参考: http://blog.csdn.net/u012534831/article/details/52636741
private Bitmap drawbitmap() {
//TODO Auto-generated method stub
Bitmap photo = BitmapFactory.decodeResource(ActivityHelper.last().getResources(),R.drawable.popup);
intwidth = photo.getWidth();
inthight = photo.getHeight();
Bitmap newb = Bitmap.createBitmap(width,hight,Bitmap.Config.ARGB_8888);
Canvas canvas =newCanvas(newb);// 初始化和方框一样大小的位图
Paint photoPaint =newPaint();// 建立画笔
canvas.drawBitmap(photo,0,0,photoPaint);
canvas.save(Canvas.ALL_SAVE_FLAG);
canvas.restore();
returnnewb;
}
private Bitmap drawtext(Bitmap bitmap3,String info) {
//TODO Auto-generated method stub
TextPaint textPaint =newTextPaint(Paint.ANTI_ALIAS_FLAG| Paint.DEV_KERN_TEXT_FLAG);//设置画笔
textPaint.setTextSize(UnitUtils.sp2px(ActivityHelper.last().getBaseContext(),12));//字体大小
textPaint.setTextAlign(Paint.Align.CENTER);
textPaint.setTypeface(Typeface.DEFAULT_BOLD);//采用默认的宽度
textPaint.setColor(Color.parseColor("#FD571B"));//采用的颜色
intwidth = (int)textPaint.measureText(info) +20;
inthight = UnitUtils.dip2px(ActivityHelper.last().getBaseContext(),20);
Bitmap btm= Bitmap.createBitmap(width,hight,Bitmap.Config.ARGB_8888);//建立一个空的BItMap
Canvas canvas =newCanvas(btm);
Paint photoPaint =newPaint();//建立画笔
photoPaint.setDither(true);//获取跟清晰的图像采样
photoPaint.setFilterBitmap(true);//过滤一些
Rect src =newRect(0,0,bitmap3.getWidth(),bitmap3.getHeight());//创建一个指定的新矩形的坐标
Rect dst =newRect(0,0,width,hight);//创建一个指定的新矩形的坐标
canvas.drawBitmap(bitmap3,src,dst,photoPaint);//将photo 缩放或则扩大到 dst使用的填充区photoPaint
canvas.drawText(info,width/2,hight/2+ UnitUtils.dip2px(ActivityHelper.last().getBaseContext(),3),textPaint);//绘制上去字，中间参数为坐标点
canvas.save(Canvas.ALL_SAVE_FLAG);//保存
canvas.restore();
returnbtm;
}
Bitmap bitmap = drawtext(drawbitmap(),item.getName());// drawbitmap();//
LatLng pt2 =newLatLng(item.getLatitude(),item.getLongitude());
BitmapDescriptor des = BitmapDescriptorFactory.fromBitmap(bitmap);
OverlayOptions option =newMarkerOptions().position(pt2).icon(des).zIndex(9);
mBaiduMap.addOverlay(option);
