Как сгенерировать масштаб/жест щепотку для тестирования для Android

Ответ 1

ну, я нашел проблему.

ВОПРОС:

При использовании API get() мы должны установить давление и размер точек в каждом событии.

Для

obtain(long, long, int, int, android.view.MotionEvent.PointerProperties[], 
android.view.MotionEvent.PointerCoords[], int, int, float, float, int, int, int, int)

PointerCoords [], мы должны установить давление и размер равным 1, значения по умолчанию равны 0.

Для

public static MotionEvent obtain (long downTime, long eventTime, int action,
         float x, float y, int metaState)

     Create a new MotionEvent, filling in a subset of the basic motion values. 
    Those not specified here are: device id (always 0), pressure and size (always 1), 
x and y precision (always 1), and edgeFlags (always 0).

since the default pressure and size are 1, so we don't need to set them.

Мои советы по созданию жестов:

1. после реальной последовательности жестов, так как мы хотим имитировать реальные жесты

• переопределить onTouchEvent(), чтобы проверить реальные события, полученные выражение. Эти события могут также использоваться для сравнения реальных пользовательские события прикосновения и созданные события касания. Возьмите браузер для Пример:

  a) @Override public boolean onTouchEvent (событие MotionEvent) {   Log.i( "WebView", event.toString() + event.getAction()); boolean rt  = super.onTouchEvent(событие); return rt; }

• вручную коснитесь экрана, чтобы получить реальную последовательность жестов из onTouchEvent() в a). Мы можем следить за последовательностью событий при генерации событий. - Если мы не будем следовать последовательности событий жестов, инструментальные события могут быть отклонены.

• Ниже приведена допустимая последовательность событий жесты масштабирования (downtime одинаково для всех событий)

  я. ACTION_DOWN одной начальной точки

  II. ACTION_POINTER_2_DOWN двух стартовых точек

  iii.ACTION_MOVE двух средних точек

  IV. ACTION_POINTER_2_UP из двух конечных точек

  v. ACTION_UP одной конечной точки

2. используйте API MotionEvent.obtain правильно

• Существует два наиболее используемых API get().

public static MotionEvent get (long downTime, long EventTime, int action,        float x, float y, int metaState)

и

public static MotionEvent get (long, long, int, int, android.view.MotionEvent.PointerProperties [], android.view.MotionEvent.PointerCoords [], int, int, float, float, int, int, int, int)

Первый обычно используется для одноточечных жестов, таких как fling, scroll, click и т.д. Параметры (давление, размер, xPresion, yPresion) для этой функции установлены на 1.

И второй является более общим и может использоваться для генерации событий с несколькими нажатиями. В то время как для второго, мы должны установить давление, размер в pointerCoords каждой точки касания до 1.

Вот пример генерации жесты масштабирования:

public static void generateZoomGesture(Instrumentation inst,
        long startTime, boolean ifMove, GestureInfo.Point startPoint1,
        GestureInfo.Point startPoint2, GestureInfo.Point endPoint1,
        GestureInfo.Point endPoint2, int duration) {

    if (inst == null || startPoint1 == null
            || (ifMove && endPoint1 == null)) {
        return;
    }

    long eventTime = startTime;
    long downTime = startTime;
    MotionEvent event;
    float eventX1, eventY1, eventX2, eventY2;

    eventX1 = startPoint1.x;
    eventY1 = startPoint1.y;
    eventX2 = startPoint2.x;
    eventY2 = startPoint2.y;

    // specify the property for the two touch points
    PointerProperties[] properties = new PointerProperties[2];
    PointerProperties pp1 = new PointerProperties();
    pp1.id = 0;
    pp1.toolType = MotionEvent.TOOL_TYPE_FINGER;
    PointerProperties pp2 = new PointerProperties();
    pp2.id = 1;
    pp2.toolType = MotionEvent.TOOL_TYPE_FINGER;

    properties[0] = pp1;
    properties[1] = pp2;

