content: /*
   * Copyright 2014 Toxic Bakery
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *       http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.geek.banner.transformer.simple;
  
  import android.view.View;
  
  public class FlipHorizontalTransformer extends ABaseTransformer {
  
      @Override
      protected void onTransform(View view, float position) {
          final float rotation = 180f * position;
  
          view.setAlpha(rotation > 90f || rotation < -90f ? 0 : 1);
          view.setPivotX(view.getWidth() * 0.5f);
          view.setPivotY(view.getHeight() * 0.5f);
          view.setRotationY(rotation);
      }
  
      @Override
      protected void onPostTransform(View page, float position) {
          super.onPostTransform(page, position);
  
          //resolve problem: new page can't handle click event!
          if (position > -0.5f && position < 0.5f) {
              page.setVisibility(View.VISIBLE);
          } else {
              page.setVisibility(View.INVISIBLE);
          }
      }
  }
  