android.view.MotionEvent.getHistoricalX()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.getHistoricalX()方法的一些代码示例，展示了MotionEvent.getHistoricalX()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.getHistoricalX()方法的具体详情如下：
包路径：android.view.MotionEvent
类名称：MotionEvent
方法名：getHistoricalX

MotionEvent.getHistoricalX介绍

暂无

代码示例

代码示例来源：origin: tumblr/Backboard

/**
 * <i>Note that this method does not check the validity of</i> <code>index</code>.
 *
 * @param event
 *         the event to inspect
 * @param index
 *         the historical index (in {@link MotionEvent#getHistoricalX(int)} or {@link MotionEvent#getHistoricalY(int)})
 * @return the historical value that this property represents on the given
 * <code>MotionEvent</code>.
 */
public float getHistoricalValue(@Nullable final MotionEvent event, final int index) {
  if (event != null) {
    switch (this) {
    case X:
      return event.getHistoricalX(index);
    case Y:
      return event.getHistoricalY(index);
    default:
      return 0;
    }
  }
  return 0;
}

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 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 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 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: EverythingMe/overscroll-decor

@Test
public void onTouchMoveAction_dragLeftInRightEnd_overscrollLeft() throws Exception {
  // Arrange
  MotionEvent event = createShortLeftMoveEvent();
  when(mViewAdapter.isInAbsoluteStart()).thenReturn(false);
  when(mViewAdapter.isInAbsoluteEnd()).thenReturn(true);
  HorizontalOverScrollBounceEffectDecorator uut = getUUT();
  // Act
  final boolean ret = uut.onTouch(mView, event);
  // Assert
  final float expectedTransX = (event.getX() - event.getHistoricalX(0)) / DEFAULT_TOUCH_DRAG_MOVE_RATIO_FWD;
  verify(mView).setTranslationX(expectedTransX);
  verify(mView, never()).setTranslationY(anyFloat());
  assertTrue(ret);
  assertEquals(STATE_DRAG_END_SIDE, uut.getCurrentState());
  verify(mStateListener).onOverScrollStateChange(eq(uut), eq(STATE_IDLE), eq(STATE_DRAG_END_SIDE));
  verify(mUpdateListener).onOverScrollUpdate(eq(uut), eq(STATE_DRAG_END_SIDE), eq(expectedTransX));
}

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

@Test
public void onTouchMoveAction_dragRightInLeftEnd_overscrollRight() throws Exception {
  // Arrange
  MotionEvent event = createShortRightMoveEvent();
  when(mViewAdapter.isInAbsoluteStart()).thenReturn(true);
  when(mViewAdapter.isInAbsoluteEnd()).thenReturn(false);
  HorizontalOverScrollBounceEffectDecorator uut = getUUT();
  // Act
  final boolean ret = uut.onTouch(mView, event);
  // Assert
  final float expectedTransX = (event.getX() - event.getHistoricalX(0)) / DEFAULT_TOUCH_DRAG_MOVE_RATIO_FWD;
  verify(mView).setTranslationX(expectedTransX);
  verify(mView, never()).setTranslationY(anyFloat());
  assertTrue(ret);
  assertEquals(STATE_DRAG_START_SIDE, uut.getCurrentState());
  verify(mStateListener).onOverScrollStateChange(eq(uut), eq(STATE_IDLE), eq(STATE_DRAG_START_SIDE));
  verify(mUpdateListener).onOverScrollUpdate(eq(uut), eq(STATE_DRAG_START_SIDE), eq(expectedTransX));
}

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

@Test
public void onTouchMoveAction_2ndRightDragInLeftEnd_overscrollRightFurther() throws Exception {
  // Arrange
  // Bring UUT to a right-overscroll state
  MotionEvent event1 = createShortRightMoveEvent();
  when(mViewAdapter.isInAbsoluteStart()).thenReturn(true);
  when(mViewAdapter.isInAbsoluteEnd()).thenReturn(false);
  HorizontalOverScrollBounceEffectDecorator uut = getUUT();
  uut.onTouch(mView, event1);
  reset(mView);
  // Create 2nd right-drag event
  MotionEvent event2 = createLongRightMoveEvent();
  // Act
  final boolean ret = uut.onTouch(mView, event2);
  // Assert
  final float expectedTransX1 = (event1.getX() - event1.getHistoricalX(0)) / DEFAULT_TOUCH_DRAG_MOVE_RATIO_FWD;
  final float expectedTransX2 = (event2.getX() - event2.getHistoricalX(0)) / DEFAULT_TOUCH_DRAG_MOVE_RATIO_FWD;
  verify(mView).setTranslationX(expectedTransX2);
  verify(mView, never()).setTranslationY(anyFloat());
  assertTrue(ret);
  assertEquals(STATE_DRAG_START_SIDE, uut.getCurrentState());
  // State-change listener called only once?
  verify(mStateListener).onOverScrollStateChange(eq(uut), eq(STATE_IDLE), eq(STATE_DRAG_START_SIDE));
  verify(mStateListener).onOverScrollStateChange(eq(uut), anyInt(), anyInt());
  // Update-listener called exactly twice?
  verify(mUpdateListener).onOverScrollUpdate(eq(uut), eq(STATE_DRAG_START_SIDE), eq(expectedTransX1));
  verify(mUpdateListener).onOverScrollUpdate(eq(uut), eq(STATE_DRAG_START_SIDE), eq(expectedTransX2));
  verify(mUpdateListener, times(2)).onOverScrollUpdate(eq(uut), anyInt(), anyFloat());
}

