android.view.MotionEvent.getHistorySize()方法的使用及代码示例

x33g5p2x  于2022-01-24 转载在 其他  
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本文整理了Java中android.view.MotionEvent.getHistorySize()方法的一些代码示例，展示了MotionEvent.getHistorySize()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。MotionEvent.getHistorySize()方法的具体详情如下：
包路径：android.view.MotionEvent
类名称：MotionEvent
方法名：getHistorySize

MotionEvent.getHistorySize介绍

暂无

代码示例

代码示例来源：origin: EverythingMe/overscroll-decor

public boolean init(View view, MotionEvent event) {
    // We must have history available to calc the dx. Normally it's there - if it isn't temporarily,
    // we declare the event 'invalid' and expect it in consequent events.
    if (event.getHistorySize() == 0) {
      return false;
    }
    // Allow for counter-orientation-direction operations (e.g. item swiping) to run fluently.
    final float dy = event.getY(0) - event.getHistoricalY(0, 0);
    final float dx = event.getX(0) - event.getHistoricalX(0, 0);
    if (Math.abs(dx) > Math.abs(dy)) {
      return false;
    }
    mAbsOffset = view.getTranslationY();
    mDeltaOffset = dy;
    mDir = mDeltaOffset > 0;
    return true;
  }
}

代码示例来源：origin: EverythingMe/overscroll-decor

public boolean init(View view, MotionEvent event) {
    // We must have history available to calc the dx. Normally it's there - if it isn't temporarily,
    // we declare the event 'invalid' and expect it in consequent events.
    if (event.getHistorySize() == 0) {
      return false;
    }
    // Allow for counter-orientation-direction operations (e.g. item swiping) to run fluently.
    final float dy = event.getY(0) - event.getHistoricalY(0, 0);
    final float dx = event.getX(0) - event.getHistoricalX(0, 0);
    if (Math.abs(dx) < Math.abs(dy)) {
      return false;
    }
    mAbsOffset = view.getTranslationX();
    mDeltaOffset = dx;
    mDir = mDeltaOffset > 0;
    return true;
  }
}

代码示例来源：origin: EverythingMe/overscroll-decor

protected MotionEvent createShortUpwardsMoveEvent() {
  MotionEvent event = mock(MotionEvent.class);
  when(event.getAction()).thenReturn(MotionEvent.ACTION_MOVE);
  when(event.getX()).thenReturn(200f);
  when(event.getY()).thenReturn(100f);
  when(event.getX(0)).thenReturn(200f);
  when(event.getY(0)).thenReturn(100f);
  when(event.getHistorySize()).thenReturn(1);
  when(event.getHistoricalX(eq(0))).thenReturn(220f);
  when(event.getHistoricalY(eq(0))).thenReturn(120f);
  when(event.getHistoricalX(eq(0), eq(0))).thenReturn(220f);
  when(event.getHistoricalY(eq(0), eq(0))).thenReturn(120f);
  return event;
}

代码示例来源：origin: EverythingMe/overscroll-decor

protected MotionEvent createLongRightMoveEvent() {
  MotionEvent event = mock(MotionEvent.class);
  when(event.getAction()).thenReturn(MotionEvent.ACTION_MOVE);
  when(event.getX()).thenReturn(150f);
  when(event.getY()).thenReturn(250f);
  when(event.getX(0)).thenReturn(150f);
  when(event.getY(0)).thenReturn(250f);
  when(event.getHistorySize()).thenReturn(1);
  when(event.getHistoricalX(eq(0))).thenReturn(100f);
  when(event.getHistoricalY(eq(0))).thenReturn(200f);
  when(event.getHistoricalX(eq(0), eq(0))).thenReturn(100f);
  when(event.getHistoricalY(eq(0), eq(0))).thenReturn(200f);
  return event;
}

代码示例来源：origin: EverythingMe/overscroll-decor

protected MotionEvent createShortLeftMoveEvent() {
  MotionEvent event = mock(MotionEvent.class);
  when(event.getAction()).thenReturn(MotionEvent.ACTION_MOVE);
  when(event.getX()).thenReturn(100f);
  when(event.getY()).thenReturn(200f);
  when(event.getX(0)).thenReturn(100f);
  when(event.getY(0)).thenReturn(200f);
  when(event.getHistorySize()).thenReturn(1);
  when(event.getHistoricalX(eq(0))).thenReturn(120f);
  when(event.getHistoricalY(eq(0))).thenReturn(220f);
  when(event.getHistoricalX(eq(0), eq(0))).thenReturn(120f);
  when(event.getHistoricalY(eq(0), eq(0))).thenReturn(220f);
  return event;
}

