Android uses path to realize graffiti function

Today, a graffiti effect will be realized in several steps. There is an important knowledge point here is the layer. To understand this, otherwise you will be very confused when reading this blog. The confused boundless horizon is my love. Start with simple requirements and draw a line. The code is as follows:

effect:

If you don't use the quadto() method of path, you can also use the lineto() method, but the path drawn by queadto() is not smooth. How are these five paths drawn on the screen? The concept of layer is mentioned above. If you don't understand it, you can read my previous blog about canvas or other blogs on the Internet. We know that every canvas.draw... () actually generates a new layer, but the layer is transparent and finally looms on the canvas. Canvas analysis:

The above is what Xiaobian introduced to you. Android uses path to realize the graffiti function. I hope it will help you. If you have any questions, please leave me a message, and Xiaobian will reply to you in time. Thank you very much for your support for the programming tips website!