android - ListView选择器问题: Selection does not get removed

Question

我有一个 ListView。当我点击一个 ListItem 时，我将 ListItem(它的 View )的背景设​​置为另一种颜色:

  listView.setOnItemClickListener(new OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> a, View v, int position, long id) {
                    setupDetailView(position);
                    setupChartView(position);
                    setupARView(position);
                    emptyView.setVisibility(View.INVISIBLE);

                    quotesAdapter.isSelected = true;
                    //v.setBackgroundResource(R.drawable.stocks_selector);
                }
            });

这是我的适配器:

private class QuoteAdapter extends ArrayAdapter<Quote> {

        private ArrayList<Quote> items;
        public boolean isSelected = false;

        public QuoteAdapter(Context context, int textViewResourceId, ArrayList<Quote> items) {
            super(context, textViewResourceId, items);
            this.items = items;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            View v = convertView;
            if (v == null) {
                LayoutInflater vi = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                v = vi.inflate(R.layout.mainrow, null);

                if(isSelected)
                    v.setBackgroundResource(R.drawable.red);
                else
                    v.setBackgroundResource(R.drawable.transparent_background);
            }

问题是，如果我选择多行，那么多行都有彩色背景。我只希望点击的项目具有彩色背景。所以如果我点击第 2 行，我希望它变成红色，然后如果我点击第 1 行，我希望第 2 行恢复正常，第 1 行变成红色。

我该怎么做？

Answer 1

将列表选择器放在 ListView 中

 <ListView
        android:id="@+id/list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:cacheColorHint="#00000000"
        android:listSelector="@drawable/stocks_selector" />

您的 stocks_selector.xml 应该类似于

<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    type="rectangle"

>
    <gradient
        android:startColor="@color/start_gradient"
        android:endColor="@color/end_gradient" 
        android:angle="270" />
/>
</shape>