iPad开发中UISplitViewController和UIPopoverPresentationController的使用

小灰灰 2022-05-20 04:49 141阅读 0赞

对于 iPad 开发来说，因为屏幕大，为了用户操作的方便，所以通常使用 `UISplitViewController`来实现导航。  
同时也会使用`UIPopoverPresentationController`实现浮窗功能。

[源码地址][Link 1]

效果图  
![效果图][70]

代码示例：  
设置根视图控制器

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
        // Override point for customization after application launch.
    
        //
        SpliteViewController *splitViewController = [[SpliteViewController alloc] init];
        self.window.rootViewController = splitViewController;
        //
        self.window.backgroundColor = [UIColor whiteColor];
        [self.window makeKeyAndVisible];
    
        return YES;
    }

`SpliteViewController`视图控制器继承`UISplitViewController`，并设置为app的根视图控制器。

#import <UIKit/UIKit.h>
    
    @interface SpliteViewController : UISplitViewController
    
    @end

#import "SpliteViewController.h"
    #import "MainViewController.h"
    #import "BeiChiViewController.h"
    #import "CRVViewController.h"
    #import "XianDaiViewController.h"
    #import "LeiKeSaSiViewController.h"
    
    
    @interface SpliteViewController () <UISplitViewControllerDelegate>
    
    @end
    
    @implementation SpliteViewController
    
    - (void)viewDidLoad {
        [super viewDidLoad];
        // Do any additional setup after loading the view.
    
        [self setSpliteController];
    }
    
    - (void)didReceiveMemoryWarning {
        [super didReceiveMemoryWarning];
        // Dispose of any resources that can be recreated.
    }
    
    - (void)setSpliteController
    {
        //
        CGFloat originXY = 180.0f;
        //
        MainViewController *menuVC = [[MainViewController alloc] init];
        UINavigationController *menuNav = [[UINavigationController alloc] initWithRootViewController:menuVC];
        BeiChiViewController *beiChiVC = [[BeiChiViewController alloc] init];
        UINavigationController *BeiChiNav = [[UINavigationController alloc] initWithRootViewController:beiChiVC];
        CRVViewController *crvVC = [[CRVViewController alloc] init];
        UINavigationController *crvNav = [[UINavigationController alloc] initWithRootViewController:crvVC];
        XianDaiViewController *xianDaiVC = [[XianDaiViewController alloc] init];
        UINavigationController *xianDaiNav = [[UINavigationController alloc] initWithRootViewController:xianDaiVC];
        LeiKeSaSiViewController *leiKeSaSiVC = [[LeiKeSaSiViewController alloc] init];
        UINavigationController *leiKeSaSiNav = [[UINavigationController alloc] initWithRootViewController:leiKeSaSiVC];
        //
        self.delegate = self;
        self.minimumPrimaryColumnWidth = originXY;
        self.maximumPrimaryColumnWidth = originXY;
        self.view.backgroundColor = [UIColor orangeColor];
        /* UISplitViewControllerDisplayModeAutomatic, UISplitViewControllerDisplayModePrimaryHidden, UISplitViewControllerDisplayModeAllVisible, UISplitViewControllerDisplayModePrimaryOverlay, */
        self.splitViewController.preferredDisplayMode = UISplitViewControllerDisplayModeAllVisible;
        //
        SpliteViewController __weak *weakSelf = self;
        menuVC.itemClick = ^(NSInteger index) {
            UINavigationController *nextController = controllers[index + 1];
            [weakSelf showDetailViewController:nextController sender:nil];
        };
    }
    
    @end

`UIPopoverPresentationController`浮窗的使用

- (void)itemClick
    {
        // 1 设置内容控制器
        MenuViewController *controller = [[MenuViewController alloc] init];
        controller.preferredContentSize = CGSizeMake(200, 200);
        controller.modalPresentationStyle = UIModalPresentationPopover;
    
        // 2 出现
        // 2-1 出现在UIBarButtonItem上面的
        UIPopoverPresentationController *popController = [controller popoverPresentationController];
        popController.barButtonItem = self.navigationItem.rightBarButtonItem;
    
        // 3 显示
        [self presentViewController:controller animated:YES completion:nil];
    
        // 4
        controller.itemClick = ^(NSInteger index) {
    
            // 5 消失
            [self dismissViewControllerAnimated:YES completion:NULL];
    
            // 6
            MenuViewController *nextVC = [MenuViewController new];
            [self.navigationController pushViewController:nextVC animated:YES];
        };
    }

[Link 1]: https://gitee.com/potato512/DemoIPA
[70]: /images/20220520/5d0a5adf60aa454a9ca3ec9340b35115.png