Question

Having problem with my application, I seem to be new in ios. My project contains a rootViewAppDelegate,*rootViewController*,and cameraViewController.

My rootViewcontroller has a Menu type code implemented in it that when a button is pressed it goes to cameraViewController.My cameraViewController contains a UIImagepicker.

In following a tutorial in the net about UIImagePicker in IPAD, it says there that I should paste some part of the code in the delegate. So I pasted it in the rootViewAppDelegate. When I run the project. Nothing is displaying in the cameraViewController. Did I miss something wrong? Thanks for reply.

Answer 1

Not having all the details, what I think is happening is the following:

• The rootViewAppDelegate is not the delegate of your UIImagepicker – and you probably don’t want to set it to be one as it’s the “App’s” delegate
• So what you are seeing happening is that your UIImagePicker has no object to trigger a delegate on

What probably needs to be done is to use your cameraViewController as the UIImagePicker delegate – to do so you need to go into your: cameraViewController and set it as being a follower of the UIImagePickerDelegate protocol:

@interface cameraViewController : UIViewController <UIImagePickerControllerDelegate>

Then within your UIImagePicker you need to set the delegate to be the cameraViewController – you can do this in code if you have a source file for your UIImagePicker by saying something like:

[self setDelegate:myCameraViewController];

OR in InterfaceBuilder/Storyboard, you need to connect the delegate property of the UIImagePicker to the cameraViewController.

This will then know that the cameraViewController is the delegate of the UIPicker and trigger it appropriately.