    //specify the coordinations of the two touch points
    //NOTE: you MUST set the pressure and size value, or it doesn't work
    PointerCoords[] pointerCoords = new PointerCoords[2];
    PointerCoords pc1 = new PointerCoords();
    pc1.x = eventX1;
    pc1.y = eventY1;
    pc1.pressure = 1;
    pc1.size = 1;
    PointerCoords pc2 = new PointerCoords();
    pc2.x = eventX2;
    pc2.y = eventY2;
    pc2.pressure = 1;
    pc2.size = 1;
    pointerCoords[0] = pc1;
    pointerCoords[1] = pc2;

    //////////////////////////////////////////////////////////////
    // events sequence of zoom gesture
    // 1. send ACTION_DOWN event of one start point
    // 2. send ACTION_POINTER_2_DOWN of two start points
    // 3. send ACTION_MOVE of two middle points
    // 4. repeat step 3 with updated middle points (x,y),
    //      until reach the end points
    // 5. send ACTION_POINTER_2_UP of two end points
    // 6. send ACTION_UP of one end point
    //////////////////////////////////////////////////////////////

    // step 1
    event = MotionEvent.obtain(downTime, eventTime, 
                MotionEvent.ACTION_DOWN, 1, properties, 
                pointerCoords, 0,  0, 1, 1, 0, 0, 0, 0 );

    inst.sendPointerSync(event);

    //step 2
    event = MotionEvent.obtain(downTime, eventTime, 
                MotionEvent.ACTION_POINTER_2_DOWN, 2, 
                properties, pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0);

    inst.sendPointerSync(event);

    //step 3, 4
    if (ifMove) {
        int moveEventNumber = 1;
        moveEventNumber = duration / EVENT_MIN_INTERVAL;

        float stepX1, stepY1, stepX2, stepY2;

        stepX1 = (endPoint1.x - startPoint1.x) / moveEventNumber;
        stepY1 = (endPoint1.y - startPoint1.y) / moveEventNumber;
        stepX2 = (endPoint2.x - startPoint2.x) / moveEventNumber;
        stepY2 = (endPoint2.y - startPoint2.y) / moveEventNumber;

        for (int i = 0; i < moveEventNumber; i++) {
            // update the move events
            eventTime += EVENT_MIN_INTERVAL;
            eventX1 += stepX1;
            eventY1 += stepY1;
            eventX2 += stepX2;
            eventY2 += stepY2;

            pc1.x = eventX1;
            pc1.y = eventY1;
            pc2.x = eventX2;
            pc2.y = eventY2;

            pointerCoords[0] = pc1;
            pointerCoords[1] = pc2;

            event = MotionEvent.obtain(downTime, eventTime,
                        MotionEvent.ACTION_MOVE, 2, properties, 
                        pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0);

            inst.sendPointerSync(event);
        }
    }

    //step 5
    pc1.x = endPoint1.x;
    pc1.y = endPoint1.y;
    pc2.x = endPoint2.x;
    pc2.y = endPoint2.y;
    pointerCoords[0] = pc1;
    pointerCoords[1] = pc2;

    eventTime += EVENT_MIN_INTERVAL;
    event = MotionEvent.obtain(downTime, eventTime,
                MotionEvent.ACTION_POINTER_2_UP, 2, properties, 
                pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0);
    inst.sendPointerSync(event);

    // step 6
    eventTime += EVENT_MIN_INTERVAL;
    event = MotionEvent.obtain(downTime, eventTime, 
                MotionEvent.ACTION_UP, 1, properties, 
                pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0 );
    inst.sendPointerSync(event);
}

Ответ 2

Чтобы сделать вышеприведенный код работать с неустановленными константами, я использовал MotionEvent.ACTION_POINTER_DOWN + (pp2.id << MotionEvent.ACTION_POINTER_INDEX_SHIFT) вместо MotionEvent.ACTION_POINTER_2_DOWN

Поэтому мне пришлось заменить эту строку:

event = MotionEvent.obtain(downTime, eventTime,                 MotionEvent.ACTION_POINTER_2_DOWN, 2,                 свойства, pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0);

с

event = MotionEvent.obtain(downTime, eventTime,                     MotionEvent.ACTION_POINTER_DOWN + (pp2.id < MotionEvent.ACTION_POINTER_INDEX_SHIFT), 2,                     свойства, pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0);

Ответ 3

Как уже упоминалось в комментарии Täg, это можно использовать с Espresso. Вот мой код для этого в Espresso, на основе очень хорошего ответа от longchuan и формы обновления peetasan.

