UISplitViewController

_tian_qian

于 2016-11-08 10:10:23 发布

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分类专栏： UI 文章标签： ipad splitView

本文链接：https://blog.youkuaiyun.com/weixin_35966617/article/details/53079435

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本文介绍如何使用UISplitViewController创建适用于iPad的应用程序布局。通过示例代码展示了初始化SplitViewController，设置其视图控制器及代理，并实现不同显示模式下导航栏按钮的动态更新。

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UISplitViewController只能用于iPad上

APPDelegate

(BOOL)application:(UIApplication )application didFinishLaunchingWithOptions:(NSDictionary )launchOptions {
// Override point for customization after application launch.

self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];

[self.window makeKeyAndVisible];

UISplitViewController *splitVC = [[UISplitViewController alloc] init];

TQTableViewController *tableViewVC = [[TQTableViewController alloc] initWithStyle:0];

UINavigationController *tableNav = [[UINavigationController alloc] initWithRootViewController:tableViewVC];

ViewController *vc = [[ViewController alloc] init];

UINavigationController *vcNav = [[UINavigationController alloc] initWithRootViewController:vc];

tableViewVC.delegate = vc;

splitVC.viewControllers = @[tableNav,vcNav];

splitVC.delegate = vc;

self.window.rootViewController = splitVC;
return YES;
}

//是否隐藏左边的菜单
//- (BOOL)splitViewController:(UISplitViewController )svc shouldHideViewController:(UIViewController )vc inOrientation:(UIInterfaceOrientation)orientation
//{
// return NO;
//}

ViewController

(void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.

//系统写好一个事件响应的对象以及事件响应的方法
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@”menu” style:0 target:self.splitViewController.displayModeButtonItem.target action:self.splitViewController.displayModeButtonItem.action];

self.webView = [[UIWebView alloc] initWithFrame:self.view.bounds];

[self.view addSubview:self.webView];
}

-(void)setWebViewContent:(NSString *)urlStr
{
[self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:urlStr]]];
}

//改变显示模式的时候会调用该代理方法
- (void)splitViewController:(UISplitViewController *)svc willChangeToDisplayMode:(UISplitViewControllerDisplayMode)displayMode
{
if(displayMode == UISplitViewControllerDisplayModeAllVisible)
{
self.navigationItem.leftBarButtonItem = nil;
}
else
{
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@”menu” style:0 target:self.splitViewController.displayModeButtonItem.target action:self.splitViewController.displayModeButtonItem.action];
}
}