Initialising array passed from another activity

Question

I'm trying to pass a String array from one activity to another but when I try to read the array in the second activity, the values are null.

Here is how i'm passing the array from the first activity:

Bundle bundle = new Bundle();
bundle.putStringArray("Array", createArray(text));
Intent itemIntent = new Intent(this,Details.class); 
itemIntent.putExtra("passedArray", bundle);
startActivity(itemIntent);

createArray(text) is a method that returns an array.

Here's how i'm trying to read the array in the second activity:

Bundle extras = this.getIntent().getExtras();   
String[] array = extras.getStringArray("Array");

How do I initialise the array in the second activity with the corresponding array values that have been passed to it? If I try and read any of the values they have not been initialised and are null.

score 1 · Accepted Answer · answered Apr 30 '12 at 15:34

1

Don't use bundle try this and first calculate your array:

itemIntent.putExtra("passedArray", createArray(text));
startActivity(itemIntent);

And receive them as

 String[] array = this.getIntent().getStringArray("passedArray");

answered Apr 30 '12 at 15:34

Sunny

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Had to use `Bundle extras = this.getIntent().getExtras(); String[] array = extras.getStringArray("passedArray");` to receive the array but apart from that it worked. Thankyou! – user1362255 Apr 30 '12 at 16:04

dymmeh · Answer 2 · 2012-04-30T16:13:08.043

0

You are nesting the bundle containing your array within another extra. That means you'd have to get the "passedArray" extra (which is a bundle) and then get your "Array" from the bundle that you just extracted. Instead change your code to this

Intent itemIntent = new Intent(this,Details.class); 
itemIntent.putExtra("Array", createArray(text));
startActivity(itemIntent);

edited Apr 30 '12 at 16:13

answered Apr 30 '12 at 15:34

dymmeh

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If I use that I get the error message "The method putStringArray(String, String[]) is undefined for the type Intent" ? – user1362255 Apr 30 '12 at 15:59
Oops. I edited my answer to fix my error. It should just be putExtra – dymmeh Apr 30 '12 at 16:13

score 0 · Answer 3 · edited May 23 '17 at 12:11

0

I think you are messing around with bundle and extras. Look at this question. I think it can help you Sending arrays with Intent.putExtra

edited May 23 '17 at 12:11

Community

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answered Apr 30 '12 at 15:37

nax83

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Initialising array passed from another activity

3 Answers3