辭退一個imagepickercontroller

我試圖駁回其上呈現如下辭退一個imagepickercontroller

[self.view.window.rootViewController presentViewController:imagePicker animated:YES completion:nil];

一個imagepickercontroller（相冊或攝像頭）通過調用：

 [self dismissViewControllerAnimated:YES completion:NULL];

我無法關閉imagepickercontroller。

任何機構都可以幫助我嗎？

來源

2014-05-19 Siddharthan Asokan

需要調用[** ** imagePicker dismissViewControllerAnimated：YES完成：無];在imagePickerController：didFinishPickingMediaWithInfo：或imagePickerControllerDidCancel :. – Jonathan

這將是很好，如果你可以發佈這個作爲答案 –

我用這個：

if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) 
    [self dismissViewControllerAnimated:YES completion:nil]; 
else 
    [popover dismissPopoverAnimated:YES];

不知道NULL，而不是零是否重要，但它應該是零。

拾取器呈現以下代碼：

- (void)getVideoFromDevice 
{ 
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) // for ipad only 
    { 
     UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init]; 
     imagePicker.delegate = self; 
     imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; 
     imagePicker.allowsEditing = NO; 
     imagePicker.videoQuality = UIImagePickerControllerQualityTypeLow; 
     imagePicker.mediaTypes = [NSArray arrayWithObjects:(NSString *)kUTTypeMovie, nil];; 
     popover = [[UIPopoverController alloc] initWithContentViewController:imagePicker]; 
     [popover presentPopoverFromBarButtonItem:[self.navigationItem.rightBarButtonItems objectAtIndex:0] permittedArrowDirections: UIPopoverArrowDirectionAny animated:YES]; 
    } 
    else // for iphone only - NOT TESTED 
    { 
     UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init]; 
     imagePicker.delegate = self; 
     imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; 
     [self presentViewController:imagePicker animated:YES completion:nil]; 
    } 
}

我沒有測試iPhone的代碼還沒有，但iPad的部分是否正常工作。

來源

2014-05-19 20:49:04 RegularExpression

嗨，謝謝，但有一件事，popover從哪裏來？ –

您需要關閉代表方法中的UIImagePickerViewController：imagePickerController: didFinishPickingMediaWithInfo:和imagePickerControllerDidCancel:。請務必將UIImagePickerViewController代表分配給代表UIImagePickerViewController的UIViewController。

實施例：

- (void)imagePickerControllerDidCancel:(UIImagePickerController *) picker 
{ 
    [picker dismissViewControllerAnimated:YES completion:nil]; 
} 

- (void) imagePickerController: (UIImagePickerController *) picker didFinishPickingMediaWithInfo: (NSDictionary *) info 
{ 
    [picker dismissViewControllerAnimated:YES completion:nil]; 
}

來源

2014-05-19 21:33:43 Jonathan

辭退一個imagepickercontroller

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