Pass ArrayList of integer array via bundle

Sending activity:

final Intent intent = new Intent(this, SecondActivity.class);
Bundle extraBundle = new Bundle();

extraBundle.putIntegerArrayList("arraylist", [put array list here]);

intent.putExtras(extraBundle);
intent.setComponent(new ComponentName("com.myapp", "com.myapp.SecondActivity"));

startActivity(intent);

Receiving activity's onCreate():

final Intent intent = getIntent();
final Bundle extraBundle = intent.getExtras();

ArrayList<Integer> myIntegerArrayList = extraBundle.getIntegerArrayList("arraylist");

You can change "arraylist" to what you want in the setter and getter method calls, they just need to be the same.

I used Gson, convert to JSONArray and send via Bundle. But it may affects performance.

In First Activity

Intent activity = new Intent(MyActivity.this,NextActivity.class);
activity.putExtra("myArrayList", new Gson().toJson(myArrayList);
startActivity(activity);

In other activity..

Sting myArrayList;
Bundle extras = getIntent().getExtras();
if (extras != null) {
   myArrayList= extras.getString("myArrayList");

   Type listOfInteger = new TypeToken<List<Integer>>(){}.getType();
   String s = new Gson().toJson(myArrayList, listOfInteger);
   List<Integer> myList = new Gson().fromJson(s, listOfInteger); 
}

int[] intarray = new int[] {4,5,6,7,8};

Bundle bundle = new Bundle();
bundle.putIntArray("integerarray", intarray);

Or an ArrayList with int arrays?

For that i think you should use Parcable. Or you could try to send the individual intArrays via the bundle and put them together in the receiving Activity. Like this:

int[] intarray1 = new int[] {4,5,6,7,8};
int[] intarray2 = new int[] {4,5,6,7,8};
int[] intarray3 = new int[] {4,5,6,7,8};

Bundle bundle = new Bundle();
bundle.putIntArray("INT_ARRAY1", intarray1);
bundle.putIntArray("INT_ARRAY2", intarray2);
bundle.putIntArray("INT_ARRAY3", intarray3);

Intent intent = new Intent(this,NewActivity.class)
intent.putExtras(bundle);
startActivity(intent)

Then in NewActivity.java you should create an array and get the bundle and fill the array with the received arrays.

you can pass the Array List of integers by using the method putIntegerArrayList

Here is the code snippet

 ArrayList<Integer> values=new ArrayList<>();
            values.add(1);
            values.add(60);
            values.add(75);
            values.add(120);
 Bundle extras = new Bundle();
 extras.putIntegerArrayList(EXTRA_KEY,values);