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Android Build an Interactive Story App (Retired) Finishing the User Interface Loading Additional Pages

Posted by yadin michaeli
yadin michaeli
Courses Plus Student 5,423 Points

Dont understand something ?!

Hello.

Can somebody explain me this line of code i dont actually got this please help!?

int nextPage = mCurrentPage.getChoice1().getNextPage();

1 Answer

Philip Gales
Philip Gales
15,193 Points 
int nextPage = mCurrentPage.getChoice1().getNextPage();

We have the class variable mCurrentPage. This is referring to the page being displayed. This code is expected to run on any page, so they are simply passing in a variable that changes from page to page, but always knows what page is being displayed. Page in this context is the text and button choices.

Next, the two getter methods. To refresh your java I recommend reading the staff's answer on this question. Basically, it is getting what is saved in the choice 1 button for the current page, and then getting what the next page for that choice is supposed to be.

To reiterate, the program you are using saves data and displays it based on the choice selected on the previous page. This code works by getting (reading) the data saved in the choice button 1 and then getting (reading) what the next page is supposed to be. They save all of this in the int nextPage and then use that int to look up the next page's text (story) and choices (buttons).

yadin michaeli
yadin michaeli
Courses Plus Student 5,423 Points

Thanks :)

Philip Gales
Philip Gales
15,193 Points

You are welcome!