithNibName: @ “SecondViewController” bundle :nil]; [ self PresentModelviewController : Second animated: YES]; }
Second view controller. M:
-(IBAction) backClicked { [ self dismissModel viewControllerAnimated : YES]; }
Second viewController:
# import @ interface Second view Controller : UIviewController { } -(IBAction) backclicked; @ end
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[ 2: by using adding subviews ]
[ self view add subview.v1]; [ self view removesubview:v1];
-(void) viewDidLoad { UIWebView *webView= [[UIWebView alloc] InitWithFrame : CGRectMake (0,44,320,436)]; NSURL *url = [ NSURL URLWithString :@ .http :// www.google.com”]; NSURLRequest * request = [NSURL Request RequestWithURL: url]; [web view loadRequest: request]; Webview: delegate = Self; [ self. View addSub view: web view]; [ web view release];
If (web view canGoBack) [webview goBack];
If ( web view . canGoForward) [ web view go forward];
If (webview. Loading) { // in loading. } [ super viewDidLoad]; }
-(void) webviewDidStartLoad : (UIwebview *) webview { NSLog (@ “ webviewDidstartLoad called”); } -(void) webviewDidFinishload: (UIwebview *) webview { NSLog (@ “ webviewFinishload called”); } -(void) webview : (UIwebview *) webview. DidfailloadwithError: (NSError *) error { NSLog (@ “did fail load with error called”); }
Scroll views are created as any other view is, either programmatically or in Interface Builder. Only a small amount of additional configuration is required to achieve basic scrolling capabilities.
1. Scroll for image
2. Scroll for views
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. h file:
# import @ interface ScrollView Viewcontroller : UIViewController { IBoutlet UIScrollview *Scroll; IBoutlet UIImageview * imageView; } @ end
.m file:
-(void) viewDidLoad { UIImage *img = [ UIImage Named. @ “photo on 2011-07-03 at 10.28.jpg”]; CGSize Size = img. Size; Img view. Frame = CGRectMake (0,0 size. Width, size. Height); Img view. Image = img; [ Scroll addSubview: imgview]; [ scroll setContentSize: img. Size]; }
Xib file:
-(void) viewDidLoad { UIScrollview *Scroll = [[ UIScroll view alloc ] InitWithFrame : [ UIScreenmainScreen]. application Frame]; UI image *img = [UI image image named:@ “1.jpg”]; CG size size = img .size; UI image view * img view =[[UI image view alloc] Init with frame : CG rect make (0,0 size width , size height)]; Img view image = img; [ Scroll addSub view: img view];
Scroll. ContentSize = imgview. frame. Size; [ Self . view addSub view :Scroll]; [ img view release]; [ Scroll release]; [ Super view did load]; } 2. Scroll for view:-
.h file:
# import @ interface Scrollview viewController: UIviewController { IBoutlet UIScroll view * Scroll; IBoutlet UIView * Signupview; }
.m file:
-(void) viewDidLoad { [scroll addSubview: Signupview]; Scroll. Contentsize = Signupview .frame .Size; }
.xib file:
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Ravindra Savaram is a Content Lead at Mindmajix.com. His passion lies in writing articles on the most popular IT platforms including Machine learning, DevOps, Data Science, Artificial Intelligence, RPA, Deep Learning, and so on. You can stay up to date on all these technologies by following him on LinkedIn and Twitter.
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