Apps Launch New screen from a List (2 lists created via Spinner and arrays)

[Ali Pudsey]

Im learning to write/develop

I have a spinner as the first option. depending on what I select, one of the two lists appear.
If I select Option A on the spinner , and click the button, I get a LIST of items, i,e LIST-A (from an array)
If I select Option B on the spinner , and click the button, I get a 2nd LIST of items, i,e LIST-B (from an array)

How Can I click on one of the items in the list to open a second page ( say to describe/detail that item )
Say I want to click on APPLE , can I open a second page to have info on Apple
THE LIST WILL VARY on the SPINNER selection ....Position 1 could be APPLE or CABBAGE depending on the spinner selection

Can It be done ?

 

[wseng92]

What you need is OnItemSelectedListener()

spinnerA.setOnItemSelectedListener(new OnItemSelectedListener() {
   @Override
   public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) {
       // your code here
   }
   @Override
   public void onNothingSelected(AdapterView<?> parentView) {
       // your code here
   }
});

 

[Deleted User]

How Can I click on one of the items in the list to open a second page ( say to describe/detail that item )
Say I want to click on APPLE , can I open a second page to have info on Apple

There are a couple of ways you could do this:

• Use a Fragment to display the information: A Fragment is a type of view which can be used to create dynamic UI in the same Activity. https://developer.android.com/guide/components/fragments
• Start a new Activity. The item you're interested in (Apple) would be passed to the Activity in the Intent data. https://developer.android.com/training/basics/firstapp/starting-activity

 

[Ali Pudsey]

What you need is OnItemSelectedListener()

spinnerA.setOnItemSelectedListener(new OnItemSelectedListener() {
   @Override
   public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) {
       // your code here
   }

   @Override
   public void onNothingSelected(AdapterView<?> parentView) {
       // your code here
   }

});

I am a newbie. Still working my way around ... Are you saying this will on a simple textview list as in my intial screenshot?

 

[wseng92]

I am a newbie. Still working my way around ... Are you saying this will on a simple textview list as in my intial screenshot?

This will invoked when an item in the spinner has been selected.

Example you have a spinner item list for Fruit and Apple is in position 2. So your code mostly looked like this

spinnerA.setOnItemSelectedListener(new OnItemSelectedListener() {
   @Override
   public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) {
       // your code here
         if(spinnerFruitList.get(position) == 2){
               // Intent to Apple's page
        }
   }
   @Override
   public void onNothingSelected(AdapterView<?> parentView) {
       // your code here
   }
});

For the intent part, you may refer to the link which suggested by @LV426