In my values.xml file, I have an array, like this;
<string-array name="animals-array">
<item>Cow</item>
<item>Pig</item>
<item>Bird</item>
<item>Sheep</item>
</string-array>
In my app, I want to get one of these values at random, but I am unsure how to do this. I have looked at
Help in getting String Array from arrays.xml file
and this
Retrieving a random item from ArrayList
But how do I retrieve a random item from my list that is defined in the values.xml file?
String[] array = context.getResources().getStringArray(R.array.animals_array);
String randomStr = array[new Random().nextInt(array.length)];
Hope this helps.
String randomStr = array[new Random().nextInt(array.length)]; be String randomStr = array[new Random().nextInt(array.length - 1)]; to avoid ArrayIndexOutOfBoundsException?
repeat...could you please help...? Thanks...!
array.length - 1 is wrong. array.length is true1. Retrive the Complete String Array from the xml and put it inside an ArrayList using
Arrays.asList() method.
2. Use Math.random()*mArr.size() function to get a random number. (mArr is the ArrayList)
3. Then use this random number to get an animal from the ArrayList like
`myArr.get(myrand);`
4. The reason i suggested the use of ArrayList (ie Collection framework) cause that will give you more flexibility.
String[] myArrayOfStrings = {"one", "two", "three" }
Random r = new Random();
String myRandString = r.nextInt(myArrayOfStrings.length );
