Android Java:在位图上绘制折线 [英] Android java : Draw polyline on Bitmap

问题描述

我想在包含图片的位图上绘制多段线，但是我不知道是否可以在位图上绘制多段线.任何想法 ?感谢您的帮助.

I want to draw a polyline on a Bitmap which contains a picture but I don't know if I can draw a polyline on a Bitmap. Any idea ? Thanks for help.

推荐答案

您可以使用以下功能:

canvas.drawLines(float[] pts, 
            int offset, 
            int count, 
            Paint paint);

OR

canvas.drawPath(Path path, 
                Paint paint);

检查以下链接以获取更多详细信息: https://developer.android.com/reference/android/graphics/Canvas.html

Check below links for more details: https://developer.android.com/reference/android/graphics/Canvas.html

https://developer.android.com/reference/android/graphics/Canvas.html#drawLines(float [] ，int，int，android.graphics.Paint)

https://developer.android.com/reference/android/graphics/Canvas.html#drawLines(float[], int, int, android.graphics.Paint)

https://developer.android.com/reference/android/graphics/Canvas.html#drawPath(android.graphics.Path ，android.graphics.Paint)

https://developer.android.com/reference/android/graphics/Canvas.html#drawPath(android.graphics.Path, android.graphics.Paint)

这篇关于Android Java:在位图上绘制折线的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！