/** * An animation that rotates the view on the Y axis between two specified angles. * This animation also adds a translation on the Z axis (depth) to improve the effect. */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 //起始角度   * @param toDegrees the end angle of the 3D rotation //結束角度   * @param centerX the X center of the 3D rotation //x中軸線   * @param centerY the Y center of the 3D rotation //y中軸線   * @param reverse true if the translation should be reversed, false otherwise//是否反轉   */  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軸移動的距離，這個來影響視覺效果，可以解決flip animation那個給人看似放大的效果    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);  }}

public class MyDialog extends Dialog {  @BindView(R.id.et_user_name)  EditText etUserName;  @BindView(R.id.et_password)  EditText etPassword;  @BindView(R.id.cb_auto_login)  CheckBox cbAutoLogin;  @BindView(R.id.tv_forget_pwd)  TextView tvForgetPwd;  @BindView(R.id.ll_content)  LinearLayout llContent;  @BindView(R.id.et_email)  EditText etEmail;  @BindView(R.id.btn_back)  Button btnBack;  @BindView(R.id.container)  RelativeLayout container;  private Context context;  @BindView(R.id.ll_register)  LinearLayout llRegister;  //接口回調傳遞參數  private OnClickListenerInterface mListener;  private View view;//  private String strContent;  private int centerX;  private int centerY;  private int depthZ = 700;//修改此處可以改變距離來達到你滿意的效果  private int duration = 300;//動畫時間  private Rotate3dAnimation openAnimation;  private Rotate3dAnimation closeAnimation;  private boolean isOpen = false;  public interface OnClickListenerInterface {    /**     * 確認,     */    void doConfirm();    /**     * 取消     *///    public void doCancel();  }  public MyDialog(Context context) {    super(context);    this.context = context;  }  public MyDialog(Context context, String content) {    super(context);    this.context = context;    this.strContent = content;  }  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    //去掉系統(tǒng)的黑色矩形邊框    getWindow().setBackgroundDrawableResource(android.R.color.transparent);    requestWindowFeature(Window.FEATURE_NO_TITLE);    init();  }  public void init() {    LayoutInflater inflater = LayoutInflater.from(context);    view = inflater.inflate(R.layout.dialog_my, null);    setContentView(view);    ButterKnife.bind(this);    etPassword.setTypeface(Typeface.DEFAULT);    etPassword.setTransformationMethod(new PasswordTransformationMethod());    tvForgetPwd.setOnClickListener(new OnWidgetClickListener());    btnBack.setOnClickListener(new OnWidgetClickListener());    Window dialogWindow = getWindow();    WindowManager.LayoutParams lp = dialogWindow.getAttributes();    DisplayMetrics d = context.getResources().getDisplayMetrics(); // 獲取屏幕寬、高用    lp.width = (int) (d.widthPixels * 0.8); // 寬度設置為屏幕的0.8    lp.height = (int) (d.heightPixels * 0.6); // 高度設置為屏幕的0.6    dialogWindow.setAttributes(lp);    setCanceledOnTouchOutside(false);    setCancelable(true);  }  public void setClicklistener(OnClickListenerInterface clickListenerInterface) {    this.mListener = clickListenerInterface;  }  private class OnWidgetClickListener implements View.OnClickListener {    @Override    public void onClick(View v) {      int id = v.getId();      switch (id) {        case R.id.tv_forget_pwd:          startAnimation();          break;        case R.id.btn_back:          startAnimation();          break;      }    }  }  private void startAnimation() {    //接口回調傳遞參數    centerX = container.getWidth() / 2;    centerY = container.getHeight() / 2;    if (openAnimation == null) {      initOpenAnim();      initCloseAnim();    }    //用作判斷當前點擊事件發(fā)生時動畫是否正在執(zhí)行    if (openAnimation.hasStarted() && !openAnimation.hasEnded()) {      return;    }    if (closeAnimation.hasStarted() && !closeAnimation.hasEnded()) {      return;    }    //判斷動畫執(zhí)行    if (isOpen) {      container.startAnimation(openAnimation);    } else {      container.startAnimation(closeAnimation);    }    isOpen = !isOpen;  }  /**   *注意旋轉角度   */  private void initOpenAnim() {    //從0到90度，順時針旋轉視圖，此時reverse參數為true，達到90度時動畫結束時視圖變得不可見，    openAnimation = new Rotate3dAnimation(0, 90, centerX, centerY, depthZ, true);    openAnimation.setDuration(duration);    openAnimation.setFillAfter(true);    openAnimation.setInterpolator(new AccelerateInterpolator());    openAnimation.setAnimationListener(new Animation.AnimationListener() {      @Override      public void onAnimationStart(Animation animation) {      }      @Override      public void onAnimationRepeat(Animation animation) {      }      @Override      public void onAnimationEnd(Animation animation) {        llRegister.setVisibility(View.GONE);        llContent.setVisibility(View.VISIBLE);        //從270到360度，順時針旋轉視圖，此時reverse參數為false，達到360度動畫結束時視圖變得可見        Rotate3dAnimation rotateAnimation = new Rotate3dAnimation(270, 360, centerX, centerY, depthZ, false);        rotateAnimation.setDuration(duration);        rotateAnimation.setFillAfter(true);        rotateAnimation.setInterpolator(new DecelerateInterpolator());        container.startAnimation(rotateAnimation);      }    });  }    private void initCloseAnim() {    closeAnimation = new Rotate3dAnimation(360, 270, centerX, centerY, depthZ, true);    closeAnimation.setDuration(duration);    closeAnimation.setFillAfter(true);    closeAnimation.setInterpolator(new AccelerateInterpolator());    closeAnimation.setAnimationListener(new Animation.AnimationListener() {      @Override      public void onAnimationStart(Animation animation) {      }      @Override      public void onAnimationRepeat(Animation animation) {      }      @Override      public void onAnimationEnd(Animation animation) {        llRegister.setVisibility(View.VISIBLE);        llContent.setVisibility(View.GONE);        Rotate3dAnimation rotateAnimation = new Rotate3dAnimation(90, 0, centerX, centerY, depthZ, false);        rotateAnimation.setDuration(duration);        rotateAnimation.setFillAfter(true);        rotateAnimation.setInterpolator(new DecelerateInterpolator());        container.startAnimation(rotateAnimation);      }    });  }}