Question

Hello all i have the code below which produces four wheels each with the numbers 0-9. I think these numbers are being called for each wheel in the section of code after:

/**
* Initializes wheel
* @param id the wheel widget Id
*/

Is there a way i can change this so i can set certain WORDS instead of NUMBERS for each one of the four wheels like and array or string.

So i would have four arrays (strings) with different words for each wheel.

Thanks in advance.

public class PasswActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.passw_layout);
    initWheel(R.id.passw_1);
    initWheel(R.id.passw_2);
    initWheel(R.id.passw_3);
    initWheel(R.id.passw_4);

    Button mix = (Button)findViewById(R.id.btn_mix);
    mix.setOnClickListener(new OnClickListener() {
        public void onClick(View v) {
            mixWheel(R.id.passw_1);
            mixWheel(R.id.passw_2);
            mixWheel(R.id.passw_3);
            mixWheel(R.id.passw_4);
        }
    });


}

// Wheel scrolled flag
private boolean wheelScrolled = false;

// Wheel scrolled listener
OnWheelScrollListener scrolledListener = new OnWheelScrollListener() {
    public void onScrollingStarted(WheelView wheel) {
        wheelScrolled = true;
    }
    public void onScrollingFinished(WheelView wheel) {
        wheelScrolled = false;

    }
};

// Wheel changed listener
private OnWheelChangedListener changedListener = new OnWheelChangedListener() {
    public void onChanged(WheelView wheel, int oldValue, int newValue) {
        if (!wheelScrolled) {

        }
    }
};




/**
 * Initializes wheel
 * @param id the wheel widget Id
 */
private void initWheel(int id) {
    WheelView wheel = getWheel(id);
    wheel.setViewAdapter(new NumericWheelAdapter(this, 0, 9));
    wheel.setCurrentItem((int)(Math.random() * 10));

    wheel.addChangingListener(changedListener);
    wheel.addScrollingListener(scrolledListener);
    wheel.setCyclic(true);
    wheel.setInterpolator(new AnticipateOvershootInterpolator());
}

/**
 * Returns wheel by Id
 * @param id the wheel Id
 * @return the wheel with passed Id
 */
private WheelView getWheel(int id) {
    return (WheelView) findViewById(id);
}

/**
 * Tests entered PIN
 * @param v1
 * @param v2
 * @param v3
 * @param v4
 * @return true 
 */
private boolean testPin(int v1, int v2, int v3, int v4) {
    return testWheelValue(R.id.passw_1, v1) && testWheelValue(R.id.passw_2, v2) &&
        testWheelValue(R.id.passw_3, v3) && testWheelValue(R.id.passw_4, v4);
}

/**
 * Tests wheel value
 * @param id the wheel Id
 * @param value the value to test
 * @return true if wheel value is equal to passed value
 */
private boolean testWheelValue(int id, int value) {
    return getWheel(id).getCurrentItem() == value;
}

/**
 * Mixes wheel
 * @param id the wheel id
 */
private void mixWheel(int id) {
    WheelView wheel = getWheel(id);
    wheel.scroll(-25 + (int)(Math.random() * 50), 2000);
}

}

Answer 1

Just use an ArrayWheelAdapter<T> instead of the NumericWheelAdapter.

If you look closely at your own code, you will find a line where your adapter is created

new NumericWheelAdapter(this, 0, 9)

An adaptor is something the wheel UI can hook onto and grab data to display. This will create an adapter containing the numbers zero through nine. To create an adapter that displays the words “Abc”, “Foo”, and “Bar” use this.

new ArrayWheelAdapter<String>(this, new String[]{"Abc", "Foo", "Bar"})