本文介绍了我的程序成功，但是显示黑屏的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
#import <UIKit/UIKit.h>
@interface UntitledAppDelegate : NSObject <UIApplicationDelegate> {
UIWindow *window;
@property (nonatomic, retain) UIWindow *window;
@end
#import "UntitledAppDelegate.h"
@implementation UntitledAppDelegate
@synthesize window;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
UIButton *playButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
playButton.frame = CGRectMake(110.0, 360.0, 100.0, 30.0);
[playButton setTitle:@"Play" forState:UIControlStateNormal] ;
playButton.backgroundColor = [UIColor clearColor];
[playButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal ];
UIImage *buttonImageNormal = [UIImage imageNamed:@"star.gif"];
UIImage *strechableButtonImageNormal = [buttonImageNormal stretchableImageWithLeftCapWidth:12 topCapHeight:0];
[playButton setBackgroundImage:strechableButtonImageNormal forState:UIControlStateNormal];
UIImage *buttonImagePressed = [UIImage imageNamed:@"Crown.png"];
UIImage *strechableButtonImagePressed = [buttonImagePressed stretchableImageWithLeftCapWidth:12 topCapHeight:0];
[playButton setBackgroundImage:strechableButtonImagePressed forState:UIControlStateHighlighted];
[playButton addTarget:self action:@selector(playAction:) forControlEvents:UIControlEventTouchUpInside];
[self .window addSubview:playButton];
return YES;
推荐答案
像这样创建窗口的IBOutlet-> IBOutlet UIWindow * window;然后打开MainWindow.xib并将此窗口iboutlet连接到UntitledAppDelegate.
create IBOutlet of the window like this --> IBOutlet UIWindow *window;then open MainWindow.xib and connect this window iboutlet to the UntitledAppDelegate.
这篇关于我的程序成功，但是显示黑屏的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！