Draw And Move watch Needle on android canvas

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;

public class MeterInAndroid {
    private int height;
    private int width;  
    int y=0;
    private int radius=100;
    public MeterInAndroid(Context context,int h,int w)
    {
        height=h;
        width=w;
    }
    public void Draw(Canvas canvas)
    {
        Paint p=new Paint();
        p.setColor(Color.WHITE);  
        double Number = Math.PI * 2 / 10;
        double Number2=Number*y;
        y++;
        float endX = (float) (width/2+(radius*(Math.cos(Number2))));
        float  endY = (float) (height/2+(radius*(Math.sin(Number2))));
        canvas.drawLine(width/2, height/2, endX, endY, p);
    }

}