아래 소스에서 바이오리듬값에 따라서 화면에 텍스트랑 이미지 출력하고싶은데 if문이나 그런걸 어디에 삽입하는 지 모르겟어요 ㅠㅠ 도와주세요..

package exam.Biorhythm;

import android.view.View;

import android.content.Context;

import android.util.AttributeSet;

import android.graphics.Canvas;

import android.graphics.Paint;

import android.graphics.Rect;

import android.util.Log;

import java.util.Date;

public class BioView extends View {

    /**상수*/

    private static final int mMaxDays = 30;

    private static final int mMaxType = 0;

    private static final long mTDV = (60*60*24*1000);

    private static final double mPI = 3.14159; 

    private static final double mBioValues[] = { 23.0, 28.0, 33.0 };

    private static final int mColors[] = { 0xff0000ff, 0xffff00ff, 0xff00ffff};

    /** 멤버변수 */

    private Paint mPaint;

    private Rect mRect;

    private double mStartDays;

    private Date mBirthDate, mTodayDate;

    public BioView(Context context, AttributeSet attrs) {

        super(context, attrs);

        mRect = new Rect();

        mPaint = new Paint();

        mRect.top = 0;

        mRect.bottom = getWidth();

        mRect.left = 0;

        mRect.right = getHeight();

        mTodayDate = new Date();

        Date startDate = new Date(mTodayDate.getYear(), mTodayDate.getMonth(), 1);

        mStartDays = startDate.getTime()/mTDV;

        mBirthDate = new Date();

        mBirthDate.setYear(0);

    }

    public void setBirthDay(int year, int month, int day) {

        mBirthDate.setYear(year);

        mBirthDate.setMonth(month);

        mBirthDate.setDate(day);

    }

   @Override

   protected void onDraw(Canvas canvas) {

        int cellWidth = getWidth()/mMaxDays;

        mRect.top = 0;

        mRect.bottom = getWidth();

        mRect.left = 0;

        mRect.right = getHeight();

        mPaint.setStyle(Paint.Style.STROKE);

        mPaint.setColor(0xFFFFFFFF);

        int x = 0, y = 0, oldY = 0;

        // 오늘날짜 출력

        mPaint.setColor(0xFFFFFF00);

        x = cellWidth * mTodayDate.getDate(); 

        canvas.drawLine(x, mRect.top, x, mRect.bottom, mPaint);

        // 생채리듬 출력

        if (mBirthDate.getYear() != 0) {

            Log.e("LOG", "year:" + mBirthDate.getYear() +

                    "month:" + mBirthDate.getMonth() +

                    "day:" + mBirthDate.getDate());

            double startDays = mStartDays;

            double birthDays = mBirthDate.getTime()/mTDV;

            for (int k = 0; k < mMaxType; k++) {

                x = 0;

                mPaint.setColor(mColors[k]);

                for (int i = 0; i <= mMaxDays; i++) {

                    double gab = birthDays - startDays;

                    double p = (int)(Math.sin((gab/mBioValues[k]) * 2.0 * mPI) * 100.0);

                    y = mRect.bottom/2 + (int)(p * ((mRect.bottom/2.0)/100.0));

                    if (i != 0)

                        canvas.drawLine(x, oldY, x + cellWidth, y, mPaint);

                    oldY = y;

                    startDays++;

                    x += cellWidth;

                }

            }

        }