小编use*_*561的帖子

我的GameKit框架有问题.在我的应用程序中,我想发送文本或图像.现在,当我发送图像时UIImagePicker,它运行良好.当我发送文本时,UIAlertView对于没有图像的图像,它不会显示相同的内容.这是.h:

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

@interface ViewController : UIViewController <GKPeerPickerControllerDelegate, GKSessionDelegate, UIActionSheetDelegate, UINavigationControllerDelegate, UIImagePickerControllerDelegate> {
    GKSession *currentSession;
    IBOutlet UITextField *txtMessage;
    IBOutlet UIButton *connect;
    IBOutlet UIButton *disconnect;
    GKPeerPickerController *picker;
    UIImagePickerController *imgPicker;
    BOOL isText;
    UIImage *_image;
}
@property (nonatomic, retain) GKSession *currentSession;
@property (nonatomic, retain) UITextField *txtMessage;
@property (nonatomic, retain) UIButton *connect;
@property (nonatomic, retain) UIButton *disconnect;
-(IBAction) btnSend:(id) sender;
-(IBAction) btnConnect:(id) sender;
-(IBAction) btnDisconnect:(id) sender;
-(IBAction)chooseImageData:(id)sender;
@end

而且.m:

#import "ViewController.h"
#import …