UIView 未显示在我的基于窗口的模板上?我正在为此创建一个应用程序,它使用基于窗口的模板和视图控制器并检查放置标签,但在执行后它看起来像干净的白色窗口。
在委托头文件中我这样做
#import "First_View.h"
@class First_View;
@property (nonatomic, retain) First_View *viewcontroller;
And in delegate.m
@synthesize viewcontroller=_viewcontroller;
//in implementation
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
self.window.rootViewController = self.viewcontroller; /*/**main line code here**/*/
[self.window makeKeyAndVisible];
return YES;
}