Android 高仿QQ 好友分組列表

Android 高仿QQ 好友分組列表實現的效果如下：

用ExpandableListView實現，

先看Activity的代碼：

1. public class BuddyActivity extends Activity {
2. ExpandableListView expandablelistview;
3. //群組名稱
4. private String[] group = new String[] { "在線好友", "我的好友", "我的同事"};
5. //好友名稱
6. private String[][] buddy = new String[][] {
7. { "元芳", "雷丶小賤", "狄大人"},
8. {"高太後", "士兵甲", "士兵乙", "士兵丙" },
9. { "藝術家", "叫獸", "攻城師", "職業玩家" }};
11. public void onCreate(Bundle savedInstanceState) {
12. super.onCreate(savedInstanceState);
13. requestWindowFeature(Window.FEATURE_NO_TITLE);
14. setContentView(R.layout.activity_buddy);
16. expandablelistview= (ExpandableListView) findViewById(R.id.buddy_expandablelistview);
17. ExpandableListAdapter adapter=new BuddyAdapter(this,group,buddy);
18. expandablelistview.setAdapter(adapter);
19. //分組展開
20. expandablelistview.setOnGroupExpandListener(new OnGroupExpandListener(){
21. public void onGroupExpand(int groupPosition) {
22. }
23. });
24. //分組關閉
25. expandablelistview.setOnGroupCollapseListener(new OnGroupCollapseListener(){
26. public void onGroupCollapse(int groupPosition) {
27. }
28. });
29. //子項單擊
30. expandablelistview.setOnChildClickListener(new OnChildClickListener(){
31. public boolean onChildClick(ExpandableListView arg0, View arg1,
32. int groupPosition, int childPosition, long arg4) {
33. Toast.makeText(BuddyActivity.this,
34. group[groupPosition]+" : "+buddy[groupPosition][childPosition],
35. Toast.LENGTH_SHORT).show();
36. return false;
37. }
38. });
39. }
40. }