LyricView.java

public class LyricView extends View {
	private Lyric mLyric;
	private Sentence mSentence;

	public void update(long time) {
		mSentence = mLyric.getSentence(time);
		invalidate();
	}
	
	@Override
	protected void onDraw(Canvas canvas) {
		super.onDraw(canvas);
		Log.d(TAG, "in onDraw");
		if (mLyricLoaded) {
			drawFocusedLine(canvas);
			drawOtherLines(canvas);
		} else {
			drawErrorMessage(canvas);
		}
	}

	private void drawFocusedLine(Canvas canvas) {...}
	private void drawOtherLines(Canvas canvas) {...}
}