How to use

onInterceptTouchEvent

method

in

androidx.viewpager.widget.ViewPager

  @Override
  public boolean onInterceptTouchEvent(MotionEvent ev) {
    try {
      return super.onInterceptTouchEvent(ev);
    } catch (IllegalArgumentException e) {
      return false;
    }
  }
}

@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
  if (this.enabled) {
    return super.onInterceptTouchEvent(event);
  }
  return false;
}

private void passEventToViewPager(@NonNull MotionEvent event) {
  if (viewPager == null) {
    return;
  }
  MotionEvent fixedEvent = obtainOnePointerEvent(event);
  fixedEvent.setLocation(lastViewPagerEventX, 0f);
  if (isViewPagerInterceptedScroll) {
    viewPager.onTouchEvent(fixedEvent);
  } else {
    isViewPagerInterceptedScroll = viewPager.onInterceptTouchEvent(fixedEvent);
  }
  // If ViewPager intercepted touch it will settle itself automatically,
  // but if touch was not intercepted we should settle it manually
  if (!isViewPagerInterceptedScroll && hasViewPagerX()) {
    settleViewPagerIfFinished(viewPager, event);
  }
  // Hack: ViewPager has bug when endFakeDrag() does not work properly. But we need to ensure
  // ViewPager is not in fake drag mode after settleViewPagerIfFinished()
  try {
    if (viewPager != null && viewPager.isFakeDragging()) {
      viewPager.endFakeDrag();
    }
  } catch (Exception ignored) {
  }
  fixedEvent.recycle();
}

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
  return mSwipeEnabled && super.onInterceptTouchEvent(ev);
}

@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
  return mIsSwipeable && super.onInterceptTouchEvent(event);
}

@Override public boolean onInterceptTouchEvent(MotionEvent ev) {
 return !locked && super.onInterceptTouchEvent(ev);
}

public boolean onInterceptTouchEvent(final MotionEvent event) {
  if (isEnabled()) {
    try {
      return super.onInterceptTouchEvent(event);
    } catch (final Throwable e) {
      // if you read this: don't worry! just close this class and do
      // something else!
    }
  }
  return false;
}

@Override
public final boolean onInterceptTouchEvent(final MotionEvent event) {
  return isSwipeEnabled() && super.onInterceptTouchEvent(event);
}