ios - 未调用 UIImagePicker 委托(delegate)

Question

我正在使用 UIImage Picker，但未调用委托(delegate)。

- (IBAction)captureVideo:(id)sender {
    self.imgPicker = [[UIImagePickerController alloc] init];
    self.imgPicker.allowsImageEditing = YES;
    self.imgPicker.delegate = self;
    /* if we want from the library*/
    self.imgPicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    self.imgPicker.mediaTypes = [[NSArray alloc] initWithObjects: (NSString *) kUTTypeMovie, nil];

    [self performSelector:@selector(takePicture) withObject:self afterDelay:1.0];
// I added that after an answer I san on SO


}

-(void) takePicture
{
    [self presentModalViewController:self.imgPicker animated:YES];

}

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)img editingInfo:(NSDictionary *)info {
    NSLog(@"Video chosen");
}

我添加了延迟，正如我在 here 中看到的那样.

我在设备上运行。

Answer 1

首先，该方法在 iOS 3.0 中已弃用，请改用:

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

还要确保您的界面符合协议(protocol) <UIImagePickerDelegate> .