Question

like said in the title I’d like to change a button’s backgroun (using setBackgroundResource() ), but when I do that, I can’t see the text I’m puting on it (with setText() ), I found similar subject, but only with xml anwser. I need to do this in code…

Thank’

Class Code:

public class CityButton extends Button {
    private double ratioX;
    private double ratioY;
    private City city;

public CityButton(Context context, City city, double ratioX, double ratioY) {
    super(context);

    this.city = city;

    Rect boundRect = this.getBackground().getBounds();
    this.setHeight(boundRect.height());
    this.setWidth(boundRect.height());

    this.ratioX = ratioX;
    this.ratioY = ratioY;
}

public void addReinforcements(int value) {
    city.addReinforcements(value);
    reinforcementView.setText("" + city.getReinforcements());
}

public void setOffset(int posX, int posY) {
    int offsetX = (int) (posX * this.ratioX) - 5;
    int offsetY = (int) (posY * this.ratioY) - 5;

    RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(this.getLayoutParams());
    params.setMargins(offsetX, offsetY, offsetX + this.getWidth(), offsetY + this.getHeight());
    this.setLayoutParams(params);
}

Answer 1

I think setBackgroundResource may have the side effect of losing your offset settings. Try to call setOffset each time after you change background:

public void setBackgroundResource(int resid, int posX, int posY) {
    super.setBackgroundResource(resid);
    setOffset(posX, posY);
}