android - Android：路径中的模糊 ShapeDrawable

Question

我正在尝试制作一个ShapeDrawable，但是当我调整它的大小时，Android 会画出一条模糊的线。我知道一些示例代码说这不会发生，所以我不明白我做错了什么。这是我写的：

Path pathTriangulo = new Path();
pathTriangulo.moveTo(0, 0);
pathTriangulo.lineTo(50, 0);
pathTriangulo.lineTo(50, 50);
pathTriangulo.lineTo(0, 0);
miImagen = new ShapeDrawable(new PathShape(pathTriangulo,50,50));
miImagen.getPaint().setColor(Color.BLACK);
miImagen.getPaint().setStyle(Paint.Style.STROKE);
miImagen.setBounds(0, 0, 5000, 5000); 

如果我写得miImagen.setBounds(0,0,50,50)很好：/如果你能帮助我，我将不胜感激！

Answer 1

您的 shapedrawable 应该覆盖 onBoundsChange() 并基于边界创建一个新的 PathShape。使用 setShape() 将新的 PathShape 应用到 shapedrawable

    miImagen = new ShapeDrawable(new PathShape(pathTriangulo,50,50)) {
        @Override
        protected void onBoundsChange(Rect bounds) {
            super.onBoundsChange(bounds);
            Path pathTriangulo = new Path();
            pathTriangulo.moveTo(0, 0);
            pathTriangulo.lineTo(50, 0);
            pathTriangulo.lineTo(50, 50);
            pathTriangulo.lineTo(0, 0);
            setShape( new PathShape(pathTriangulo, bounds.width(), bounds.height()));

        }
    };