SwingBottomInAnimationAdapter.java

/*
 * Copyright 2014 Niek Haarman
 *
 * 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.nhaarman.listviewanimations.appearance.simple;

import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;

import com.nhaarman.listviewanimations.appearance.SingleAnimationAdapter;
import com.nineoldandroids.animation.Animator;
import com.nineoldandroids.animation.ObjectAnimator;
import com.pan.simplepicture.annotations.NonNull;

/**
 * An implementation of the AnimationAdapter class which applies a
 * swing-in-from-bottom-animation to views.
 */
public class SwingBottomInAnimationAdapter extends SingleAnimationAdapter {

	private static final String TRANSLATION_Y = "translationY";

	public SwingBottomInAnimationAdapter(@NonNull final BaseAdapter baseAdapter) {
		super(baseAdapter);
	}

	@Override
	@NonNull
	protected Animator getAnimator(@NonNull final ViewGroup parent,
			@NonNull final View view) {
		return ObjectAnimator.ofFloat(view, TRANSLATION_Y,
				parent.getMeasuredHeight() >> 1, 0);
	}

}