Can I select a color for each text line I append to a TextView?

Question

I have a TextView to be used as a bluetooth connection console. When I send a command, I want it to be written in a color (for example cyan), and the answers received in a different color (for example red).

Is it possible to do that, and if so, how?

I read it may be possible to do using HTML, but i'm not quite sure it is the best approach, or even how to do it.

Answer 1

Here's a little helper function based on C0deAttack's answer, that simplifies things

public static void appendColoredText(TextView tv, String text, int color) {
    int start = tv.getText().length();
    tv.append(text);
    int end = tv.getText().length();

    Spannable spannableText = (Spannable) tv.getText();
    spannableText.setSpan(new ForegroundColorSpan(color), start, end, 0);
}

Just replace any calls to

textView.append("Text")

with

appendColoredText(textView, "Text", Color.RED);