[英]UIImagePickerController with UIImagePickerControllerSourceTypeCamera crash EXC_BAD_ACCESS in ios7
[英]UIImagePickerController with UIImagePickerControllerSourceTypeCamera crash
我有以下代碼:
if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{
[[[UIAlertView alloc] initWithTitle:@"Error" message:@"Camera is not available." delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil] show];
return;
}
UIImagePickerController * cameraUI = [[UIImagePickerController alloc] init];
[cameraUI setSourceType:UIImagePickerControllerSourceTypeCamera];
[cameraUI setMediaTypes:@[(NSString*)kUTTypeMovie]];
[cameraUI setAllowsEditing:NO];
[cameraUI setDelegate:self];
[navigationController presentViewController:cameraUI animated:YES completion:^{
NSLog(@"completed present camera controller");
}];
我得到這個崩潰:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[0]'
它發生在iOS7,iOS8,iPad和iPhone上。 如果我注釋“ present”方法,它不會崩潰,但是在逐行注釋每一行之后,我發現這是唯一使我的應用程序崩潰的方法(沒有它,“ present”方法有效,它將我帶到庫中) ):
[cameraUI setSourceType:UIImagePickerControllerSourceTypeCamera];
我真的沒有主意了。 誰能幫我嗎?
我發現了問題,也許有人有時會遇到相同的問題...我需要在我的應用程序內的所有按鈕上設置一個屬性,因此我創建了一個UIButton
類別,其中我覆蓋了-initWithFrame:
這導致崩潰。 顯然,相機UI需要在那里發生的事情不再發生。
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