В тесте Espresso:

// Pinch out (to zoom in):
onView(withId(R.id.MyViewId)).perform(pinchOut());

Вспомогательные методы, которые включают хороший способ получить правильные координаты из представления, а также включают правильную обработку ошибок для uiController.injectMotionEvent(event):

public static ViewAction pinchOut() {
    return new ViewAction() {
        @Override
        public Matcher<View> getConstraints() {
            return ViewMatchers.isEnabled();
        }

        @Override
        public String getDescription() {
            return "Pinch out";
        }

        @Override
        public void perform(UiController uiController, View view) {
            Point middlePosition = getCenterPoint(view);

            final int startDelta = 0; // How far from the center point each finger should start
            final int endDelta = 500; // How far from the center point each finger should end (note: Be sure to have this large enough so that the gesture is recognized!)

            Point startPoint1 = new Point(middlePosition.x - startDelta, middlePosition.y);
            Point startPoint2 = new Point(middlePosition.x + startDelta, middlePosition.y);
            Point endPoint1 = new Point(middlePosition.x - endDelta, middlePosition.y);
            Point endPoint2 = new Point(middlePosition.x + endDelta, middlePosition.y);

            performPinch(uiController, startPoint1, startPoint2, endPoint1, endPoint2);
        }
    };
}

public static ViewAction pinchIn() {
    return new ViewAction() {
        @Override
        public Matcher<View> getConstraints() {
            return ViewMatchers.isEnabled();
        }

        @Override
        public String getDescription() {
            return "Pinch in";
        }

        @Override
        public void perform(UiController uiController, View view) {
            Point middlePosition = getCenterPoint(view);

            final int startDelta = 500; // How far from the center point each finger should start (note: Be sure to have this large enough so that the gesture is recognized!)
            final int endDelta = 0; // How far from the center point each finger should end

            Point startPoint1 = new Point(middlePosition.x - startDelta, middlePosition.y);
            Point startPoint2 = new Point(middlePosition.x + startDelta, middlePosition.y);
            Point endPoint1 = new Point(middlePosition.x - endDelta, middlePosition.y);
            Point endPoint2 = new Point(middlePosition.x + endDelta, middlePosition.y);

            performPinch(uiController, startPoint1, startPoint2, endPoint1, endPoint2);
        }
    };
}

@NonNull
private static Point getCenterPoint(View view) {
    int[] locationOnScreen = new int[2];
    view.getLocationOnScreen(locationOnScreen);
    float viewHeight = view.getHeight() * view.getScaleY();
    float viewWidth = view.getWidth() * view.getScaleX();
    return new Point(
            (int) (locationOnScreen[0] + viewWidth / 2),
            (int) (locationOnScreen[1] + viewHeight / 2));
}

private static void performPinch(UiController uiController, Point startPoint1, Point startPoint2, Point endPoint1, Point endPoint2) {
    final int duration = 500;
    final long eventMinInterval = 10;
    final long startTime = SystemClock.uptimeMillis();
    long eventTime = startTime;
    MotionEvent event;
    float eventX1, eventY1, eventX2, eventY2;

    eventX1 = startPoint1.x;
    eventY1 = startPoint1.y;
    eventX2 = startPoint2.x;
    eventY2 = startPoint2.y;

    // Specify the property for the two touch points
    MotionEvent.PointerProperties[] properties = new MotionEvent.PointerProperties[2];
    MotionEvent.PointerProperties pp1 = new MotionEvent.PointerProperties();
    pp1.id = 0;
    pp1.toolType = MotionEvent.TOOL_TYPE_FINGER;
    MotionEvent.PointerProperties pp2 = new MotionEvent.PointerProperties();
    pp2.id = 1;
    pp2.toolType = MotionEvent.TOOL_TYPE_FINGER;

    properties[0] = pp1;
    properties[1] = pp2;

