xcode黑屏

[ymwjz]

xcode进行编程时可以运行。但加了语句后，运行也通过，模拟器会黑屏。

[AMinfo]

无码无真相噢，发码看看

[ymwjz]

#import <UIKit/UIKit.h>

int main(int argc, char *argv[])
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
int retVal = UIApplicationMain(argc, argv, nil, nil);
[pool release];
return retVal;
}


#import "bE1ViewController.h"
@implementation bE1ViewController
//@implementation buttonExampleViewController
@synthesize myLabel;
-(void) tapA:(id)sender {
myLabel.text = @"我按了 A 按钮";
}
-(void) tapB:(id)sender {
myLabel.text = @"我按了 B 按钮";
}
@end


//#import <UIKit/UIKit.h>
#import <UIKit/UIKit.h>

@interface bE1ViewController : UIViewController{
IBOutlet UILabel *myLabel; }
@property (retain, nonatomic) UILabel *myLabel;
-(IBAction) tapA:(id)sender;
-(IBAction) tapB:(id)sender;
@end

[昔_日_的_光]

不清楚你说的。uiwindow上加了view么。

[gaoxingstyle]

[Quote=引用 2 楼 的回复:]

#import <UIKit/UIKit.h>

int main(int argc, char *argv[])
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
int retVal = UIApplicationMain(argc, argv, nil, nil);
[pool r……
[/Quote]

这些代码倒是没错误。

[念茜]

如果你使用了xib，请检查你的AppDelegate.m
是否有指定首先显示的view：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
    // Override point for customization after application launch.
    self.viewController = [[[ViewController alloc] initWithNibName:@"ViewController" bundle:nil] autorelease];
    self.window.rootViewController = self.viewController;
    [self.window makeKeyAndVisible];
    return YES;
}

如果你使用storyboard，检查是否指定了入口viewcontroller，即 initial view controller

[ymwjz]

如何从头开始编这个程序，应该怎么编？
谢谢大家！

[ymwjz]

如何从头开始编这个程序，应该怎么编？
谢谢大家！

[ymwjz]

谢谢大家！
如何从头开始，怎么办？