Canvas 生成 bitmap

引用：http://wiseideal.iteye.com/blog/1175160

int w = 320,h = 240;
String mstrTitle = “感受Android带给我们的新体验”;
Bitmap mbmpTest = Bitmap.createBitmap(w,h, Config.ARGB_8888);
Canvas canvasTemp = new Canvas(mbmpTest);
canvasTemp.drawColor(Color.WHITE);
Paint p = new Paint();
String familyName = “宋体”;
Typeface font = Typeface.create(familyName,Typeface.BOLD);
p.setColor(Color.RED);
p.setTypeface(font);
p.setTextSize(22);
canvasTemp.drawText(mstrTitle,0,100,p);

在canvas初始化的时候就传入了一个空的bitmap 最后canvas中绘画的内容都被绘制到了bitmap中，从而得到了我们需要的bitmap