Set First Visible Item In Android Gridview Completely Seen

i have gridview with two column user can scroll vertically to see gridview items the problem is when user scrolling is finished the first visible row is not completely seen .i

Solution 1:

you can try this

grid.setOnScrollListener(new OnScrollListener() {

            @Override
            public void onScrollStateChanged(AbsListView arg0, int scrollState) {
                //this is the state when scroll finish
                if(scrollState==SCROLL_STATE_IDLE)
                    //the first visible item is the first (even partially) visbile item
                    //setSelection will scroll the grid to the beginning of such item
                    grid.setSelection(firstVisibleItem);
            }

            @Override
            public void onScroll(AbsListView arg0, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
            }
        });

Solution 2:

I use RecyclerView, and i hope it's good for you!

mLayoutManager = new GridLayoutManager(getActivity(), 2);
mListRV= (RecyclerView).findViewById(R.id.list_rv);
mListRV.setLayoutManager(mLayoutManager);

mListRV.setOnScrollListener(new RecyclerView.OnScrollListener() {
                @Override
                public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
                    if (newState == RecyclerView.SCROLL_STATE_IDLE) {
                        View v = mLayoutManager.getChildAt(0);
                        int offsetTop = v.getTop();
                        int offsetBottom = v.getBottom();
                        int height = (offsetBottom - offsetTop);
                        if(offsetTop >= -height/2) {
                            mListRV.smoothScrollBy(0, offsetTop);
                        } else {
                            mListRV.smoothScrollBy(0, height + offsetTop);
                        }
                    } 
                }
            });

With this code, when you finish scroll, if the first visible item only show a part in recyclerView. It will auto scroll to show full item. You can use:

mLayoutManager.scrollToPositionWithOffset(position, offset);

But it is so fast, the user can be confused. And you will not need use customLayoutManager to edit scroll's properties.

Hope that helps for you!