3D立体动画,实现开门的效果

需要的工具类:

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

/**
 * 3D旋转动画
 */
public class Rotate3dAnimation extends Animation {
    private final float mFromDegrees;
    private final float mToDegrees;
    private final float mCenterX;
    private final float mCenterY;
    private final float mDepthZ;
    private final boolean mReverse;
    private Camera mCamera;

    /**
     * Creates a new 3D rotation on the Y axis. The rotation is defined by its
     * start angle and its end angle. Both angles are in degrees. The rotation
     * is performed around a center point on the 2D space, definied by a pair
     * of X and Y coordinates, called centerX and centerY. When the animation
     * starts, a translation on the Z axis (depth) is performed. The length
     * of the translation can be specified, as well as whether the translation
     * should be reversed in time.
     *
     * @param fromDegrees the start angle of the 3D rotation
     * @param toDegrees the end angle of the 3D rotation
     * @param centerX the X center of the 3D rotation
     * @param centerY the Y center of the 3D rotation
     * @param reverse true if the translation should be reversed, false otherwise
     */
    public Rotate3dAnimation(float fromDegrees, float toDegrees,
                             float centerX, float centerY, float depthZ, boolean reverse) {
        mFromDegrees = fromDegrees;
        mToDegrees = toDegrees;
        mCenterX = centerX;
        mCenterY = centerY;
        mDepthZ = depthZ;
        mReverse = reverse;
    }

    @Override
    public void initialize(int width, int height, int parentWidth, int parentHeight) {
        super.initialize(width, height, parentWidth, parentHeight);
        mCamera = new Camera();
    }

    @Override
    protected void applyTransformation(float interpolatedTime, Transformation t) {
        final float fromDegrees = mFromDegrees;
        float degrees = fromDegrees + ((mToDegrees - fromDegrees) * interpolatedTime);

        final float centerX = mCenterX;
        final float centerY = mCenterY;
        final Camera camera = mCamera;

        final Matrix matrix = t.getMatrix();

        camera.save();
        if (mReverse) {
            camera.translate(0.0f, 0.0f, mDepthZ * interpolatedTime);
        } else {
            camera.translate(0.0f, 0.0f, mDepthZ * (1.0f - interpolatedTime));
        }
        camera.rotateY(degrees);
        camera.getMatrix(matrix);
        camera.restore();

        matrix.preTranslate(-centerX, -centerY);
        matrix.postTranslate(centerX, centerY);
    }
}

执行动画代码:需要注意的就是获取不到坐标

/**
     * 开锁的3D动画
     */
    private void rotate3dAnimation(){
        // 获取左边图片的宽高,作为旋转的中心点
        float centerX = 0;
        float centerY = lockLayout.getHeight() / 2f;
        // 构建3D旋转动画对象，旋转角度为360到270度，这使得ImageView将会从可见变为不可见，并且旋转的方向是相反的
        Rotate3dAnimation rotation = new Rotate3dAnimation(0, 90, centerX,
                centerY, 0f, true);
        // 动画持续时间500毫秒
        rotation.setDuration(1000);
        // 动画完成后保持完成的状态
        rotation.setFillAfter(true);
        rotation.setInterpolator(new AccelerateInterpolator());
        // 设置动画的监听器
        rotation.setAnimationListener(new Animation.AnimationListener() {
            @Override
            public void onAnimationStart(Animation animation) {

            }

            @Override
            public void onAnimationEnd(Animation animation) {
                //加载本地视频数据
                ToastUtils.makeText("加载本地视频吧");
            }

            @Override
            public void onAnimationRepeat(Animation animation) {

            }
        });

        // 获取右边图片的宽高,作为旋转的中心点
        int w = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
        int h = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
        lockRight.measure(w, h);
        int height =lockRight.getMeasuredHeight();
        int width =lockRight.getMeasuredWidth();
        float centerX2 = width/2;
        float centerY2 = height / 2f;
        LogUtils.i("tag","坐标:("+centerX2+","+centerY2+")");
        // 构建3D旋转动画对象，旋转角度为360到270度，这使得ImageView将会从可见变为不可见，并且旋转的方向是相反的
        Rotate3dAnimation rotation2 = new Rotate3dAnimation(360, 270, centerX2,
                centerY2, 0f, true);
        // 动画持续时间
        rotation2.setDuration(1000);
        // 动画完成后保持完成的状态
        rotation2.setFillAfter(true);
        rotation2.setInterpolator(new AccelerateInterpolator());
        //开始执行动画
        lockLeft.startAnimation(rotation);
        lockRight.startAnimation(rotation2);
    }

效果: