| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * 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 android.view.animation.cts; |
| |
| import android.content.res.XmlResourceParser; |
| import android.test.AndroidTestCase; |
| import android.util.AttributeSet; |
| import android.util.Xml; |
| import android.view.animation.AlphaAnimation; |
| import android.view.animation.Transformation; |
| |
| import com.android.cts.stub.R; |
| |
| /** |
| * Test {@link AlphaAnimation}. |
| */ |
| public class AlphaAnimationTest extends AndroidTestCase { |
| public void testConstructor() { |
| XmlResourceParser parser = mContext.getResources().getAnimation(R.anim.alpha); |
| AttributeSet attrs = Xml.asAttributeSet(parser); |
| new AlphaAnimation(mContext, attrs); |
| |
| new AlphaAnimation(0.0f, 1.0f); |
| } |
| |
| public void testWillChangeBounds() { |
| AlphaAnimation animation = new AlphaAnimation(mContext, null); |
| assertFalse(animation.willChangeBounds()); |
| } |
| |
| public void testWillChangeTransformationMatrix() { |
| AlphaAnimation animation = new AlphaAnimation(0.0f, 0.5f); |
| assertFalse(animation.willChangeTransformationMatrix()); |
| } |
| |
| public void testApplyTransformation() { |
| MyAlphaAnimation animation = new MyAlphaAnimation(0.0f, 1.0f); |
| Transformation transformation = new Transformation(); |
| assertEquals(1.0f, transformation.getAlpha(), 0.0001f); |
| |
| animation.applyTransformation(0.0f, transformation); |
| assertEquals(0.0f, transformation.getAlpha(), 0.0001f); |
| |
| animation.applyTransformation(0.5f, transformation); |
| assertEquals(0.5f, transformation.getAlpha(), 0.0001f); |
| |
| animation.applyTransformation(1.0f, transformation); |
| assertEquals(1.0f, transformation.getAlpha(), 0.0001f); |
| |
| animation = new MyAlphaAnimation(0.2f, 0.9f); |
| transformation = new Transformation(); |
| assertEquals(1.0f, transformation.getAlpha(), 0.0001f); |
| |
| animation.applyTransformation(0.0f, transformation); |
| assertEquals(0.2f, transformation.getAlpha(), 0.0001f); |
| |
| animation.applyTransformation(0.5f, transformation); |
| assertEquals(0.55f, transformation.getAlpha(), 0.0001f); |
| |
| animation.applyTransformation(1.0f, transformation); |
| assertEquals(0.9f, transformation.getAlpha(), 0.0001f); |
| } |
| |
| private final class MyAlphaAnimation extends AlphaAnimation { |
| public MyAlphaAnimation(float fromAlpha, float toAlpha) { |
| super(fromAlpha, toAlpha); |
| } |
| |
| @Override |
| protected void applyTransformation(float interpolatedTime, Transformation t) { |
| super.applyTransformation(interpolatedTime, t); |
| } |
| } |
| } |