    // Specify the coordinations of the two touch points
    // NOTE: you MUST set the pressure and size value, or it doesn't work
    MotionEvent.PointerCoords[] pointerCoords = new MotionEvent.PointerCoords[2];
    MotionEvent.PointerCoords pc1 = new MotionEvent.PointerCoords();
    pc1.x = eventX1;
    pc1.y = eventY1;
    pc1.pressure = 1;
    pc1.size = 1;
    MotionEvent.PointerCoords pc2 = new MotionEvent.PointerCoords();
    pc2.x = eventX2;
    pc2.y = eventY2;
    pc2.pressure = 1;
    pc2.size = 1;
    pointerCoords[0] = pc1;
    pointerCoords[1] = pc2;

    /*
     * Events sequence of zoom gesture:
     *
     * 1. Send ACTION_DOWN event of one start point
     * 2. Send ACTION_POINTER_DOWN of two start points
     * 3. Send ACTION_MOVE of two middle points
     * 4. Repeat step 3 with updated middle points (x,y), until reach the end points
     * 5. Send ACTION_POINTER_UP of two end points
     * 6. Send ACTION_UP of one end point
     */

    try {
        // Step 1
        event = MotionEvent.obtain(startTime, eventTime,
                MotionEvent.ACTION_DOWN, 1, properties,
                pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0);
        injectMotionEventToUiController(uiController, event);

        // Step 2
        event = MotionEvent.obtain(startTime, eventTime,
                MotionEvent.ACTION_POINTER_DOWN + (pp2.id << MotionEvent.ACTION_POINTER_INDEX_SHIFT), 2,
                properties, pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0);
        injectMotionEventToUiController(uiController, event);

        // Step 3, 4
        long moveEventNumber = duration / eventMinInterval;

        float stepX1, stepY1, stepX2, stepY2;

        stepX1 = (endPoint1.x - startPoint1.x) / moveEventNumber;
        stepY1 = (endPoint1.y - startPoint1.y) / moveEventNumber;
        stepX2 = (endPoint2.x - startPoint2.x) / moveEventNumber;
        stepY2 = (endPoint2.y - startPoint2.y) / moveEventNumber;

        for (int i = 0; i < moveEventNumber; i++) {
            // Update the move events
            eventTime += eventMinInterval;
            eventX1 += stepX1;
            eventY1 += stepY1;
            eventX2 += stepX2;
            eventY2 += stepY2;

            pc1.x = eventX1;
            pc1.y = eventY1;
            pc2.x = eventX2;
            pc2.y = eventY2;

            pointerCoords[0] = pc1;
            pointerCoords[1] = pc2;

            event = MotionEvent.obtain(startTime, eventTime,
                    MotionEvent.ACTION_MOVE, 2, properties,
                    pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0);
            injectMotionEventToUiController(uiController, event);
        }

        // Step 5
        pc1.x = endPoint1.x;
        pc1.y = endPoint1.y;
        pc2.x = endPoint2.x;
        pc2.y = endPoint2.y;
        pointerCoords[0] = pc1;
        pointerCoords[1] = pc2;

        eventTime += eventMinInterval;
        event = MotionEvent.obtain(startTime, eventTime,
                MotionEvent.ACTION_POINTER_UP + (pp2.id << MotionEvent.ACTION_POINTER_INDEX_SHIFT), 2, properties,
                pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0);
        injectMotionEventToUiController(uiController, event);

        // Step 6
        eventTime += eventMinInterval;
        event = MotionEvent.obtain(startTime, eventTime,
                MotionEvent.ACTION_UP, 1, properties,
                pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0);
        injectMotionEventToUiController(uiController, event);
    } catch (InjectEventSecurityException e) {
        throw new RuntimeException("Could not perform pinch", e);
    }
}

/**
 * Safely call uiController.injectMotionEvent(event): Detect any error and "convert" it to an
 * IllegalStateException
 */
private static void injectMotionEventToUiController(UiController uiController, MotionEvent event) throws InjectEventSecurityException {
    boolean injectEventSucceeded = uiController.injectMotionEvent(event);
    if (!injectEventSucceeded) {
        throw new IllegalStateException("Error performing event " + event);
    }
}