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.

viv · Accepted Answer · 2010-12-13T13:10:05.510

80

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);

edited Dec 13 '10 at 13:10

answered Dec 13 '10 at 13:02

viv

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@viv thanx for the quick support, but can you please let me know about "key" ,is it a single value or an array ? pls – Paresh Mayani Dec 13 '10 at 13:04
it is just a name with which you want to catch your array in another activity...... ex: array1 or array2: so you will be catching it by this name only in other activity...... – viv Dec 13 '10 at 13:05
@viv ya i have done, what should be done to read bundle in Second activity ? – Paresh Mayani Dec 13 '10 at 13:08
2

this.getIntent().getExtras().getStringArray(key); – metter Dec 13 '10 at 13:09
@metter @viv thats really silly question by me , this is same way as we are sending and receiving single value,,,....by the way thanx a lot for quick, supportive and helpful answer – Paresh Mayani Dec 13 '10 at 13:13
To Bundle or not to Bundle, see here, http://stackoverflow.com/questions/15243798/advantages-of-using-bundle-instead-of-direct-intent-putextra-in-android – G O'Rilla Jul 20 '15 at 06:41
dont we have to add `startActivity(i);` – Rishav Jun 13 '17 at 18:48

score 5 · Answer 2 · answered Jun 27 '14 at 04:54

5

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");

answered Jun 27 '14 at 04:54

Illegal Argument

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Yes it's not an answer of the question exactly but yes we can use this alternate solution. BTW, question is almost 4 years old :-) – Paresh Mayani Jun 27 '14 at 05:00
@PareshMayani I know that it is old I need to pass string data across two activities that was dynamic so string array would be inefficient as we could not alter the size this was the solution to my question and wanted to share it. – Illegal Argument Jun 27 '14 at 05:08
@PareshMayani after four years did you come across any new solution? – Mohammed H Jan 20 '15 at 10:02
@HabeebPerwad check accepted and other answers! Solutions are already provided there. – Paresh Mayani Jan 20 '15 at 11:46
@PareshMayani I was looking for passing string array of string array (eg:- new String[] { new String[] {"a", "b", "c"}, new String[] {"d", "e", "f"}, new String[] {"g", "h", "i"}} ) – Mohammed H Jan 21 '15 at 05:14
1

@HabeebPerwad there is no convienence method for that right now have a look at Parceable in android – Illegal Argument Jan 21 '15 at 05:16
@IllegalArgument th@nks – Mohammed H Jan 21 '15 at 05:20

score 3 · Answer 3 · answered Dec 13 '10 at 13:12

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.

answered Dec 13 '10 at 13:12

ognian

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ya i was making silly mistake while asking a question regarding "key", by the way thanx for the support – Paresh Mayani Dec 13 '10 at 13:16

Passing string array between android activities

3 Answers3

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