| /* |
| * Copyright (C) 2017 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.support.transition; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNull; |
| import static org.mockito.Matchers.any; |
| import static org.mockito.Mockito.never; |
| import static org.mockito.Mockito.times; |
| import static org.mockito.Mockito.verify; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.graphics.Matrix; |
| import android.graphics.drawable.Drawable; |
| import android.support.annotation.NonNull; |
| import android.support.test.InstrumentationRegistry; |
| import android.support.test.filters.MediumTest; |
| import android.support.transition.test.R; |
| import android.support.v4.app.ActivityCompat; |
| import android.util.DisplayMetrics; |
| import android.util.TypedValue; |
| import android.view.ViewGroup; |
| import android.widget.ImageView; |
| |
| import org.junit.Test; |
| |
| @MediumTest |
| public class ChangeImageTransformTest extends BaseTransitionTest { |
| |
| private ChangeImageTransform mChangeImageTransform; |
| private Matrix mStartMatrix; |
| private Matrix mEndMatrix; |
| private Drawable mImage; |
| private ImageView mImageView; |
| |
| @Override |
| Transition createTransition() { |
| mChangeImageTransform = new CaptureMatrix(); |
| mChangeImageTransform.setDuration(100); |
| mTransition = mChangeImageTransform; |
| resetListener(); |
| return mChangeImageTransform; |
| } |
| |
| @Test |
| public void testCenterToFitXY() throws Throwable { |
| transformImage(ImageView.ScaleType.CENTER, ImageView.ScaleType.FIT_XY); |
| verifyMatrixMatches(centerMatrix(), mStartMatrix); |
| verifyMatrixMatches(fitXYMatrix(), mEndMatrix); |
| } |
| |
| @Test |
| public void testCenterCropToFitCenter() throws Throwable { |
| transformImage(ImageView.ScaleType.CENTER_CROP, ImageView.ScaleType.FIT_CENTER); |
| verifyMatrixMatches(centerCropMatrix(), mStartMatrix); |
| verifyMatrixMatches(fitCenterMatrix(), mEndMatrix); |
| } |
| |
| @Test |
| public void testCenterInsideToFitEnd() throws Throwable { |
| transformImage(ImageView.ScaleType.CENTER_INSIDE, ImageView.ScaleType.FIT_END); |
| // CENTER_INSIDE and CENTER are the same when the image is smaller than the View |
| verifyMatrixMatches(centerMatrix(), mStartMatrix); |
| verifyMatrixMatches(fitEndMatrix(), mEndMatrix); |
| } |
| |
| @Test |
| public void testFitStartToCenter() throws Throwable { |
| transformImage(ImageView.ScaleType.FIT_START, ImageView.ScaleType.CENTER); |
| verifyMatrixMatches(fitStartMatrix(), mStartMatrix); |
| verifyMatrixMatches(centerMatrix(), mEndMatrix); |
| } |
| |
| private Matrix centerMatrix() { |
| int imageWidth = mImage.getIntrinsicWidth(); |
| int imageViewWidth = mImageView.getWidth(); |
| float tx = Math.round((imageViewWidth - imageWidth) / 2f); |
| |
| int imageHeight = mImage.getIntrinsicHeight(); |
| int imageViewHeight = mImageView.getHeight(); |
| float ty = Math.round((imageViewHeight - imageHeight) / 2f); |
| |
| Matrix matrix = new Matrix(); |
| matrix.postTranslate(tx, ty); |
| return matrix; |
| } |
| |
| private Matrix fitXYMatrix() { |
| int imageWidth = mImage.getIntrinsicWidth(); |
| int imageViewWidth = mImageView.getWidth(); |
| float scaleX = ((float) imageViewWidth) / imageWidth; |
| |
| int imageHeight = mImage.getIntrinsicHeight(); |
| int imageViewHeight = mImageView.getHeight(); |
| float scaleY = ((float) imageViewHeight) / imageHeight; |
| |
| Matrix matrix = new Matrix(); |
| matrix.postScale(scaleX, scaleY); |
| return matrix; |
| } |
| |
| private Matrix centerCropMatrix() { |
| int imageWidth = mImage.getIntrinsicWidth(); |
| int imageViewWidth = mImageView.getWidth(); |
| float scaleX = ((float) imageViewWidth) / imageWidth; |
| |
| int imageHeight = mImage.getIntrinsicHeight(); |
| int imageViewHeight = mImageView.getHeight(); |
| float scaleY = ((float) imageViewHeight) / imageHeight; |
| |
| float maxScale = Math.max(scaleX, scaleY); |
| |
| float width = imageWidth * maxScale; |
| float height = imageHeight * maxScale; |
| int tx = Math.round((imageViewWidth - width) / 2f); |
| int ty = Math.round((imageViewHeight - height) / 2f); |
| |
| Matrix matrix = new Matrix(); |
| matrix.postScale(maxScale, maxScale); |
| matrix.postTranslate(tx, ty); |
| return matrix; |
| } |
| |
| private Matrix fitCenterMatrix() { |
| int imageWidth = mImage.getIntrinsicWidth(); |
| int imageViewWidth = mImageView.getWidth(); |
| float scaleX = ((float) imageViewWidth) / imageWidth; |
| |
| int imageHeight = mImage.getIntrinsicHeight(); |
| int imageViewHeight = mImageView.getHeight(); |
| float scaleY = ((float) imageViewHeight) / imageHeight; |
| |
| float minScale = Math.min(scaleX, scaleY); |
| |
| float width = imageWidth * minScale; |
| float height = imageHeight * minScale; |
