@Override
  public boolean onInterceptTouchEvent(MotionEvent ev) {
  //键盘开 && 第一个scroll dy》0
  if(showSoftInput) {
    if(mVelocityTracker == null) {
      mVelocityTracker = VelocityTracker.obtain();
    }
    mVelocityTracker.addMovement(ev);
    switch (ev.getAction()) {
    case MotionEvent.ACTION_DOWN:
      downY = (int) ev.getY();
      showDispatchTouch = true;
      break;
    case MotionEvent.ACTION_MOVE:
      if(downY > ev.getY()) {
        showDispatchTouch = true;
      } else {
        showDispatchTouch = false;
        mVelocityTracker.computeCurrentVelocity(1000);
        if(mVelocityTracker.getYVelocity() > 200 && mContext instanceof ActivityReplyDetail) {
          ((ActivityReplyDetail)mContext).hideSoftInput();
        }
      }
      break;
    default:
      break;
    }
  }
    return !showDispatchTouch || isAnimating || super.onInterceptTouchEvent(ev);
  }

mReplyEditLayout.addOnLayoutChangeListener(new OnLayoutChangeListener() {
      @Override
      public void onLayoutChange(View v, int left, int top, int right,
          int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
        if(!mOrientationChanged) {
          if(top > oldTop) {
            if(!mEditTouchedFlag)
            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR);
            //键盘隐藏
            mSoftInputShow = false;
            mPullToNextLayout.setDispatchTouch(true);
            mPullToNextLayout.setIsShowSoftInput(false);
          } else if (top < oldTop) {
            //键盘显示
            mSoftInputShow = true;
            mPullToNextLayout.setIsShowSoftInput(true);
          }
          mEditTouchedFlag = false;
        }
      }
    });

@Override
public boolean onTouchEvent(MotionEvent event) {
    if(mSoftInputShow) {
      switch (event.getAction()) {
      case MotionEvent.ACTION_CANCEL:
      case MotionEvent.ACTION_UP:
        imm.hideSoftInputFromWindow(getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
        return true;
      }
    }
    return super.onTouchEvent(event);
}
InputMethodManager.HIDE_NOT_ALWAYS