CODEWITHSUNDEEP
androidarraysstringarraylist
user1742596
user1742596

Reputation: 31

Add multiple Strings to a ListArray?

I have about 70 strings that I would like to add to a String Array.. Then print the String array in a TextView..

I have did some homework and I think I actually want to add the strings to a ListArray.

The Strings are located in the string.xml file.

TextView tvHerb = (TextView) findViewById(R.id.tvHerb);

    ArrayList<String> herbList = new ArrayList<String>();
    herbList.add(R.string.angelica, null);
    herbList.add(R.string.anise_seed, null);

    tvHerb.setText(herbList.toString());

I get a runtime error as soon as the layout is displayed on emulator.

I am LOST!!! I am also new to android programming so any help at all would be appreciated.

Upvotes: 2

Views: 253

Answers (3)

Rapha&#235;l Titol
Rapha&#235;l Titol

Reputation: 722

First I agree with agreco's answer about the number of attributes.

But also, if you are adding in your arraylist only Strings which come from you string ressource, I think it would be better to define a array of String directly in your strings.xml file.

However, I guess your problem comes from the fact that you apply toString to an ArrayList. toString is a generic method, and I'm not sure of its behavior with an array. toString does not necessarily fits your exact needs, and most of the time it does not.

I think you should better do something like : 

String stringToInsert =herbList.get(0);

    for (int i=1;i<herbList.size();i++)
    {
        stringToInsert+="ANY_SEPARATOR_YOU_WANT" + herbList.get(i);
    }

    tvHerb.setText(stringToInsert);

Upvotes: 0

And_dev
And_dev

Reputation: 179

Instead of having each string with id in string.xml file. you can declare a string array in string.xml 

   `<resources>
   <string-array name="sample">
   <item>YourValue1</item>
   <item>YourValue2</item>
    .....
   <item>YourValue70</item>
   </string-array>
   </resources>`

Then in your activity

   `String[] sample = getResources().getStringArray(R.array.sample);
   ArrayList<String> arrayList = new ArrayList<String>(sample.length);
   arrayList = Arrays.asList(sample);`

Upvotes: 0

Austin Greco
Austin Greco

Reputation: 33544

You need to use context.getString(id) to get the string resources.

Also is there some reason you're using the 2 argument version of .add?

You probably want herbList.add( context.getString( R.string.angelica ) );

Upvotes: 1

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