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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.view.animation.cts;
     18 
     19 import static org.junit.Assert.assertEquals;
     20 import static org.junit.Assert.assertFalse;
     21 import static org.junit.Assert.assertNotNull;
     22 import static org.junit.Assert.assertTrue;
     23 
     24 import android.app.Activity;
     25 import android.app.Instrumentation;
     26 import android.content.res.XmlResourceParser;
     27 import android.graphics.Matrix;
     28 import android.util.AttributeSet;
     29 import android.util.Xml;
     30 import android.view.View;
     31 import android.view.animation.Animation;
     32 import android.view.animation.LinearInterpolator;
     33 import android.view.animation.RotateAnimation;
     34 import android.view.animation.Transformation;
     35 import android.view.cts.R;
     36 
     37 import androidx.test.InstrumentationRegistry;
     38 import androidx.test.filters.MediumTest;
     39 import androidx.test.rule.ActivityTestRule;
     40 import androidx.test.runner.AndroidJUnit4;
     41 
     42 import org.junit.Before;
     43 import org.junit.Rule;
     44 import org.junit.Test;
     45 import org.junit.runner.RunWith;
     46 
     47 @MediumTest
     48 @RunWith(AndroidJUnit4.class)
     49 public class RotateAnimationTest {
     50     private static final long DURATION = 1000;
     51     private static final float ROTATE_DELTA = 0.001f;
     52     private static final float FROM_DEGREE = 0.0f;
     53     private static final float TO_DEGREE = 90.0f;
     54 
     55     private Instrumentation mInstrumentation;
     56     private Activity mActivity;
     57 
     58     @Rule
     59     public ActivityTestRule<AnimationTestCtsActivity> mActivityRule =
     60             new ActivityTestRule<>(AnimationTestCtsActivity.class);
     61 
     62     @Before
     63     public void setup() {
     64         mInstrumentation = InstrumentationRegistry.getInstrumentation();
     65         mActivity = mActivityRule.getActivity();
     66     }
     67 
     68     @Test
     69     public void testConstructors() {
     70         // Test with null AttributeSet
     71         new RotateAnimation(mActivity, null);
     72 
     73         final XmlResourceParser parser = mActivity.getResources().getAnimation(
     74                 R.anim.anim_rotate);
     75         final AttributeSet attr = Xml.asAttributeSet(parser);
     76         assertNotNull(attr);
     77         // Test with real AttributeSet
     78         new RotateAnimation(mActivity, attr);
     79 
     80         // Test {@link RotateAnimation#RotateAnimation(float, float)}
     81         new RotateAnimation(0.6f, 0.6f);
     82         // Test negative input values
     83         new RotateAnimation(-0.6f, -0.6f);
     84 
     85         // Test {@link RotateAnimation#RotateAnimation(float, float, float, float)}
     86         new RotateAnimation(0.6f, 0.6f, 0.6f, 0.6f);
     87         // Test negative input values
     88         new RotateAnimation(-0.6f, -0.6f, -0.6f, -0.6f);
     89 
     90         // Test {@link RotateAnimation#RotateAnimation(float, float, int, float, int, float)}
     91         new RotateAnimation(0.6f, 0.6f, Animation.ABSOLUTE, 0.6f, Animation.ABSOLUTE, 0.6f);
     92         // Test negative input values
     93         new RotateAnimation(-0.6f, -0.6f, Animation.ABSOLUTE, -0.6f, Animation.ABSOLUTE, -0.6f);
     94     }
     95 
     96     @Test
     97     public void testRotateAgainstOrigin() throws Throwable {
     98         final View animWindowParent = mActivity.findViewById(R.id.anim_window_parent);
     99         final View animWindow = mActivity.findViewById(R.id.anim_window);
    100         Transformation transformation = new Transformation();
    101         // Test when mPivot x and y equal to 0.
