[iOS基础控件 - 6.10.7] UIWindow & 程序启动过程

1     // 手动创建UIWindow，并加到screen上
2     self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
3     self.window.backgroundColor = [UIColor whiteColor];
4     [self.window makeKeyAndVisible];

1     // 添加控制器
2     ViewController *controller = [[ViewController alloc] init];
3     [self.window addSubview:controller.view];

1     // 添加控制器
2     ViewController *controller = [[ViewController alloc] init];
3 //    [self.window addSubview:controller.view];
4     self.window.rootViewController = controller;

1 - (BOOL)prefersStatusBarHidden {
2     return NO;
3 }