android - Is it possible to change the text color in a string to multiple colors in Java?

Question

What I mean is, is it possible to change the text "This text is blue" to the color blue in a single string? There must be a way...

<TextView
    android:gravity="left"
    android:padding="3dip"
    android:text="This text is white. This text is blue."
    android:textColor="#ffffff"
    android:textSize="22dp"/>

question from:https://stackoverflow.com/questions/8405661/is-it-possible-to-change-the-text-color-in-a-string-to-multiple-colors-in-java

Answer 1

Yes, its possible. For this you need to use SpannableString and ForegroundColorSpan.

This should look something like this:

SpannableStringBuilder builder = new SpannableStringBuilder();

String red = "this is red";
SpannableString redSpannable= new SpannableString(red);
redSpannable.setSpan(new ForegroundColorSpan(Color.RED), 0, red.length(), 0);
builder.append(redSpannable);

String white = "this is white";
SpannableString whiteSpannable= new SpannableString(white);
whiteSpannable.setSpan(new ForegroundColorSpan(Color.WHITE), 0, white.length(), 0);
builder.append(whiteSpannable);

String blue = "this is blue";
SpannableString blueSpannable = new SpannableString(blue);
blueSpannable.setSpan(new ForegroundColorSpan(Color.BLUE), 0, blue.length(), 0);
builder.append(blueSpannable);

mTextView.setText(builder, BufferType.SPANNABLE);