Customizing Text in Android Edit Text

I am trying to create an EditText which allows users to specifically put in typef开发者_Python百科aces like bold, italic, underline to specific portions of the text. How should I actually have it coded? How can properly save the changes then? Will it be something like in html with the tags?

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Take a look at Spanned interface and android.text.style package.

This "Common Task" will be helpful too: Selecting, Highlighting, or Styling Portions of Text.