java - ListItem焦点改变

Question

我有一个自定义 listView，其中包含一些 View (如 textView 和 imageView)。我想在列表项获得焦点时更改其背景颜色。我已经为我的转换 View 设置了 OnfocusChange 但它不起作用。这是我的持有者类别:

private class Holder {
    ImageView iconImage;
    TextView titleText ;
    TextView costText ;
    }

和 getView 方法:

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    final Item item = item.get(position);

    final Holder temp;

    if (convertView == null) {
        convertView = inflater.inflate(R.layout.list_item, null);
        temp = new Holder();
        temp.iconImage = (ImageView) convertView
                .findViewById(R.id.iconImageView);

        temp.titleText = (TextView) convertView
                .findViewById(R.id.titleTextView);
        temp.costText = (TextView) convertView
                .findViewById(R.id.costTextView);

        convertView.setTag(temp);
    } else {
        temp = (Holder) convertView.getTag();
    }
    temp.titleText.setText(item.getItemTitle());
    //this focus listener doesn't work.
    convertView.setOnFocusChangeListener(new OnFocusChangeListener() {

        @Override
        public void onFocusChange(View v, boolean hasFocus) {
            if (hasFocus) {
                temp.titleText.setBackground(context.getResources()
                        .getDrawable(
                                R.drawable.green_background));

            } else {
                temp.titleText.setBackground(context.getResources()
                        .getDrawable(R.drawable.black_background));
            }
        }
    });

}

如何为 ListView 中的每个列表项设置 OnFocusChange 监听器？

Answer 1

您是否尝试过将 focusable 和 focusableintouchmode 设置为 true？

android:focusable="true"
android:focusableInTouchMode="true"

并尝试将textviews和imageview的focusable设置为false。