listview多種條目展示案例

[java] view plain copy

1. <code

   class

   ="language-java"><span> </span>

   public

   class

   myAdapter

   extends

   BaseAdapter {

2. <span> </span>//<span> </span>獲得當前條目類型
3. <span> </span>

   public

   int

   getItemViewType(

   int

   position) {
4. <span> </span>// 如果是標題，返回0
5. <span> </span>

   if

   (position == 0 || position == userAppList.size() + 1) {
6. <span> </span>

   return

   0;
7. <span> </span>}

   else

   {
8. <span> </span>// 如果是應用條目，返回1
9. <span> </span>

   return

   1;
10. <span> </span>}
11. <span> </span>}
14. <span> </span>//獲得條目種類個數
15. <span> </span>@Override
16. <span> </span>

    public

    int

    getViewTypeCount() {
17. <span> </span>

    return

    super

    .getViewTypeCount() + 1;
18. <span> </span>}
21. <span> </span>@Override
22. <span> </span>//所有條目總數
23. <span> </span>

    public

    int

    getCount() {
24. <span> </span>

    return

    systemAppList.size() + userAppList.size() + 2;
25. <span> </span>}
28. <span> </span>/*
29. <span> </span> * 返回當前條目
30. <span> </span> */
31. <span> </span>

    public

    AppInfo getItem(

    int

    position) {
32. <span> </span>

    if

    (position == 0 || position == userAppList.size() + 1) {
33. <span> </span>

    return

    null

    ;
34. <span> </span>}

    else

    if

    (position < userAppList.size() + 1) {
35. <span> </span>

    return

    userAppList.get(position - 1);
36. <span> </span>}

    else

    {
37. <span> </span>

    return

    systemAppList.get(position - 2 - userAppList.size());
38. <span> </span>}
39. <span> </span>}
42. <span> </span>@Override
43. <span> </span>

    public

    long

    getItemId(

    int

    position) {
44. <span> </span>

    return

    position;
45. <span> </span>}
48. <span> </span>@Override
49. <span> </span>

    public

    View getView(

    int

    position, View convertView, ViewGroup parent) {

50. <span> </span>

    int

    type = getItemViewType(position);
53. <span> </span>// 如果是純文本
54. <span> </span>

    if

    (type == 0) {
55. <span> </span>ViewTitleHolder vth =

    null

    ;
56. <span> </span>
57. <span> </span>

    if

    (convertView ==

    null

    ) {
58. <span> </span>convertView = View.inflate(getApplicationContext(),
59. <span> </span>R.layout.item_appinfo_title,

    null

    );
60. <span> </span>
61. <span> </span>vth =

    new

    ViewTitleHolder();
62. <span> </span>vth.title = (TextView) convertView
63. <span> </span>.findViewById(R.id.tv_appinfo_title);
64. <span> </span>
65. <span> </span>convertView.setTag(vth);
66. <span> </span>
67. <span> </span>}

    else

    {
68. <span> </span>vth = (ViewTitleHolder) convertView.getTag();
69. <span> </span>}
70. <span> </span>

    if

    (position == 0) {
71. <span> </span>vth.title.setText("用戶應用(" + userAppList.size() + ")");
72. <span> </span>}

    else

    {

73. <span> </span>vth.title.setText("系統應用(" + systemAppList.size() + ")");
74. <span> </span>}
75. <span> </span>

    return

    convertView;
76. <span> </span>}

    else

    {
77. <span> </span>// 如果是應用介紹
78. <span> </span>ViewHolder vh =

    null

    ;
79. <span> </span>
80. <span> </span>

    if

    (convertView ==

    null

    ) {
81. <span> </span>convertView = View.inflate(getApplicationContext(),
82. <span> </span>R.layout.item_appinfo,

    null

    );
83. <span> </span>vh =

    new

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

    else

    {
92. <span> </span>vh = (ViewHolder) convertView.getTag();
93. <span> </span>}
94. <span> </span>
95. <span> </span>AppInfo item = getItem(position);
96. <span> </span>vh.icon.setImageDrawable(item.icon);
97. <span> </span>vh.appName.setText(item.name);
98. <span> </span>

    if

    (item.isSdcard) {
99. <span> </span>vh.appIsSdcard.setText("內存儲卡");
100. <span> </span>}

     else

     {
101. <span> </span>vh.appIsSdcard.setText("SdCard應用");
102. <span> </span>}
103. <span> </span>

     return

     convertView;
104. <span> </span>}
105. <span> </span>}
108. <span> </span>}</code>

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

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