Android - Highlight a Word In a TextView?

Question

I have a database search query which search in the database for a word entered by the user and return a Cursor.

In my ListActivity

Answer 1

Try this library Android TextHighlighter.

Implementations

TextView.setText() gets a parameter as Spannable not only CharacterSequence. SpannableString has a method setSpan() which allows applying styles.

See list of direct subclass form CharacterStyle https://developer.android.com/reference/android/text/style/CharacterStyle.html

• example of giving background color and foreground color for word "Hello" in "Hello, World"

Spannable spannable = new SpannableString("Hello, World");
// setting red foreground color
ForegroundSpan fgSpan = new ForegroundColorSpan(Color.red);
// setting blue background color
BackgroundSpan bgSpan = new BackgroundColorSPan(Color.blue);

// setSpan requires start and end index
// in our case, it's 0 and 5
// You can directly set fgSpan or bgSpan, however,
// to reuse defined CharacterStyle, use CharacterStyle.wrap()
spannable.setSpan(CharacterStyle.wrap(fgSpan), 0, 5, 0);
spannable.setSpan(CharacterStyle.wrap(bgSpan), 0, 5, 0);

// apply spannableString on textview
textView.setText(spannable);