Question

-(void)imagePickerController:(UIImagePickerController*)picker didFinishPickingMediaWithInfo:(NSDictionary*)info {


    [self dismissModalViewControllerAnimated:YES];

    UIImage *image = [info objectForKey: UIImagePickerControllerOriginalImage];

    if(imageView1.image == nil){
        imageView1.image = image;
    }
    else if(imageView2.image == nil){
        imageView2.image = image;
    }
    else if(imageView3.image == nil){
        imageView3.image = image;
    }

    //pickedImage = TRUE;
}

我有这个代码，它永远不会去第二个“if else”语句。虽然它将图像分配给imageView1，但下次imageView1.image仍然为null。我在这做错了什么？

提前致谢。

Answer 1

我现在有两个解决方案。

1.试试这个

UIImage *image = [info valueForKey:UIImagePickerControllerOriginalImage];

使用“ valueForKey ”代替 objectForKey

<强> 2 即可。在尝试对信息字典执行任何操作之前，必须先解除并释放UIImagePickerController。要非常明确：

这不起作用：

- (void)imagePickerController:(UIImagePickerController *)picker 
                      didFinishPickingMediaWithInfo:(NSDictionary *)info {    

  myUIImageView.image = [info objectForKey:UIImagePickerControllerOriginalImage];


  [picker dismissModalViewControllerAnimated:YES];
  [picker release];
}

这将起作用

- (void)imagePickerController:(UIImagePickerController *)picker 
                      didFinishPickingMediaWithInfo:(NSDictionary *)info {

  [picker dismissModalViewControllerAnimated:YES];
  [picker release];


  myUIImageView.image = [info objectForKey:UIImagePickerControllerOriginalImage];

        if(imageView1.image == nil){
            imageView1.image = image;
        }
        else if(imageView2.image == nil){
          imageView2.image = image;
        }
       else if(imageView3.image == nil){
        imageView3.image = image;
      }             
}

UIImage图像始终为零

1 个答案: