Question

我的cocos2d项目中有2个场景。在我的第一个场景中，我有一个按钮，弹出UIImagePicker控制器，允许我从相机中选择和成像。我通过将我的UIImage转换为NSData将图像存储到NSUserDefaults中。请参阅以下代码

- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
// Access the uncropped image from info dictionary
[myController dismissModalViewControllerAnimated:YES];
UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
CGRect myRect = CGRectMake(image.size.width/2-160, image.size.height/2-160, 320, 320);
UIImage *resultImage = [self cropUIImage:image atRect:myRect];

NSData *imageData;
imageData = [NSKeyedArchiver archivedDataWithRootObject:resultImage];

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:@"camera" forKey:@"pictureSource"];
[defaults removeObjectForKey:@"picId"];
[defaults setObject:imageData forKey:@"picId"];
[defaults synchronize];
[picker release];
//move to screen
[[CCDirector sharedDirector] replaceScene: [CCTransitionSlideInR transitionWithDuration:0.5f scene:[cameraImageScene node]]];
}

然后我将屏幕更换为相机图像屏幕，我在那里使用精灵显示图像。

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    NSData *imageData;

    imageData = [defaults objectForKey:@"picId"];
    UIImage *imageU = [NSKeyedUnarchiver unarchiveObjectWithData: imageData];

    CCSprite *image = [CCSprite spriteWithCGImage:[imageU CGImage] key:@"cam"];
    image.scale = 0.75f;
    [image setPosition:ccp(winSize.width/2-3,287)];
    [self addChild:image z:2];

在这个图层中，我有一个后退按钮，可以将用户带回第一个场景。当我第一次从画廊中选择图像时，一切正常。但当我触摸然后选择另一个图像时，旧的选择显示为精灵中的图像。

任何提示？

Cocos2d中的iPhone相机图像

0 个答案: