[objective-c] pass data between two viewcontroller

goal:Pass navTitle value from ThirdViewController to FourViewController

Step1. we must create ThirdViewController and function prepareForSegue()
Step2. we must create FourViewController and NSString *navTitle
Step3. Create segue identifier= Four

Data from
https://github.com/jameskrauser/Segue

在ViewController 之間傳值

zhuming3834/Segue

Objective-C的页面传值

jameskrauser/Pass-Value-Example