Android实现dialog的3D翻转示例

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;    public Rotate3dAnimation(float fromDegrees, float toDegrees,      float centerX, float centerY, float depthZ, boolean reverse) {    mFromDegrees = fromDegrees;    mToDegrees = toDegrees;    mCenterX = centerX;    mCenterY = centerY;    mDepthZ = depthZ;//Z轴移动的距离，这个来影响视觉效果，可以解决flip animation那个给人看似放大的效果    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();    Log.i("interpolatedTime", interpolatedTime+"");    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);  }}