How change UIactionsheet to Popover? - ios

Question

Use this code to open an actionsheet.
On iPhone works perfectly, but on iPad it crashes. I think it's because of arm64. Probably I have to transform Actionsheet into a popover.
How do I change this code?
- (void)pushedNewBtn
{
UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:#"Cancel" destructiveButtonTitle:nil otherButtonTitles:#"Camera", #"Photo Library", nil];
[sheet showInView:self.view.window];
}

Answer 1

For the correct use of UIAlertViews you need to use the delegate methods to respond to a button being pressed.
In your header file you need the following
#interface ViewController : UIViewController <UIAlertViewDelegate>
You have correctly set the delegate of your UIAlertView variable using the following line delegate:self.
Now, once you press a button in the UIAlertView, the delegate will call the following method
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
You can then respond to button presses in there with code that looks something similar to this
switch (buttonIndex) {
case 0:
//Cancel button code goes here if needed
break;
case 1:
//First 'other' button code goes here
break;
case 2:
//second 'other' button code goes here
break;
default:
break;
}
I hope this helps

Answer 2

this is the working result:
- (void)pushedNewBtn {
UIAlertView *sheet = [[UIAlertView alloc] initWithTitle:nil message:nil delegate:self cancelButtonTitle:#"Cancel" otherButtonTitles:#"Camera", #"Photo Library", nil];
[sheet show];
}
- (void)libraryButton {
UIImagePickerController *pickerLibrary = [[UIImagePickerController alloc] init];
pickerLibrary.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
pickerLibrary.delegate = self;
[self presentModalViewController:pickerLibrary animated:YES];
}
- (void)cameraButton {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:picker animated:YES completion:NULL];
}
#pragma mark- alertView delegate PICKER
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
switch (buttonIndex) {
case 0:
return;
break;
case 1:
[self cameraButton];
break;
case 2:
[self libraryButton];
break;
default:
break;
}
}
but now i have new problem,
I want to INSERT A New alertviev but does not work
- (void)pushedSaveBtn {
UIAlertView *sheet2 = [[UIAlertView alloc] initWithTitle:nil message:nil delegate:self cancelButtonTitle:#"Cancel" otherButtonTitles:#"Save", nil];
[sheet2 show];
}
- (void)savemeButton {
//codice da inserire
}
#pragma mark- alertView2 delegate SAVER
- (void)alertView2:(UIAlertView *)alertView2 clickedButtonAtIndex:(NSInteger)buttonIndex {
switch (buttonIndex) {
case 0:
return;
break;
case 1:
[self savemeButton];
break;
default:
break;
}
}