本文整理了Java中android.widget.GridView.getFirstVisiblePosition()方法的一些代码示例，展示了GridView.getFirstVisiblePosition()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。GridView.getFirstVisiblePosition()方法的具体详情如下：
包路径：android.widget.GridView
类名称：GridView
方法名：getFirstVisiblePosition

GridView.getFirstVisiblePosition介绍

暂无

代码示例

代码示例来源：origin: stackoverflow.com

static int index;
private GridView gridView;

@Override
public void onResume(){

  gridView.setSelection(index);
  super.onResume();
}

@Override
public void onPause(){  
  index = gridView.getFirstVisiblePosition();
  super.onPause();
}

代码示例来源：origin: stackoverflow.com

private int _savedGridPosition = 0;
private GridView _gridView;

...

@Override
protected void onSaveInstanceState (Bundle outState) {
  super.onSaveInstanceState(outState);
  outState.putInt("grid_position", _gridView.getFirstVisiblePosition());
}

@Override
protected void onRestoreInstanceState (Bundle savedInstanceState) {
  super.onRestoreInstanceState(savedInstanceState);
  if(savedInstanceState != null && savedInstanceState.containsKey("grid_position")) {
    _savedGridPosition = savedInstanceState.getInt("grid_position");
  }
}

@Override
protected void onResume() {
  _gridView.smoothScrollToPosition(_savedGridPosition);
}

@Override void onPause() {
  // set in onPause() too since onRestoreInstanceState() is only
  // called when the Activity is destroyed and recreated.
  _savedGridPosition = _gridView.getFirstVisiblePosition();
}

代码示例来源：origin: stackoverflow.com

@ViewById(R.id.gridViewId)
GridView gridView;

@ItemClick(R.id.gridViewId)
void itemClicked(int position) {
  int firstPosition = gridView.getFirstVisiblePosition();
  int lastPosition = gridView.getLastVisiblePosition();

  View clickedView;

  if ((position < firstPosition) || (position > lastPosition))
    clickedView = null;

  clickedView = gridView.getChildAt(position - firstPosition);
  // do sg with clicked view
}

代码示例来源：origin: stackoverflow.com

private View getViewByPosition(GridView gridView, int position) {
  int firstPosition = gridView.getFirstVisiblePosition();
  int lastPosition = gridView.getLastVisiblePosition();

  if ((position < firstPosition) || (position > lastPosition))
    return null;

  return gridView.getChildAt(position - firstPosition);
}

代码示例来源：origin: fire3/sailorcast

@Override
  public void onScroll(AbsListView view, int firstVisibleItem,
             int visibleItemCount, int totalItemCount) {
    boolean enable = false;
    if (mGrid != null && mGrid.getChildCount() > 0) {
      // check if the first item of the list is visible
      boolean firstItemVisible = mGrid.getFirstVisiblePosition() == 0;
      // check if the top of the first item is visible
      boolean topOfFirstItemVisible = mGrid.getChildAt(0).getTop() == 0;
      // enabling or disabling the refresh layout
      enable = firstItemVisible && topOfFirstItemVisible;
    }
    mSwipeContainer.setEnabled(enable);
  }
});

代码示例来源：origin: fire3/sailorcast

@Override
  public void onScroll(AbsListView view, int firstVisibleItem,
             int visibleItemCount, int totalItemCount) {
    boolean enable = false;
    if (mGrid != null && mGrid.getChildCount() > 0) {
      // check if the first item of the list is visible
      boolean firstItemVisible = mGrid.getFirstVisiblePosition() == 0;
      // check if the top of the first item is visible
      boolean topOfFirstItemVisible = mGrid.getChildAt(0).getTop() == 0;
      // enabling or disabling the refresh layout
      enable = firstItemVisible && topOfFirstItemVisible;
    }
    mSwipeContainer.setEnabled(enable);
  }
});