代码示例来源：origin: EverythingMe/overscroll-decor

protected MotionEvent createLongDownwardsMoveEvent() {
  MotionEvent event = mock(MotionEvent.class);
  when(event.getAction()).thenReturn(MotionEvent.ACTION_MOVE);
  when(event.getX()).thenReturn(250f);
  when(event.getY()).thenReturn(150f);
  when(event.getX(0)).thenReturn(250f);
  when(event.getY(0)).thenReturn(150f);
  when(event.getHistorySize()).thenReturn(1);
  when(event.getHistoricalX(eq(0))).thenReturn(200f);
  when(event.getHistoricalY(eq(0))).thenReturn(100f);
  when(event.getHistoricalX(eq(0), eq(0))).thenReturn(200f);
  when(event.getHistoricalY(eq(0), eq(0))).thenReturn(100f);
  return event;
}

代码示例来源：origin: EverythingMe/overscroll-decor

protected MotionEvent createShortDownwardsMoveEvent() {
  MotionEvent event = mock(MotionEvent.class);
  when(event.getAction()).thenReturn(MotionEvent.ACTION_MOVE);
  when(event.getX()).thenReturn(200f);
  when(event.getY()).thenReturn(100f);
  when(event.getX(0)).thenReturn(200f);
  when(event.getY(0)).thenReturn(100f);
  when(event.getHistorySize()).thenReturn(1);
  when(event.getHistoricalX(eq(0))).thenReturn(190f);
  when(event.getHistoricalY(eq(0))).thenReturn(80f);
  when(event.getHistoricalX(eq(0), eq(0))).thenReturn(190f);
  when(event.getHistoricalY(eq(0), eq(0))).thenReturn(80f);
  return event;
}

代码示例来源：origin: EverythingMe/overscroll-decor

protected MotionEvent createLongUpwardsMoveEvent() {
  MotionEvent event = mock(MotionEvent.class);
  when(event.getAction()).thenReturn(MotionEvent.ACTION_MOVE);
  when(event.getX()).thenReturn(200f);
  when(event.getY()).thenReturn(100f);
  when(event.getX(0)).thenReturn(200f);
  when(event.getY(0)).thenReturn(100f);
  when(event.getHistorySize()).thenReturn(1);
  when(event.getHistoricalX(eq(0))).thenReturn(250f);
  when(event.getHistoricalY(eq(0))).thenReturn(150f);
  when(event.getHistoricalX(eq(0), eq(0))).thenReturn(250f);
  when(event.getHistoricalY(eq(0), eq(0))).thenReturn(150f);
  return event;
}

代码示例来源：origin: EverythingMe/overscroll-decor

protected MotionEvent createShortRightMoveEvent() {
  MotionEvent event = mock(MotionEvent.class);
  when(event.getAction()).thenReturn(MotionEvent.ACTION_MOVE);
  when(event.getX()).thenReturn(100f);
  when(event.getY()).thenReturn(200f);
  when(event.getX(0)).thenReturn(100f);
  when(event.getY(0)).thenReturn(200f);
  when(event.getHistorySize()).thenReturn(1);
  when(event.getHistoricalX(eq(0))).thenReturn(80f);
  when(event.getHistoricalY(eq(0))).thenReturn(190f);
  when(event.getHistoricalX(eq(0), eq(0))).thenReturn(80f);
  when(event.getHistoricalY(eq(0), eq(0))).thenReturn(190f);
  return event;
}

代码示例来源：origin: EverythingMe/overscroll-decor

protected MotionEvent createLongLeftMoveEvent() {
  MotionEvent event = mock(MotionEvent.class);
  when(event.getAction()).thenReturn(MotionEvent.ACTION_MOVE);
  when(event.getX()).thenReturn(50f);
  when(event.getY()).thenReturn(150f);
  when(event.getX(0)).thenReturn(50f);
  when(event.getY(0)).thenReturn(150f);
  when(event.getHistorySize()).thenReturn(1);
  when(event.getHistoricalX(eq(0))).thenReturn(100f);
  when(event.getHistoricalY(eq(0))).thenReturn(200f);
  when(event.getHistoricalX(eq(0), eq(0))).thenReturn(100f);
  when(event.getHistoricalY(eq(0), eq(0))).thenReturn(200f);
  return event;
}