    102         MyRotateAnimation rotateAnimation = new MyRotateAnimation(FROM_DEGREE, TO_DEGREE);
    103         rotateAnimation.setDuration(DURATION);
    104         rotateAnimation.setInterpolator(new LinearInterpolator());
    105 
    106         assertFalse(rotateAnimation.isInitialized());
    107         rotateAnimation.initialize(animWindow.getWidth(), animWindow.getHeight(),
    108                 animWindowParent.getWidth(), animWindowParent.getHeight());
    109         assertTrue(rotateAnimation.isInitialized());
    110 
    111         AnimationTestUtils.assertRunAnimation(mInstrumentation, mActivityRule, animWindow,
    112                 rotateAnimation);
    113         final long startTime = rotateAnimation.getStartTime();
    114 
    115         Matrix expectedMatrix = new Matrix();
    116         expectedMatrix.setRotate(FROM_DEGREE);
    117         rotateAnimation.getTransformation(startTime, transformation);
    118         assertMatrixEquals(expectedMatrix, transformation.getMatrix());
    119         transformation.clear();
    120         rotateAnimation.applyTransformation(0.0f, transformation);
    121         assertMatrixEquals(expectedMatrix, transformation.getMatrix());
    122 
    123         expectedMatrix.reset();
    124         expectedMatrix.setRotate((FROM_DEGREE + TO_DEGREE) / 2);
    125         rotateAnimation.getTransformation(startTime + DURATION / 2, transformation);
    126         assertMatrixEquals(expectedMatrix, transformation.getMatrix());
    127         transformation.clear();
    128         rotateAnimation.applyTransformation(0.5f, transformation);
    129         assertMatrixEquals(expectedMatrix, transformation.getMatrix());
    130 
    131         expectedMatrix.reset();
    132         expectedMatrix.setRotate(TO_DEGREE);
    133         rotateAnimation.getTransformation(startTime + DURATION, transformation);
    134         assertMatrixEquals(expectedMatrix, transformation.getMatrix());
    135         rotateAnimation.applyTransformation(1.0f, transformation);
    136         assertMatrixEquals(expectedMatrix, transformation.getMatrix());
    137     }
    138 
    139     private void assertMatrixEquals(Matrix expectedMatrix, Matrix actualMatrix) {
    140         final float[] expectedMatrixValues = new float[9];
    141         final float[] actualMatrixValues = new float[9];
    142         expectedMatrix.getValues(expectedMatrixValues);
    143         actualMatrix.getValues(actualMatrixValues);
    144         for (int i = 0; i < 9; i++) {
    145             assertEquals(expectedMatrixValues[i], actualMatrixValues[i], ROTATE_DELTA);
    146         }
    147     }
    148 
    149     @Test
    150     public void testRotateAgainstPoint() throws Throwable {
    151         final View animWindowParent = mActivity.findViewById(R.id.anim_window_parent);
    152         final View animWindow = mActivity.findViewById(R.id.anim_window);
    153         Transformation transformation = new Transformation();
    154         final float pivotX = 0.2f;
    155         final float pivotY = 0.2f;
    156         final float actualPivotX = pivotX * animWindowParent.getWidth();
    157         final float actualPivotY = pivotY * animWindow.getHeight();
    158         // Test when mPivot x and y are not origin
    159         MyRotateAnimation rotateAnimation = new MyRotateAnimation(FROM_DEGREE, TO_DEGREE,
    160                     Animation.RELATIVE_TO_PARENT, pivotX, Animation.RELATIVE_TO_SELF, pivotY);
    161         rotateAnimation.setDuration(DURATION);
    162         rotateAnimation.setInterpolator(new LinearInterpolator());
    163 
    164         assertFalse(rotateAnimation.isInitialized());
    165         rotateAnimation.initialize(animWindow.getWidth(), animWindow.getHeight(),
    166                 animWindowParent.getWidth(), animWindowParent.getHeight());
    167         assertTrue(rotateAnimation.isInitialized());
    168 
    169         AnimationTestUtils.assertRunAnimation(mInstrumentation, mActivityRule, animWindow,
    170                 rotateAnimation);
    171         final long startTime = rotateAnimation.getStartTime();
    172 
    173         Matrix expectedMatrix = new Matrix();
    174         expectedMatrix.setRotate(FROM_DEGREE, actualPivotX, actualPivotY);
    175         rotateAnimation.getTransformation(startTime, transformation);
    176         assertMatrixEquals(expectedMatrix, transformation.getMatrix());
    177         transformation.clear();
    178         rotateAnimation.applyTransformation(0.0f, transformation);
    179         assertMatrixEquals(expectedMatrix, transformation.getMatrix());
    180 
    181         expectedMatrix.reset();
    182         expectedMatrix.setRotate((FROM_DEGREE + TO_DEGREE) / 2, actualPivotX, actualPivotY);
    183         rotateAnimation.getTransformation(startTime + DURATION / 2, transformation);
    184         assertMatrixEquals(expectedMatrix, transformation.getMatrix());
    185         transformation.clear();
    186         rotateAnimation.applyTransformation(0.5f, transformation);
    187         assertMatrixEquals(expectedMatrix, transformation.getMatrix());
    188 
    189         expectedMatrix.reset();
    190         expectedMatrix.setRotate(TO_DEGREE, actualPivotX, actualPivotY);
    191         rotateAnimation.getTransformation(startTime + DURATION, transformation);
    192         assertMatrixEquals(expectedMatrix, transformation.getMatrix());
    193         transformation.clear();
    194         rotateAnimation.applyTransformation(1.0f, transformation);
    195         assertMatrixEquals(expectedMatrix, transformation.getMatrix());
    196     }
    197 
    198     private static class MyRotateAnimation extends RotateAnimation {
    199 
    200         public MyRotateAnimation(float fromDegrees, float toDegrees) {
    201             super(fromDegrees, toDegrees);
    202         }
    203 
    204         public MyRotateAnimation(float fromDegrees, float toDegrees, float pivotX, float pivotY) {
    205             super(fromDegrees, toDegrees, pivotX, pivotY);
    206         }
    207 
    208         public MyRotateAnimation(float fromDegrees, float toDegrees, int pivotXType,
    209                 float pivotX, int pivotYType, float pivotY) {
    210             super(fromDegrees, toDegrees, pivotXType, pivotX, pivotYType, pivotY);
    211         }
    212 
    213         @Override
    214         protected void applyTransformation(float interpolatedTime, Transformation t) {
    215             super.applyTransformation(interpolatedTime, t);
    216         }
    217     }
    218 }
    219