代码示例来源：origin: reloZid/android-anuto

private void updateArrowVisibility() {
    if (grid_maps.getChildCount() <= 0) {
      arrow_up.setVisibility(View.INVISIBLE);
      arrow_down.setVisibility(View.INVISIBLE);
      return;
    }

    if (grid_maps.getFirstVisiblePosition() == 0) {
      arrow_up.setVisibility(grid_maps.getChildAt(0).getTop() < -10 ? View.VISIBLE : View.INVISIBLE);
    } else {
      arrow_up.setVisibility(grid_maps.getFirstVisiblePosition() > 0 ? View.VISIBLE : View.INVISIBLE);
    }

    if (grid_maps.getLastVisiblePosition() == mAdapter.getCount() - 1) {
      arrow_down.setVisibility(grid_maps.getChildAt(grid_maps.getChildCount() - 1).getBottom() > grid_maps.getHeight() + 10 ? View.VISIBLE : View.INVISIBLE);
    } else {
      arrow_down.setVisibility(grid_maps.getLastVisiblePosition() < mAdapter.getCount() - 1 ? View.VISIBLE : View.INVISIBLE);
    }
  }
}

代码示例来源：origin: googlecreativelab/lipswap

@Override
public void onItemCheckedStateChanged(ActionMode mode, int position, long id,
    boolean checked) {
  //highlight stuff if it should be checked
  GridViewItem item = (GridViewItem) mGridView
      .getChildAt(position - mGridView.getFirstVisiblePosition());
  item.animateHighlight(checked);
  Log.d(TAG, "onItemCheckedStateChanged() " + position + " id: " + id + " checked: "
      + checked);
  if (checked) {
    mSelectedItems.add(item);
  } else {
    mSelectedItems.remove(item);
  }
  if (mSelectedItems.size() > 1) {
    //more than one selected, so disable sharing
    mode.getMenu().findItem(R.id.action_share).setEnabled(false);
  } else if (mSelectedItems.size() == 1) {
    mode.getMenu().findItem(R.id.action_share).setEnabled(true);
  }
}

代码示例来源：origin: stackoverflow.com

public void getAllValues() {
   View parentView = null;
   int temp = 0;
   int getTotal = 0;
   int totQuan = 0;
   int quan = 0;
   for (int i = 0; i < list.getCount(); i++) {
     parentView = getViewByPosition(i, list);
     String getString = ((TextView) parentView
         .findViewById(R.id.totalPrice)).getText().toString();
     getTotal = Integer.parseInt(getString);
     temp = temp + getTotal;
     totQuan = Integer.parseInt(((TextView) parentView
         .findViewById(R.id.counter)).getText().toString());
     quan = quan + totQuan;
   }
   setTotalAmount(String.valueOf(temp), String.valueOf(quan));
 }
 public View getViewByPosition(int pos, GridView listView) {
   final int firstListItemPosition = listView.getFirstVisiblePosition();
   final int lastListItemPosition = firstListItemPosition
       + listView.getChildCount() - 1;
   if (pos < firstListItemPosition || pos > lastListItemPosition) {
     return listView.getAdapter().getView(pos, null, listView);
   } else {
     final int childIndex = pos - firstListItemPosition;
     return listView.getChildAt(childIndex);
   }
 }

代码示例来源：origin: HenriDellal/emerald

final int nCategories = editableCategories.size();
ArrayList<String> editableCategoriesNames = new ArrayList<String>(nCategories);
final int position = grid.getFirstVisiblePosition();
for (String category: editableCategories) {
  editableCategoriesNames.add(categories.getCategory(category).getRepresentName(this));

代码示例来源：origin: stackoverflow.com

(view.getFirstVisiblePosition() > 0
    || view.getChildAt(0).getTop() < view.getPaddingTop());

代码示例来源：origin: stackoverflow.com

Runnable mScroller = new Runnable() {
  public void run() {
    int firstPos = mGrid.getFirstVisiblePosition();
    switch(mDirection) {
    case DIR_UP: {
  mLastSeenPosition = AdapterView.INVALID_POSITION;
  if(position < mGrid.getFirstVisiblePosition()) {
    mDirection = DIR_UP;
  } else if (position > mGrid.getLastVisiblePosition()) {

代码示例来源：origin: chengzichen/KrGallery

return;
int position = listView.getFirstVisiblePosition();
WindowManager manager = (WindowManager) Gallery.applicationContext
    .getSystemService(Activity.WINDOW_SERVICE);