Passing string array between android activities

Question

I am having 2 String arrays inside First Activity - A , now i need to pass both the arrays to the second_activity - B, how do i do it ?

I know about the Intent kind of concept in Android and already passed just single variable value to another activity, but i haven't implement the concept of passing string arrays between activities, i have already surfed net for the same.

pls let me know about the possible solution.

Answer 1

Bundle b=new Bundle();
b.putStringArray(key, new String[]{value1, value2});
Intent i=new Intent(context, Class);
i.putExtras(b);

Hope this will help you.

In order to read:

Bundle b=this.getIntent().getExtras();
String[] array=b.getStringArray(key);

Answer 2

Not directly an answer to the question but you can also use .putStringArrayListExtra() in your bundle. It is more flexible than sending string array.

Bundle b=new Bundle();
b.putStringArrayListExtra("URL_ARRAY_LIST",
                        myStringArrayList);
Intent i=new Intent(context, Class);
i.putExtras(b);

Then you can get this arrayList as follows:

ArrayList<String> urls;
urls = getIntent().getStringArrayListExtra("URL_ARRAY_LIST");

Answer 3

Intents carry data into a key-value map, where 'key' is a String name identifier that you choose when storing the data into the Intent. When reading that data, you request the same 'key'. You can store various data types in a single Intent.

Answer 4

To send arrayList Data to another activity,

• create intent in first activity
• get data using bundle in second activity

(1) Code to create intent in first activity:

Intent intent = new Intent(firstActivityName.this, SecondActivityName.class);

intent.putExtra("Array", ArrayListName);

startActivity(intent);

(2) Code to get data using bundle in second activity:

Bundle bundle = getIntent().getExtras();

ArrayList<String> arrayList = new ArrayList<>();

arrayList = (ArrayList <String>) bundle.getSerializable("Array");