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

@Test
public void onTouchMoveAction_2ndLeftDragInRightEnd_overscrollLeftFurther() throws Exception {
  // Arrange
  // Bring UUT to a left-overscroll state
  MotionEvent event1 = createShortLeftMoveEvent();
  when(mViewAdapter.isInAbsoluteStart()).thenReturn(false);
  when(mViewAdapter.isInAbsoluteEnd()).thenReturn(true);
  HorizontalOverScrollBounceEffectDecorator uut = getUUT();
  uut.onTouch(mView, event1);
  reset(mView);
  // Create 2nd left-drag event
  MotionEvent event2 = createLongLeftMoveEvent();
  // Act
  final boolean ret = uut.onTouch(mView, event2);
  // Assert
  final float expectedTransX1 = (event1.getX() - event1.getHistoricalX(0)) / DEFAULT_TOUCH_DRAG_MOVE_RATIO_FWD;
  final float expectedTransX2 = (event2.getX() - event2.getHistoricalX(0)) / DEFAULT_TOUCH_DRAG_MOVE_RATIO_FWD;
  verify(mView).setTranslationX(expectedTransX2);
  verify(mView, never()).setTranslationY(anyFloat());
  assertTrue(ret);
  assertEquals(STATE_DRAG_END_SIDE, uut.getCurrentState());
  // State-change listener called only once?
  verify(mStateListener).onOverScrollStateChange(eq(uut), eq(STATE_IDLE), eq(STATE_DRAG_END_SIDE));
  verify(mStateListener).onOverScrollStateChange(eq(uut), anyInt(), anyInt());
  // Update-listener called exactly twice?
  verify(mUpdateListener).onOverScrollUpdate(eq(uut), eq(STATE_DRAG_END_SIDE), eq(expectedTransX1));
  verify(mUpdateListener).onOverScrollUpdate(eq(uut), eq(STATE_DRAG_END_SIDE), eq(expectedTransX2));
  verify(mUpdateListener, times(2)).onOverScrollUpdate(eq(uut), anyInt(), anyFloat());
}

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

uut.onTouch(mView, eventMoveUp);
reset(mView);
float startTransX = (eventMoveUp.getX() - eventMoveUp.getHistoricalX(0)) / touchDragRatioFwd;
when(mView.getTranslationX()).thenReturn(startTransX);

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

uut.onTouch(mView, eventMoveRight);
reset(mView);
float startTransX = (eventMoveRight.getX() - eventMoveRight.getHistoricalX(0)) / touchDragRatioFwd;
when(mView.getTranslationX()).thenReturn(startTransX);

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

uut.onTouch(mView, eventMoveLeft);
reset(mView);
float startTransX = (eventMoveLeft.getX() - eventMoveLeft.getHistoricalX(0)) / touchDragRatioFwd;
when(mView.getTranslationX()).thenReturn(startTransX);

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

reset(mView);
float startTransX = (eventMoveLeft.getX() - eventMoveLeft.getHistoricalX(0)) / touchDragRatioFwd;
when(mView.getTranslationX()).thenReturn(startTransX);
float expectedTransX = startTransX + (eventMoveRight.getX() - eventMoveRight.getHistoricalX(0)) / touchDragRatioBck;
verify(mView).setTranslationX(expectedTransX);
verify(mView, never()).setTranslationY(anyFloat());

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

uut.onTouch(mView, eventMoveDown);
reset(mView);
float startTransX = (eventMoveDown.getX() - eventMoveDown.getHistoricalX(0)) / touchDragRatioFwd;
when(mView.getTranslationX()).thenReturn(startTransX);

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