Randomly select a string from strings.xml in Android

Question

I need to randomly select a string defined within strings.xml file in android.

For example my strings.xml is :

<resources>
    <string name="str1">Content comes here1</string>
    <string name="str2">Content comes here2</string>
    <string name="str3">Content comes here3</string>
</resources>

Can I randomly select one of these strings in my Activity?

Answer 1

1. Create an array contains all of your resource names you want to select:

   String[] strs = new String[] {"str1", "str2", "str3"};

2. Get a random index:

   int randomIndex = new Random().nextInt(3);

3. Get your random string from resource:

   int resId = getResources().getIdentifier(strs[randomIndex ], "string", your_package_name);

   String randomString = getString(resId);

Answer 2

The best way is you declare you Strings as an Array, then get it like this:

String[] arrayOfStrings = context.getResources().getStringArray(R.array.your_string_array);
String randomString = arrayOfStrings[new Random().nextInt(arrayOfStrings.length)];

Then you can use it as you like.