Android: how to group buttons?

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Android: how to group buttons?

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#1 by (1 votes)

2

Hello, in my application I have a textview with a question and then I have 3 buttons which are the possible options for the answer.

Can anyone tell me how I can group these 3 buttons to have a sort of Group Buttons, is there any way I can do this? (if they were radio buttons would use RadioGroup as container, but for normal buttons is there any way to do it?)

Thank you.

android

asked by anonymous 16.03.2015 / 17:43

1 answer

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score 1 · Accepted Answer

There is no component that does this for you similar to RadioGroup . You need to do this via code, something like:

...
firstButton.setOnClickListener(new View.OnClickListener() {
    @Override
        public void onClick(View v) {
            changeButtonState(true, false, false);
        }
});
secondButton.setOnClickListener(new View.OnClickListener() {
    @Override
        public void onClick(View v) {
            changeButtonState(false, true, false);
        }
});

thirdButton.setOnClickListener(new View.OnClickListener() {
    @Override
        public void onClick(View v) {
            changeButtonState(false, false, true);
        }
});
...

And to change the status of your Button :

private void changeButtonState(boolean first, boolean second, boolean third) {
    // caso você queira alterar a cor do botao selecionado
    if (first) {
        firstButton.setColorFilter(R.color.yourColor);
        secondButton.setColorFilter(R.color.yourColor2);
        thirdButton.setColorFilter(R.color.yourColor2);
    } else if (second) {
        firstButton.setColorFilter(R.color.yourColor2);
        secondButton.setColorFilter(R.color.yourColor);
        thirdButton.setColorFilter(R.color.yourColor2);
    } else {
        firstButton.setColorFilter(R.color.yourColor2);
        iBtnRatingMedium.setColorFilter(R.color.yourColor2);
        thirdButton.setColorFilter(R.color.yourColor);
    }

    firstButton.setSelected(first);
    secondButton.setSelected(second);
    thirdButton.setSelected(third);
}