How to make route drawing more efficient?

Question

This is the code I\'m using to draw route. When i have 1000 of points, route severely slows ui. Maybe someone could provide a code snippet or a link which explains how to do

Answer 1

1. You should know that draw() method draws one draw cycle about 50 times. I do not know why, but you can test it. This slows down the performance. And if you have to draw 1000 object and draw() draws them 30-50 each...it is getting very very clumsy.. To avoid this, you should create a cache overlay.This cache will draw all objects only once and will reject the other draws.

2. To speed up the process, draw in background thread with low priority.

3. The fastest way to draw a line between multiple points is to use the method Canvas.drawLines(float[] pts, int offset, int count, Paint paint). I have tested all methods and this is the fastest method that android offers.