Android中实现简单的立体旋转

新建RotateAnimationZ

import android.graphics.Camera;
import android.graphics.Matrix;
import android.view.animation.Animation;
import android.view.animation.Transformation;

public class RotateAnimationZ extends Animation {

    int centerX, centerY;

    Camera camera = new Camera();

    public final int X = 0;

    public final int Y = 1;

    public int direction = Y;

    public boolean isZhengfangxiang = true;

    @Override

    public void initialize(int width, int height, int parentWidth, int parentHeight) {

        super.initialize(width, height, parentWidth, parentHeight);

        //获取中心点坐标
        centerX = width / 2;

        centerY = height / 2;

    }

    @Override

    protected void applyTransformation(float interpolatedTime, Transformation t) {

        super.applyTransformation(interpolatedTime, t);

        final Matrix matrix = t.getMatrix();

        camera.save();

        //中心是绕Y轴旋转 这里可以自行设置X轴 Y轴 Z轴
        if (direction == X) {

            if (isZhengfangxiang) {

                camera.rotateX(360 * interpolatedTime);

            } else {

                camera.rotateX(360 - 360 * interpolatedTime);

            }

        } else {

            if (isZhengfangxiang) {

                camera.rotateY(360 * interpolatedTime);

            } else {

                camera.rotateY(360 - 360 * interpolatedTime);

            }

        }

        //把我们的摄像头加在变换矩阵上
        camera.getMatrix(matrix);

        //设置翻转中心点
        matrix.preTranslate(-centerX, -centerY);

        matrix.postTranslate(centerX, centerY);

        camera.restore();

    }

}

使用

RotateAnimationZ animationZ = new RotateAnimationZ();
        animationZ.isZhengfangxiang = true;
        animationZ.direction = animationZ.Y;
        animationZ.setDuration(2000);
        animationZ.setInterpolator(new AccelerateDecelerateInterpolator());
        imageView.startAnimation(animationZ);

其中imageView是布局中的图片

其他动画教程：

1. ​​【达内课程】Android中的动画（上）​​
2. ​​【达内课程】Android中的动画（下）​​