Question

Ok right , i asked how to create a random number from 1-100 for android and i came to this

    TextView tv = new TextView(this);

    int random = (int)Math.ceil(Math.random()*101); 

    tv.setText("Your Number Is..."+ random );

What this does is create the default kinda “hello world” style text view and says “Your Number Is…. [Then Random Number]

My problem is that i cant change the layout of this text , because it is not defined in XML, if someone could tell me how to change the style , or like make the random number into a string so i could use it for any Textview layout that would be great ..

Thanks 🙂

Answer 1

You could also do something like this.

Define your string in strings.xml like:

<string name="your_number_is">Your number is <xliff:g id="number">%s</xliff:g>.</string>

Create a TextView in a layout xml:

<TextView android:id="@+id/your_number_is"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:text="@string/your_number_is"
    android:gravity="center"
    android:textSize="100dip"
    />

Then your code would look like:

TextView tv = (TextView) findViewById(R.id.your_number_is);
int random = (int)Math.ceil(Math.random()*101);
tv.setText(getString(R.string.your_number_is, random));

This will make it a lot easier when you later on would like to change your text or maybe localize your app.