Question

我有4个UIButtons和4个UIImgeViews，每个按钮应该使用UIImagePickerController更改其UIImageView的图像。按钮＃1应该更改imageview＃1，依此类推。一切都应该是不同的。它只使用第一个按钮和imageview工作正常，但我不知道如何将它应用于所有4个。

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

UIImage *image1 = [info objectForKey:UIImagePickerControllerOriginalImage];


NSData *data = UIImagePNGRepresentation(image1);
NSString *myGrabbedImage = @"myGrabbedImage.png";
NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentDirectory = [path objectAtIndex:0];
NSString *fullPathToFile = [documentDirectory stringByAppendingPathComponent:myGrabbedImage];

[data writeToFile:fullPathToFile atomically:YES];
[[self firstImageView]setImage:image1];


[self dismissViewControllerAnimated:YES completion:nil];

}

我知道这只会将图片设置为第一个imageView但是如何为所有4个图片设置？

Answer 1

按下按钮的代码可以留下一个值来说明正在处理的按钮：

- (void) buttonPressed:(id)sender {
      imageViewBeingEdited = sender.imageView;
      // display image picker here
}

然后

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
    imageViewBeingEdited.image = [info objectForKey:UIImagePickerControllerOriginalImage];
    ...
}

UIImagePickerController用于多个按钮

1 个答案: