FIT5140-Demo-Code

Demo code for FIT5140 thursday morning class

Week 3 - Delegate Protocol (Sending data back)

Step 1: Create the Protocol that the viewcontroller needs to conform to.
Step 2: Make the viewcontroller receiving the data, conform to the Protocol and implment the methods
Step 3: Create a weak var in the viewcontroller of type protocol_name that will send the data back so that it can use the delegate method. Call the delegate method when it needs to send the data back.
Step 4: In the receiving viewcontroller, before making the segue, make sure it is initalizing the delegate with itself

Note: If the code is not working as expected put break points and check the references and function calls.

Step 1: Create add a new model file to your project (Make sure you are adding to the correct directory and group)
Step 2: Add your entities and declare the attributes (Make sure to set the CodeGen as Manual/None)
Step 3: Set relationships between your entities if any
Step 4: With the model file selected, click on editor and create the NSManagedObject Subclass
Step 5: Initialize a persistentContainer that can be accessed throughout your application.(PersistentContainer name should match the model file name)
Step 6: Use the containers view context to access the CoreData(SQLite by default)
Step 7: When the user is not using the app, save all the changes.