带有edittext的列表视图-在“下一个"上自动滚动 [英] Listview with edittext - auto scroll on "next"

问题描述

我有一个 ListView，每行都有一个 EditText(除了几个不可编辑的 TextView).当我在 EditText 中编辑文本时，软键盘有下一步"按钮 - 按下它会将焦点移动到下一个字段 - 这很棒.在最后一行，按钮变为完成".

I have a ListView with one EditText on each row (in addition to a couple of non-editable TextView's). When I'm editing the text in the EditText, the soft keyboard has "Next" button - and pressing it moves the focus to the next field - this is great. On the last row, the button changes to "Done".

我正在使用 EditText.setImeOptions 根据是否为最后一行将按钮设置为完成"或下一步".

I'm using EditText.setImeOptions to set the button to "Done" or "Next" based on whether this is the last row or not.

问题是列表视图可以有更多的行可以适应屏幕.发生这种情况时，在下一个可见行上按下一步"会将焦点再次移动到第一行.如何让它滚动列表并转到下一行?

The problem is that the listview can have more rows that can fit on the screen. When that happens, pressing "Next" on the next visible row moves the focus onto the first row again. How can I make it scroll the list and go to the next row instead?

作为参考，这是我在适配器中所做的:

For reference, here's what I'm doing in my adapter:

public class AuditAdapter extends BaseAdapter {
    private Context context;
    private int layoutResourceId;
    private Audit audit;

    ...

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        View row = convertView;
        final AuditItemHolder holder = (row == null ? new AuditItemHolder() : (AuditItemHolder)row.getTag());

        if(row == null)
        {
            LayoutInflater inflater = ...;
            row = inflater.inflate(layoutResourceId, parent, false);
            ...
            holder.qtyf = (EditText)row.findViewById(R.id.item_quantity);
        }

        AuditItem item = audit.getItemAt(position);

        holder.qtyf.setText("" + item.getQuantity());
        holder.qtyf.setImeOptions(position == audit.size() - 1 ? EditorInfo.IME_ACTION_DONE : EditorInfo.IME_ACTION_NEXT);

        ...

        row.setTag(holder);
        return row;
    }

    private static class AuditItemHolder {
        ...
        EditText qtyf;
    }
}

推荐答案

好的，经过长时间的努力，我终于找到了适合我的情况的 hack(不是正确的解决方案).在我的适配器的 getView 中，我添加了 onEditorActionListener 并在其中:

Ok, after struggling for a long time, I finally found a hack (not a proper solution) that works for my case. In the getView of my adapter, I add the onEditorActionListener and inside it:

ediField.setOnEditorActionListener(new OnEditorActionListener() {
    @Override
    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
        ListView lv = (ListView)parent;
        if(actionId == EditorInfo.IME_ACTION_NEXT &&
           lv != null &&
           position >= lv.getLastVisiblePosition() &&
           position != audit.size() - 1) {  //audit object holds the data for the adapter
                lv.smoothScrollToPosition(position + 1);
                lv.postDelayed(new Runnable() {
                    public void run() {
                        TextView nextField = (TextView)holderf.qtyf.focusSearch(View.FOCUS_DOWN);
                        if(nextField != null) {
                            nextField.requestFocus();
                        }
                    }
                }, 200);
                return true;
        }
        return false;
    }
});

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