listview多種條目展示案例

[java] view plain copy

1. class

   ="language-java">

   public

   class

   myAdapter

   extends

   BaseAdapter {

2. // 獲得當前條目類型

3. public

   int

   getItemViewType(

   int

   position) {

4. // 如果是標題，返回0

5. if

   (position == 0 || position == userAppList.size() + 1) {

6. return

   0;

7. }

   else

   {

8. // 如果是應用條目，返回1

9. return

   1;

10. }
11. }
14. //獲得條目種類個數
15. @Override

16. public

    int

    getViewTypeCount() {

17. return

    super

    .getViewTypeCount() + 1;

18. }
21. @Override
22. //所有條目總數

23. public

    int

    getCount() {

24. return

    systemAppList.size() + userAppList.size() + 2;

25. }
28. /*
29. * 返回當前條目
30. */

31. public

    AppInfo getItem(

    int

    position) {

32. if

    (position == 0 || position == userAppList.size() + 1) {

33. return

    null

    ;

34. }

    else

    if

    (position < userAppList.size() + 1) {

35. return

    userAppList.get(position - 1);

36. }

    else

    {

37. return

    systemAppList.get(position - 2 - userAppList.size());

38. }
39. }
42. @Override

43. public

    long

    getItemId(

    int

    position) {

44. return

    position;

45. }
48. @Override

49. public

    View getView(

    int

    position, View convertView, ViewGroup parent) {

50. int

    type = getItemViewType(position);

53. // 如果是純文本

54. if

    (type == 0) {

55. ViewTitleHolder vth =

    null

    ;

57. if

    (convertView ==

    null

    ) {

58. convertView = View.inflate(getApplicationContext(),
59. R.layout.item_appinfo_title,

    null

    );

61. vth =

    new

    ViewTitleHolder();

62. vth.title = (TextView) convertView
63. .findViewById(R.id.tv_appinfo_title);
65. convertView.setTag(vth);
67. }

    else

    {

68. vth = (ViewTitleHolder) convertView.getTag();
69. }

70. if

    (position == 0) {

71. vth.title.setText("用戶應用(" + userAppList.size() + ")");
72. }

    else

    {

73. vth.title.setText("系統應用(" + systemAppList.size() + ")");
74. }

75. return

    convertView;

76. }

    else

    {

77. // 如果是應用介紹
78. ViewHolder vh =

    null

    ;

80. if

    (convertView ==

    null

    ) {

81. convertView = View.inflate(getApplicationContext(),
82. R.layout.item_appinfo,

    null

    );

83. vh =

    new

    ViewHolder();

84. vh.icon = (ImageView) convertView
85. .findViewById(R.id.iv_appIcon);
86. vh.appName = (TextView) convertView
87. .findViewById(R.id.tv_appName);
88. vh.appIsSdcard = (TextView) convertView
89. .findViewById(R.id.tv_appIsSdcard);
90. convertView.setTag(vh);
91. }

    else

    {

92. vh = (ViewHolder) convertView.getTag();
93. }
95. AppInfo item = getItem(position);
96. vh.icon.setImageDrawable(item.icon);
97. vh.appName.setText(item.name);

98. if

    (item.isSdcard) {

99. vh.appIsSdcard.setText("內存儲卡");
100. }

     else

     {

101. vh.appIsSdcard.setText("SdCard應用");
102. }

103. return

     convertView;

104. }
105. }
108. }

2. private ArrayList systemAppList; //系統應用信息集合
3. private ArrayList userAppList; //用戶應用信息集合

喜歡這篇文章嗎？立刻分享出去讓更多人知道吧！