android - How do I make a portion of a Checkbox's text clickable?

Question

I'm trying to create a link in my textbox's adjacent text. This link however is not a URL, but should act as a button so that I can perform a few tasks in the onItemClick event. I'm basically connecting this to a view that shows our End User License Agreement (hard coded).

How can I accomplish this?

Thanks in advance.

Answer 1

You may want only part of the text to be a clickable link, while the rest of the checkbox behaves as usual, i.e. you can click the other text to toggle the state.

You can set up your checkbox like so:

CheckBox checkBox = (CheckBox) findViewById(R.id.my_check_box);

ClickableSpan clickableSpan = new ClickableSpan() {
    @Override
    public void onClick(View widget) {
        // Prevent CheckBox state from being toggled when link is clicked
        widget.cancelPendingInputEvents();
        // Do action for link text...
    }
    @Override
    public void updateDrawState(TextPaint ds) {
        super.updateDrawState(ds);
        // Show links with underlines (optional)
        ds.setUnderlineText(true);
    }
};

SpannableString linkText = new SpannableString("Link text");
linkText.setSpan(clickableSpan, 0, linkText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
CharSequence cs = TextUtils.expandTemplate(
    "CheckBox text with link: ^1 , and after link", linkText);

checkBox.setText(cs);
// Finally, make links clickable
checkBox.setMovementMethod(LinkMovementMethod.getInstance());