design/tests/src/android/support/design/testutils/SwipeUtils.java

/*
 * Copyright (C) 2016 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.design.testutils;

import android.support.test.espresso.action.CoordinatesProvider;
import android.support.test.espresso.action.GeneralSwipeAction;
import android.support.test.espresso.action.Press;
import android.support.test.espresso.action.Swipe;
import android.view.View;

public class SwipeUtils {

    public static GeneralSwipeAction swipeUp(final int swipeX,
            final int swipeStartY, final int swipeAmountY) {
        return new GeneralSwipeAction(
                Swipe.SLOW,
                new CoordinatesProvider() {
                    @Override
                    public float[] calculateCoordinates(View view) {
                        return new float[] { swipeX, swipeStartY };
                    }
                },
                new CoordinatesProvider() {
                    @Override
                    public float[] calculateCoordinates(View view) {
                        return new float[] { swipeX, swipeStartY - swipeAmountY };
                    }
                },
                Press.FINGER
        );
    }

    public static GeneralSwipeAction swipeDown(final int swipeX,
            final int swipeStartY, final int swipeAmountY) {
        return new GeneralSwipeAction(
                Swipe.SLOW,
                new CoordinatesProvider() {
                    @Override
                    public float[] calculateCoordinates(View view) {
                        return new float[] { swipeX, swipeStartY };
                    }
                },
                new CoordinatesProvider() {
                    @Override
                    public float[] calculateCoordinates(View view) {
                        return new float[] { swipeX, swipeStartY + swipeAmountY };
                    }
                },
                Press.FINGER
        );
    }


}