iphone - 在启动画面上添加 UIActivityController

Question

我拿了一个 default.png 文件并将其作为我的初始屏幕，我让它休眠了几秒钟以使其可见。

但是我还想给它添加一个UIActivityController。因为我没有使用任何 ViewController。

我应该如何添加它？

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

_homeViewController = [[XTHomeViewController alloc]initWithNibName:kHOME_VIEW bundle:nil];
_navigate = [[UINavigationController alloc]initWithRootViewController:_homeViewController];

[self.window addSubview:_navigate.view];
[self.window makeKeyAndVisible];
[NSThread sleepForTimeInterval:0.75];
return YES;

这就是我所有的。

Answer 1

你可以这样添加Activityindicator

in DemoappeDelegate.h file

IBOutlet UiView *splashView;

in DemoappDelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

   UIActivityIndicatorView *spinningWheel = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(145.0, 290.0, 25.0, 25.0)];
   [spinningWheel startAnimating];
   spinningWheel.activityIndicatorViewStyle = UIActivityIndicatorViewStyleGray;
   [splashView addSubview:spinningWheel];
   [spinningWheel release];
}