关于画图速度相关问题
我要将存在data对象里的2000个点要画在屏幕上
Bitmap bitmap = Bitmap.createBitmap(2000,100，Config.ARGB_8888);
Canvas canvasTemp=new Canvas(bitmap);
Paint paint=new Paint();
for (int i = 0; i < 2000; i++) {
canvasTemp.drawPoint(i, data.getData(i), paint);
}
Matrix matrix = new Matrix();
float scaleWidth = ((float) 640 / 2000);
float scaleHeight = ((float) 480/ 100);
matrix.postScale(scaleWidth, scaleHeight);
Bitmap newbmp = Bitmap.createBitmap(bitmap, 0, 0,2000, 100, matrix, true);
canvas.drawBitmap(newbmp, 0, 0, new Paint());
这样画图速度太慢了，大概需要5,6秒。怎么可以让画图速度快些，谢谢
