title: Detect and change only "hello" text font-family from editText
body: <p>I have an editText box and when user writes "hello" I want only change "hello" font-family change to italic but others text font-family stay same only change "hello"</p>
  
  <pre><code>String detectText, text;
      detectText = "hello";
      text = title.getText().toString();
      detectText.
  </code></pre>
  
  <p>Could you please help me?</p>