關閉UIImagePickerController

Question

我已經嘗試了解除UIImagePickerController的所有變化，但沒有運氣。 我究竟做錯了什么。

- (IBAction)choosePhoto
{
    self.picker = [[UIImagePickerController alloc] init];
    self.picker.delegate = self;
    self.picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    [self presentModalViewController:self.picker animated:YES];

}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)imagePicker
{
    NSLog(@"dismiss image picker");
    [self dismissModalViewControllerAnimated:NO];
    [[self.picker parentViewController] dismissModalViewControllerAnimated:NO];
    [self.presentedViewController dismissModalViewControllerAnimated:NO];
    [self.presentingViewController dismissModalViewControllerAnimated:NO];
     // And every other way i could think of
}

- (void)imagePickerController:(UIImagePickerController *)imagePicker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    .. same stuff here
}

我試圖從父，祖父母，navigationController和根控制器呈現選擇器，沒有任何作用。 我做什么我不能解雇ImagePickerController。

請注意每次都會調用log語句。

干杯

Answer 1

試試這一行。 它可能適合你。

[self.picker dismissModalViewControllerAnimated:NO];

對於iOS 6及更高版本，請使用此功能

[self.picker dismissViewControllerAnimated:NO completion:nil];

也可以使用此代碼顯示您的選擇器控制器

if ([self respondsToSelector:@selector(presentViewController:animated:completion:)]){
    [self presentViewController:self.picker animated:YES completion:nil];
} else {
    //To target iOS 5.0
    [self presentModalViewController:self.picker animated:YES];
}

Answer 2

你在運行iOS 6嗎？ 如果是這樣， presentModalViewController:已被棄用，可能會導致一些意外結果。 嘗試使用presentViewController:animated:completion:相反。

但從技術上講，這就是你應該做的所有事情：

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)imagePicker
{
   [imagePicker dismissViewControllerAnimated:NO completion:nil];//Or call YES if you want the nice dismissal animation
}

Answer 3

對於Swift使用此：

func imagePickerControllerDidCancel(picker: UIImagePickerController!) {
    picker.dismissViewControllerAnimated(true, completion: nil)
}

Answer 4

對於Swift 4：

func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
        picker.dismiss(animated: true, completion: nil)
}