| float tx = (imageViewWidth - width) / 2f; |
| float ty = (imageViewHeight - height) / 2f; |
| |
| Matrix matrix = new Matrix(); |
| matrix.postScale(minScale, minScale); |
| matrix.postTranslate(tx, ty); |
| return matrix; |
| } |
| |
| private Matrix fitStartMatrix() { |
| int imageWidth = mImage.getIntrinsicWidth(); |
| int imageViewWidth = mImageView.getWidth(); |
| float scaleX = ((float) imageViewWidth) / imageWidth; |
| |
| int imageHeight = mImage.getIntrinsicHeight(); |
| int imageViewHeight = mImageView.getHeight(); |
| float scaleY = ((float) imageViewHeight) / imageHeight; |
| |
| float minScale = Math.min(scaleX, scaleY); |
| |
| Matrix matrix = new Matrix(); |
| matrix.postScale(minScale, minScale); |
| return matrix; |
| } |
| |
| private Matrix fitEndMatrix() { |
| int imageWidth = mImage.getIntrinsicWidth(); |
| int imageViewWidth = mImageView.getWidth(); |
| float scaleX = ((float) imageViewWidth) / imageWidth; |
| |
| int imageHeight = mImage.getIntrinsicHeight(); |
| int imageViewHeight = mImageView.getHeight(); |
| float scaleY = ((float) imageViewHeight) / imageHeight; |
| |
| float minScale = Math.min(scaleX, scaleY); |
| |
| float width = imageWidth * minScale; |
| float height = imageHeight * minScale; |
| float tx = imageViewWidth - width; |
| float ty = imageViewHeight - height; |
| |
| Matrix matrix = new Matrix(); |
| matrix.postScale(minScale, minScale); |
| matrix.postTranslate(tx, ty); |
| return matrix; |
| } |
| |
| private void verifyMatrixMatches(Matrix expected, Matrix matrix) { |
| if (expected == null) { |
| assertNull(matrix); |
| return; |
| } |
| assertNotNull(matrix); |
| float[] expectedValues = new float[9]; |
| expected.getValues(expectedValues); |
| |
| float[] values = new float[9]; |
| matrix.getValues(values); |
| |
| for (int i = 0; i < values.length; i++) { |
| final float expectedValue = expectedValues[i]; |
| final float value = values[i]; |
| assertEquals("Value [" + i + "]", expectedValue, value, 0.01f); |
| } |
| } |
| |
| private void transformImage(ImageView.ScaleType startScale, final ImageView.ScaleType endScale) |
| throws Throwable { |
| final ImageView imageView = enterImageViewScene(startScale); |
| rule.runOnUiThread(new Runnable() { |
| @Override |
| public void run() { |
| TransitionManager.beginDelayedTransition(mRoot, mChangeImageTransform); |
| imageView.setScaleType(endScale); |
| } |
| }); |
| waitForStart(); |
| verify(mListener, (startScale == endScale) ? times(1) : never()) |
| .onTransitionEnd(any(Transition.class)); |
| waitForEnd(); |
| } |
| |
| private ImageView enterImageViewScene(final ImageView.ScaleType scaleType) throws Throwable { |
| enterScene(R.layout.scene4); |
| final ViewGroup container = (ViewGroup) rule.getActivity().findViewById(R.id.holder); |
| final ImageView[] imageViews = new ImageView[1]; |
| rule.runOnUiThread(new Runnable() { |
| @Override |
| public void run() { |
| mImageView = new ImageView(rule.getActivity()); |
| mImage = ActivityCompat.getDrawable(rule.getActivity(), |
| android.R.drawable.ic_media_play); |
| mImageView.setImageDrawable(mImage); |
| mImageView.setScaleType(scaleType); |
| imageViews[0] = mImageView; |
| container.addView(mImageView); |
| ViewGroup.LayoutParams layoutParams = mImageView.getLayoutParams(); |
| DisplayMetrics metrics = rule.getActivity().getResources().getDisplayMetrics(); |
| float size = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 50, metrics); |
| layoutParams.width = Math.round(size); |
| layoutParams.height = Math.round(size * 2); |
| mImageView.setLayoutParams(layoutParams); |
| } |
| }); |
| InstrumentationRegistry.getInstrumentation().waitForIdleSync(); |
| return imageViews[0]; |
| } |
| |
| private class CaptureMatrix extends ChangeImageTransform { |
| |
| @Override |
| public Animator createAnimator(@NonNull ViewGroup sceneRoot, TransitionValues startValues, |
| TransitionValues endValues) { |
| Animator animator = super.createAnimator(sceneRoot, startValues, endValues); |
| assertNotNull(animator); |
| animator.addListener(new CaptureMatrixListener((ImageView) endValues.view)); |
| return animator; |
| } |
| |
| } |
| |
| private class CaptureMatrixListener extends AnimatorListenerAdapter { |
| |
| private final ImageView mImageView; |
| |
| CaptureMatrixListener(ImageView view) { |
| mImageView = view; |
| } |
| |
| @Override |
| public void onAnimationStart(Animator animation) { |
| mStartMatrix = copyMatrix(); |
| } |
| |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| mEndMatrix = copyMatrix(); |
| } |
| |
| private Matrix copyMatrix() { |
| Matrix matrix = mImageView.getImageMatrix(); |
| if (matrix != null) { |
| matrix = new Matrix(matrix); |
| } |
| return matrix; |
| } |
| |
| } |
| |
| } |