TOPIC:

public class MyCustomView extends View implements
		PDFView.PDFViewListener {

	PDFView m_pdv;
	public boolean m_lock_resize = false;
	private int m_save_w = 0;
	private int m_save_h = 0;
	private int m_cur_page = 0;

	CustomPDFReaderListener listener;
	int gapSize;

	public MyCustomView(Context context) {
		super(context);
	}

	public MyCustomView(Context context, AttributeSet attrs) {
		super(context, attrs);
	}

	protected void onDraw(Canvas canvas) {
		if (m_pdv != null) {
			m_pdv.vDraw(canvas);
		}
	}

	public void readerGotoPage(int pageno) {
		m_pdv.vGotoPage(pageno);
		invalidate();
	}

	public void open(Document doc, CustomPDFReaderListener listener) {
		this.listener = listener;

		if (gapSize == 0) {
			gapSize = (int) getResources().getDimension(
					R.dimen.pdf_gap_detail_page_reader);
		}

		m_pdv = new PDFViewDual(getContext());
		m_pdv.vOpen(doc, gapSize, 0x00000000, this);
		invalidate();
	}

	@Override
	public boolean onTouchEvent(MotionEvent event) {
		if (m_pdv != null)
			return m_pdv.vTouchEvent(event);
		else
			return true;
	}

	protected void onSizeChanged(int w, int h, int oldw, int oldh) {
		m_save_w = w;
		m_save_h = h;
		if (m_pdv != null && !m_lock_resize)
			m_pdv.vResize(w, h);
	}

	public void close() {
		if (m_pdv != null) {
			m_pdv.vClose();
		}
		m_pdv = null;
	}

	public void OnPDFPageChanged(int pageno) {
		m_cur_page = pageno;
		if (listener != null) {
			listener.OnPDFPageChanged(pageno);
		}
	}

	public boolean OnPDFDoubleTapped(float x, float y) {
		return false;
	}

	public boolean OnPDFSingleTapped(float x, float y) {
		if (listener != null) {
			listener.OnPDFSingleTapped();
		}
		return false;
	}

	public void OnPDFLongPressed(float x, float y) {
	}

	public void OnPDFShowPressed(float x, float y) {
	}

	public void OnPDFSelectEnd() {
	}

	public void OnPDFFound(boolean found) {
	}

	public void OnPDFInvalidate(boolean post) {
		if (post)
			postInvalidate();
		else
			invalidate();
	}

	public void OnPDFPageDisplayed(Canvas canvas, PDFVPage vpage) {
	}

	@Override
	public void computeScroll() {
		if (m_pdv == null)
			return;
		m_pdv.vComputeScroll();
	}

	public void OnPDFSelecting(Canvas canvas, int[] rect1, int[] rect2) {
	}

}

def_view = 3

PDFViewDual view = new PDFViewDual(this.getContext());
        	boolean paras[] = new boolean[m_doc.GetPageCount()];
        	int cur = 0;
        	while( cur < paras.length )
        	{
        		paras[cur] = false;
        		cur++;
        	}
        	view.vSetLayoutPara(null, paras, m_rtol);
            m_view = view;