Question

It is a real silly questions but I can’t get it to work. I’ve used the search option, but couldn’t not find my answer for android.

What I would like to do it the following:

In res/strings.xml i’ve got several strings

<string name="good0">blablabla</string>
<string name="good1">balablabla2</string>
etc

I want to show those strings randomly in a those when something happens:

Toast.makeText(this,R.string.good+(Math.random()*10), Toast.LENGTH_LONG).show();

But this doesn’t work.

Thanks a lot for your help!

Answer 1

Use a String Array.

In strings.xml:

<resources>
    <string-array name="messages">
        <item>blablabla</item>
        <item>blablabla</item>
    </string-array>
</resources>

Then, in code you will have something like:

String[] messages = getResources().getStringArray(R.array.messages);
Random r = new Random();
String message = messages[r.nextInt(messages.length)];
Toast.makeText(this, message, Toast.LENGTH_LONG).show();