[App] Listview record

直接接使用ListView组件创建列表视图,可以有两种方式。

一种是通过在XML布局文件中使用<ListView>标记添加,

android:entries="@array/ctype"

<string-array name="type">
    <item>AAA</item>
    <item>BBB</item>
    <item>CCC</item>
</string-array>

    private String[] strType = new String[]{"app1", "app2", "app3" };

   ArrayAdapter<String> arrayAdapter = new ArrayAdapter<>(this,
                android.R.layout.simple_list_item_single_choice, strType);

   listView.setAdapter(arrayAdapter);
   listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
   public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                String result = parent.getItemAtPosition(position).toString();
                view.setBackgroundColor(Color.RED);
            }
        });


//adapter = ArrayAdapter.createFromResource(this, R.array.ctype, android.R.layout.simple_list_item_checked);


怎么更新任意一行背景色的问题:

    不是直接的调用函数设置颜色。

    数据是来自adapter,还是写在adapter里的getView里面先做条件判断,然后在需要更新的地方调用Adapter.notifyDataSetChanged();会更调用回调函数getview


public View getView(int position, View convertView, ViewGroup parent) {
        convertView = LayoutInflater.from(mContext).inflate(R.layout.fruit_item, null);
        TextView textView = convertView.findViewById(R.id.fruit_name);
        textView.setText(mList.get(position).getName());
        
        //检测到某个条件,比如说Chao.apple==true
        if(position == 0 && Chao.apple) {
            convertView.setBackgroundColor(Color.BLUE);
        }
        return convertView;
    }

//Record here first

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Origin blog.csdn.net/John_chaos/article/details/109160349