【开源】ListView3d

ListView3d

• 项目地址： https://github.com/renard314/ListView3d

  介绍：

  ListView的3d效果。原理是重写了ListView的drawChild方法，并且在该方法中变换mMatrix来实现3d效果。

  运行效果：

使用说明：

关键代码：

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private void prepareMatrix(final Matrix outMatrix, int distanceY, int r){     //clip the distance     final int d = Math.min(r, Math.abs(distanceY));     //use circle formula     final float translateZ = (float) Math.sqrt((r * r) - (d * d));     //solve for t: d = r*cos(t)     double radians = Math.acos((float) d / r);     double degree = 90 - (180 / Math.PI) * radians;     mCamera.save();     mCamera.translate(0, 0, r-translateZ);     mCamera.rotateX((float) degree);     if (distanceY < 0) {         degree = 360 - degree;     }     //mCamera.rotateY((float) degree);     mCamera.getMatrix(outMatrix);     mCamera.restore();                                                                     // highlight elements in the middle     mPaint.setColorFilter(calculateLight((float) degree)); }

如果不想在Y方向上有rotate

注释掉：//mCamera.rotateY((float) degree);