有另一种方式来绘制一个对象在Android的画布上？

里面得出这样的code（）不工作：

  BMP位= BitmapFactory.de codeResource（getResources（），R.drawable.pushpin）;
         canvas.drawBitmap（BMP，screenPts.x，screenPts.y-50，空）;  

嗯，事实上，它的工作对我的第一code，但是当我转移至其它类叫做MarkOverlay，它不工作了。

  markerOverlay =新MarkerOverlay（getApplicationContext（），P）;
                      listOfOverlays.add（markerOverlay）;  

我要传递给MarkerOverlay什么参数，使这个code的工作？该错误是在getResources某处（）。

仅供参考，canvas.drawOval完美地工作，但我真的想画的图像不是一个椭圆形。 :)

 包com.canvas;

进口android.content.Context;
进口android.graphics.Bitmap;
进口android.graphics.BitmapFactory;
进口android.graphics.Canvas;
进口android.graphics.Color;
进口android.graphics.Paint;
进口android.view.View;

公共类Keypaint扩展视图{
    涂料P;

    @覆盖
    保护无效的OnDraw（帆布油画）{
        super.onDraw（画布）;
        P =新的油漆（）;
        位图B = BitmapFactory.de codeResource（getResources（），R.drawable.icon）;
        p.setColor（Color.RED）;
        canvas.drawBitmap（二，0，0，p）的;
    }

    公共Keypaint（上下文的背景下）{
        超（上下文）;
    }
}
 

Is there another way to draw an object on a canvas in android?

This code inside draw() doesn't work:

Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.pushpin);            
         canvas.drawBitmap(bmp, screenPts.x, screenPts.y-50, null);  

Well actually, it's working on my 1st code but when I've transfered this to another class called MarkOverlay, it's not working anymore.

  markerOverlay = new MarkerOverlay(getApplicationContext(), p);
                      listOfOverlays.add(markerOverlay);  

What parameter should I pass to MarkerOverlay to make this code work? The error is somewhere in getResources().

FYI, canvas.drawOval is perfectly working but I really want to draw an Image not an Oval. :)

package com.canvas;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.view.View;

public class Keypaint extends View {
    Paint p;

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        p=new Paint();
        Bitmap b=BitmapFactory.decodeResource(getResources(), R.drawable.icon);
        p.setColor(Color.RED);
        canvas.drawBitmap(b, 0, 0, p);
    }

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