Notes on simple ways to realize page jumps in iOS application development

As a new handwritten note, easy to remember:

From android to iOS, for the page jump, found a lot of information, now record 1 page jump method.

1. Use navigationController

2. Jump right in (I just found it on the Internet, it's not very familiar, I don't blame you)

1. Build an RootViewController at delegate.h

@property (strong, nonatomic) UIViewController *viewController;

@property (strong, nonatomic) UINavigationController *navController;
delegate.m code didFinishLaunchingWithOptions Write code in the function: 
RootViewController *rootView = [[RootViewController alloc] init];

   rootView.title = @"Root View";

    

   self.navController = [[UINavigationController alloc] init];

    

   [self.navController pushViewController:rootView animated:YES];

   [self.window addSubview:self.navController.view];

This code loads the first page, RootViewController.
Jump to another page (such as SubViewController) code:

SubViewController *subView = [[SubViewController alloc] init];

   [self.navigationController pushViewController:subView animated:YES];

   subView.title = @"Sub";

The advantage is that the back button is automatically generated.

2. Jump straight to nothing

Instead of doing anything else, create a new view object

SubViewController *subView = [[SubViewController alloc] initWithNibName:@"SubViewController" bundle:[NSBundle mainBundle]];

    [self presentModalViewController:subView animated:YES];

That's it.

iOS 6.0 doesn't even use this function anymore

[self presentModalViewController:subView animated:YES];

Can be replaced by

[self presentViewController:subView animated:YES completion:nil];

The transfer of data when a page jumps
For example, if you need to implement view1 to jump to view2, pass some data of view1 to view2

Ideas:

1. Customize one bean class user, and implement user as a member variable in view2.

2. When jumping view1, the data is encapsulated as user and assigned to view2.user

code

1. view2

.h declares member variables

@property (strong, nonatomic) User *user;

2. view1

View2 *view2 = [[View2  alloc] init];

    User *user = [[User alloc] init];

    user.name = @"kevin";

    view2.user = user;

    [self.navigationController pushViewController: view2 

animated:YES];

3. view2

Take to the variable

self.user.name