代码示例来源：origin: seven332/EhViewer

final int historySize = event.getHistorySize();
mTmpInvalidateRect.setEmpty();
boolean invalidateNow = false;

代码示例来源：origin: tumblr/Backboard

if (event.getHistorySize() > 0) {
  final float deltaX = event.getHistoricalX(event.getHistorySize() - 1) - event.getX();
  final float deltaY = event.getHistoricalY(event.getHistorySize() - 1) - event.getY();

代码示例来源：origin: tumblr/Backboard

@Override
public void imitate(final View view, @NonNull final MotionEvent event) {
  final float viewValue = mProperty.getValue(view);
  final float eventValue = mProperty.getValue(event);
  mOffset = mProperty.getOffset(view);
  if (event.getHistorySize() > 0) {
    final float historicalValue = mProperty.getOldestValue(event);
    imitate(viewValue + mOffset, eventValue, eventValue - historicalValue, event);
  } else {
    imitate(viewValue + mOffset, eventValue, 0, event);
  }
}

代码示例来源：origin: libgdx/libgdx

if(controller != null) {
  synchronized(eventQueue) {
    final int historySize = motionEvent.getHistorySize();

代码示例来源：origin: tumblr/Backboard

if (event.getHistorySize() > 0) {
  mime(offset, value, delta,
      event.getEventTime() - event.getHistoricalEventTime(0), event);

代码示例来源：origin: ankidroid/Anki-Android

case MotionEvent.ACTION_MOVE:
  if (mCurrentlyDrawing) {
    for (int i = 0; i < event.getHistorySize(); i++) {
      drawAlong(event.getHistoricalX(i), event.getHistoricalY(i));

代码示例来源：origin: weexteam/weex-hackernews

/**
 * Create a list of event for {@link com.taobao.weex.WXSDKInstance#fireEvent(String, String, Map, Map)}.
 * As there is a batch mechanism in MotionEvent, so this method returns a list.
 * @param motionEvent motionEvent, which contains all pointers event in a period of time
 * @return List of Map, which contains touch object.
 */
private List<Map<String, Object>> createMultipleFireEventParam(MotionEvent motionEvent,String state) {
 List<Map<String, Object>> list = new ArrayList<>(motionEvent.getHistorySize() + 1);
 list.addAll(getHistoricalEvents(motionEvent));
 list.add(createFireEventParam(motionEvent, CUR_EVENT, state));
 return list;
}

代码示例来源：origin: stackoverflow.com

float getDistance(float startX, float startY, MotionEvent ev) {
  float distanceSum = 0;
  final int historySize = ev.getHistorySize();
  for (int h = 0; h < historySize; h++) {
    // historical point
    float hx = ev.getHistoricalX(0, h);
    float hy = ev.getHistoricalY(0, h);
    // distance between startX,startY and historical point
    float dx = (hx - startX);
    float dy = (hy - startY);
    distanceSum += Math.sqrt(dx * dx + dy * dy);
    // make historical point the start point for next loop iteration
    startX = hx;
    startY = hy;
  }
  // add distance from last historical point to event's point
  float dx = (ev.getX(0) - startX);
  float dy = (ev.getY(0) - startY);
  distanceSum += Math.sqrt(dx * dx + dy * dy);
  return distanceSum;
}

代码示例来源：origin: JasonQS/Anti-recall

private void initBottomNavigationBar(ScrollView view) {
  // 底部navigation bar的show hide
  view.setOnTouchListener((v, event) -> {
    NavigationTabBar navigationTabBar = getActivity().findViewById(R.id.ntb);
    switch (event.getAction()) {
      case MotionEvent.ACTION_MOVE:
        if (event.getHistorySize() < 1)
          return false;
        float y = event.getY();
        float historicalY = event.getHistoricalY(event.getHistorySize() - 1);
        if (y > historicalY)
          navigationTabBar.show();
        else
          navigationTabBar.hide();
    }
    return false;
  });
}

代码示例来源：origin: robolectric/robolectric

.of(other.getOrientation(i));
check("getHistorySize()").that(actual().getHistorySize()).isEqualTo(other.getHistorySize());
for (int i = 0; i < actual().getHistorySize(); i++) {
 check("getHistoricalX(%s)", i).that(actual().getX(i)).isWithin(tolerance).of(other.getX(i));
 check("getHistoricalY(%s)", i)

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