Simulate touching the center of a view and dragging to the top of the screen. - Android User Interface

Android examples for User Interface:Touch Event

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Description

Simulate touching the center of a view and dragging to the top of the screen.

Demo Code

/*/* w ww  .  ja  va  2 s .com*/
 * Copyright (C) 2007 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.
 */
import android.app.Activity;
import android.app.Instrumentation;
import android.graphics.Point;
import android.os.SystemClock;
import android.view.Display;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;

public class Main{
    /**
     * Simulate touching the center of a view and dragging to the top of the screen.
     * 
     * @param test The test case that is being run
     * @param v The view that should be dragged
     *
     * @deprecated {@link android.test.ActivityInstrumentationTestCase} is deprecated in favor of
     * {@link android.test.ActivityInstrumentationTestCase2}, which provides more options for
     * configuring the Activity under test
     */
    @Deprecated
    public static void dragViewToTop(ActivityInstrumentationTestCase test,
            View v) {
        dragViewToTop((InstrumentationTestCase) test, v, 4);
    }
    /**
     * Simulate touching the center of a view and dragging to the top of the screen.
     * 
     * @param test The test case that is being run
     * @param v The view that should be dragged
     * @param stepCount How many move steps to include in the drag
     *
     * @deprecated {@link android.test.ActivityInstrumentationTestCase} is deprecated in favor of
     * {@link android.test.ActivityInstrumentationTestCase2}, which provides more options for
     * configuring the Activity under test
     */
    @Deprecated
    public static void dragViewToTop(ActivityInstrumentationTestCase test,
            View v, int stepCount) {
        dragViewToTop((InstrumentationTestCase) test, v, stepCount);
    }
    /**
     * Simulate touching the center of a view and dragging to the top of the screen.
     * 
     * @param test The test case that is being run
     * @param v The view that should be dragged
     */
    public static void dragViewToTop(InstrumentationTestCase test, View v) {
        dragViewToTop(test, v, 4);
    }
    /**
     * Simulate touching the center of a view and dragging to the top of the screen.
     * 
     * @param test The test case that is being run
     * @param v The view that should be dragged
     * @param stepCount How many move steps to include in the drag
     */
    public static void dragViewToTop(InstrumentationTestCase test, View v,
            int stepCount) {
        int[] xy = new int[2];
        v.getLocationOnScreen(xy);

        final int viewWidth = v.getWidth();
        final int viewHeight = v.getHeight();

        final float x = xy[0] + (viewWidth / 2.0f);
        float fromY = xy[1] + (viewHeight / 2.0f);
        float toY = 0;

        drag(test, x, x, fromY, toY, stepCount);
    }
    /**
     * Simulate touching a specific location and dragging to a new location.
     * 
     * @param test The test case that is being run
     * @param fromX X coordinate of the initial touch, in screen coordinates
     * @param toX Xcoordinate of the drag destination, in screen coordinates
     * @param fromY X coordinate of the initial touch, in screen coordinates
     * @param toY Y coordinate of the drag destination, in screen coordinates
     * @param stepCount How many move steps to include in the drag
     *
     * @deprecated {@link android.test.ActivityInstrumentationTestCase} is deprecated in favor of
     * {@link android.test.ActivityInstrumentationTestCase2}, which provides more options for
     * configuring the Activity under test
     */
    @Deprecated
    public static void drag(ActivityInstrumentationTestCase test,
            float fromX, float toX, float fromY, float toY, int stepCount) {
        drag((InstrumentationTestCase) test, fromX, toX, fromY, toY,
                stepCount);
    }
    /**
     * Simulate touching a specific location and dragging to a new location.
     * 
     * @param test The test case that is being run
     * @param fromX X coordinate of the initial touch, in screen coordinates
     * @param toX Xcoordinate of the drag destination, in screen coordinates
     * @param fromY X coordinate of the initial touch, in screen coordinates
     * @param toY Y coordinate of the drag destination, in screen coordinates
     * @param stepCount How many move steps to include in the drag
     */
    public static void drag(InstrumentationTestCase test, float fromX,
            float toX, float fromY, float toY, int stepCount) {
        Instrumentation inst = test.getInstrumentation();

        long downTime = SystemClock.uptimeMillis();
        long eventTime = SystemClock.uptimeMillis();

        float y = fromY;
        float x = fromX;

        float yStep = (toY - fromY) / stepCount;
        float xStep = (toX - fromX) / stepCount;

        MotionEvent event = MotionEvent.obtain(downTime, eventTime,
                MotionEvent.ACTION_DOWN, x, y, 0);
        inst.sendPointerSync(event);
        for (int i = 0; i < stepCount; ++i) {
            y += yStep;
            x += xStep;
            eventTime = SystemClock.uptimeMillis();
            event = MotionEvent.obtain(downTime, eventTime,
                    MotionEvent.ACTION_MOVE, x, y, 0);
            inst.sendPointerSync(event);
        }

        eventTime = SystemClock.uptimeMillis();
        event = MotionEvent.obtain(downTime, eventTime,
                MotionEvent.ACTION_UP, x, y, 0);
        inst.sendPointerSync(event);
        inst.waitForIdleSync();
    }
}

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