使用UIImagePicker的多個UIImageViews

Question

我是使用UIImagePicker的新品牌，因此請在這裏與我聯繫。基本上，我有兩個UIButton定義訪問相機膠捲，一旦圖像被選中，圖像出現在我的UIImageView中。問題是當我從其中一個按鈕選擇圖像時，它出現在兩個UIImageView中，而不是一個。我基本上希望能夠通過兩個不同的按鈕來選擇兩張不同的照片。這裏是編碼：

-(IBAction)getPhoto1:(id)sender { 

    UIImagePickerController *picker = [[UIImagePickerController alloc] init]; 
    picker.delegate = self; 
    picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; 
    popover1 = [[UIPopoverController alloc] initWithContentViewController:picker]; 
    [popover1 presentPopoverFromRect:CGRectMake(0.0, 0.0, 400., 400.0) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES]; 

} 

-(IBAction)getPhoto2:(id)sender { 

    UIImagePickerController *picker = [[UIImagePickerController alloc] init]; 
    picker.delegate = self; 
    picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; 
    popover2 = [[UIPopoverController alloc] initWithContentViewController:picker]; 
    [popover2 presentPopoverFromRect:CGRectMake(0.0, 0.0, 400.0, 400.0) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES]; 

} 

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

    [picker dismissViewControllerAnimated:YES completion:nil]; 
    photo1.image = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; 
    photo2.image = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; 

} 

Answer 1

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info在您完成選擇圖像時被調用。

當您完成從UIImagePickerController選擇圖像時，您將UIImageView設置爲返回的圖像。

您需要區分哪個按鈕被按下 - 也許您可以使用int來確定哪個按鈕被按下。

例如，創建一個「廉政」叫buttonPressed當按下getPhoto1那會被設置爲1，或2當按下getPhoto2。然後，在didFinishPickingMediaWithInfo中，您可以有：

if (buttonPressed == 1) { 
    photo1.image = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; 
} else if (buttonPressed == 2) { 
    photo2.image = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; 
}