UIWindow的使用,出錯(cuò)了。
都是按照老師的寫法寫的，UIWindow的使用。我這會(huì)出這個(gè)error，是怎么回事?。壳蠼獯?。。
無(wú)謂艱苦
2015-12-08
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2019-04-25
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
? ? // Override point for customization after application launch.
? ? _navigationController=[[UINavigationController alloc]initWithRootViewController:[[UIViewController alloc] init]];
? ? _window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
? ? _window.rootViewController = _navigationController;
? ? _window.backgroundColor = [UIColor redColor];
? ? [_window makeKeyAndVisible];
? ? return YES;
}
AppDelegate.h里加入
@property (strong,nonatomic)UINavigationController *navigationController;
2018-07-09
iOS 9以后要設(shè)置rootviewcontroller
2015-12-09
把你AppDelegate.m里寫的UIwindow部分代碼發(fā)來(lái)看看