BaseAdapter使listview设置不同背景图片并添加selector

前段时间为了实现根据item不同的内容实现不同的背景色google了好久只找到了个隔行换色，通过自定义SimpleAdapter终于实现了此功能，但是定义了selector并没有触发点击效果。今天重新想了一遍终于把这个问题解决了。在自定义的getView里就给每个convertView定义它的背景色和selector。

[代码]自定义SimpleAdapter

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public class MySimpleAdapter extends BaseAdapter {

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    private LayoutInflater mInflater;

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    private List<HashMap<String, Object>> dataList;

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    public MySimpleAdapter(Context context, List<HashMap<String, Object>> data) {

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        mInflater = LayoutInflater.from(context);

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        this.dataList = data;

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    }

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    @Override

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    public int getCount() {

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        return dataList.size();

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    }

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    @Override

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    public Object getItem(int position) {

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        return position;

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    }

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    @Override

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    public long getItemId(int position) {

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        return position;

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    }

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    @Override

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    public View getView(int position, View convertView, ViewGroup parent) {

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        ViewHolder holder;

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        if (convertView == null) {

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            convertView = mInflater.inflate(R.layout.color_list_item, null);

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            holder = new ViewHolder();

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            holder.blue = (TextView)convertView.findViewById(R.id.blue_item);

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            holder.red = (TextView)convertView.findViewById(R.id.red_item);

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            holder.green = (TextView)convertView.findViewById(R.id.green_item);

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            holder.yellow = (TextView)convertView.findViewById(R.id.yellow_item);

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            convertView.setTag(holder);

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        } else {

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            holder = (ViewHolder)convertView.getTag();

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        }

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        holder.blue.setText((CharSequence)dataList.get(position).get("blue"));

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        holder.red.setText((CharSequence)dataList.get(position).get("red"));

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        holder.green.setText((CharSequence)dataList.get(position).get("green"));

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        holder.yellow.setText((CharSequence)dataList.get(position).get("yellow"));

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        if ("blue".equals(dataList.get(position).get("status").toString())) {

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            convertView.setBackgroundResource(R.drawable.item_chang_blue);

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        } else if ("red".equals(dataList.get(position).get("status").toString())) {

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            convertView.setBackgroundResource(R.drawable.item_chang_red);

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        } else if ("green".equals(dataList.get(position).get("status").toString())) {

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            convertView.setBackgroundResource(R.drawable.flightinfo_item_chang_green);

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        } else if ("yellow".equals(dataList.get(position).get("status").toString())) {

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            convertView.setBackgroundResource(R.drawable.flightinfo_item_chang_yellow);

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        }

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        return convertView;

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    }

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    @Override

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    public void notifyDataSetChanged() {

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        super.notifyDataSetChanged();

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    }

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    class ViewHolder {

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        TextView blue;

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        TextView red;

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        TextView green;

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        TextView yellow;

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    }

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}

2. [代码]选择器item_chang_blue.xml 其他同理

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<?xml version="1.0" encoding="utf-8"?>

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<selector

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  xmlns:android="http://schemas.android.com/apk/res/android">

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<!-- 非触摸模式下获得焦点并单击时的背景图片 --> 

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 <item

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    android:state_focused="true"

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    android:state_pressed="true"

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 android:drawable= "@drawable/list_item_pressed"/>  

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<!-- 触摸模式下单击时的背景图片 -->

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  <item 

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 android:state_focused="false" 

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    android:state_pressed="true"   

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    android:drawable="@drawable/list_item_pressed" /> 

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<!--选中时的图片背景  --> 

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 <item

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 android:state_selected="true"

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    android:drawable="@drawable/list_item_pressed"/> 

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<!--获得焦点时的图片背景  --> 

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 <item

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    android:state_focused="true"

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    android:drawable="@drawable/list_item_pressed"/>

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    <!--默认背景  -->  ​

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    <item android:drawable="@drawable/status_blue" />

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</selector>

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​​