get Collapse View Animation - Android Animation

Android examples for Animation:Collapse Animation

  1. HOME
  2. Android
  3. Animation
  4. Collapse Animation

Description

get Collapse View Animation

Demo Code

/*//from   w w w  .ja  va  2 s  .c  o  m
 * Copyright (C) 2016 Marco Hernaiz Cao
 *
 * 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.java2s;

import android.view.View;

import android.view.animation.Animation;

import android.view.animation.Transformation;

public class Main {
    public static Animation getCollapseViewAnimation(final View view,
            int duration) {
        final int initialHeight = view.getMeasuredHeight();

        Animation animation = new Animation() {
            @Override
            protected void applyTransformation(float interpolatedTime,
                    Transformation t) {
                if (interpolatedTime == 1) {
                    view.setVisibility(View.GONE);
                } else {
                    view.getLayoutParams().height = initialHeight
                            - (int) (initialHeight * interpolatedTime);
                    view.requestLayout();
                }
            }

            @Override
            public boolean willChangeBounds() {
                return true;
            }
        };

        animation.setDuration(duration);
        return animation;
    }
}

Related Tutorials