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     

01	public class MySimpleAdapter extends BaseAdapter {

02	private LayoutInflater mInflater;

03

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

05

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

07	mInflater = LayoutInflater.from(context);

08	this.dataList = data;

09

}

10

11

@Override

12	public int getCount() {

13	return dataList.size();

14

}

15

16

@Override

17	public Object getItem(int position) {

18	return position;

19

}

20

21

@Override

22	public long getItemId(int position) {

23	return position;

24

}

25

26

@Override

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

28	ViewHolder holder;

29	if (convertView == null) {

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

31	holder = new ViewHolder();

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

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

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

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

36

37	convertView.setTag(holder);

38

39

} else {

40	holder = (ViewHolder)convertView.getTag();

41

42

}

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

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

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

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

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

48	convertView.setBackgroundResource(R.drawable.item_chang_blue);

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

50	convertView.setBackgroundResource(R.drawable.item_chang_red);

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

52	convertView.setBackgroundResource(R.drawable.flightinfo_item_chang_green);

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

54	convertView.setBackgroundResource(R.drawable.flightinfo_item_chang_yellow);

55

}

56	return convertView;

57

}

58

59

@Override

60	public void notifyDataSetChanged() {

61	super.notifyDataSetChanged();

62

}

63

64	class ViewHolder {

65	TextView blue;

66	TextView red;

67	TextView green;

68	TextView yellow;

69

}

70

71

}

 

2. [代码]选择器item_chang_blue.xml 其他同理     

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

02

<selector

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

04

05	<!-- 非触摸模式下获得焦点并单击时的背景图片 -->

06

<item

07	android:state_focused="true"

08	android:state_pressed="true"

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

10	<!-- 触摸模式下单击时的背景图片 -->

11

12

<item

13	android:state_focused="false"

14	android:state_pressed="true"

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

16

17

18	<!--选中时的图片背景  -->

19

<item

20	android:state_selected="true"

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

22	<!--获得焦点时的图片背景  -->

23

<item

24	android:state_focused="true"

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

26	<!--默认背景  -->  ​

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

28	</selector>

29

​​