实现代码

Adapter的代码

其中:ViewHolder分别是三个不同的布局,也就是ListView中每一项的布局

TYPE_1...是三种类型.

在使用不同布局的时候,getItemViewType和getViewType不能少,一般是不用这两个函数的重载的

[java] view plain copy
  1. classRunRankAdapterextendsBaseAdapter{
  2. ArrayList<HashMap<String,Object>>ls;
  3. ContextmContext;
  4. LinearLayoutlinearLayout=null;
  5. LayoutInflaterinflater;
  6. TextViewtex;
  7. finalintVIEW_TYPE=3;
  8. finalintTYPE_1=0;
  9. finalintTYPE_2=1;
  10. finalintTYPE_3=2;
  12. publicRunRankAdapter(Contextcontext,
  13. ArrayList<HashMap<String,Object>>list){
  14. ls=list;
  15. mContext=context;
  16. }
  18. @Override
  19. publicintgetCount(){
  20. returnls.size();
  21. }
  23. @Override
  24. publicObjectgetItem(intposition){
  25. returnls.get(position);
  26. }
  28. @Override
  29. publiclonggetItemId(intposition){
  30. return0;
  31. }
  33. //每个convertview都会调用此方法，获得当前所需要的view样式
  34. @Override
  35. publicintgetItemViewType(intposition){
  36. intp=position;
  37. if(p==0)
  38. returnTYPE_1;
  39. elseif(p==1)
  40. returnTYPE_2;
  41. else
  42. returnTYPE_3;
  43. }
  45. @Override
  46. publicintgetViewTypeCount(){
  47. return3;
  48. }
  50. @Override
  51. publicViewgetView(intposition,ViewconvertView,ViewGroupparent){
  52. ViewHolder1holder1=null;
  53. ViewHolder2holder2=null;
  54. ViewHolder3holder3=null;
  55. inttype=getItemViewType(position);
  56. if(convertView==null){
  57. inflater=LayoutInflater.from(mContext);
  58. //按当前所需的样式，确定new的布局
  59. switch(type){
  60. caseTYPE_1:
  62. convertView=inflater.inflate(R.layout.item_runrank1,
  63. parent,false);
  64. holder1=newViewHolder1();
  65. holder1.rank1=(TextView)convertView
  66. .findViewById(R.id.tv_list1_rank);
  67. holder1.time1=(TextView)convertView
  68. .findViewById(R.id.tv_list1_time);
  69. convertView.setTag(holder1);
  70. break;
  71. caseTYPE_2:
  72. convertView=inflater.inflate(R.layout.item_runrank2,
  73. parent,false);
  74. holder2=newViewHolder2();
  75. holder2.rank2=(TextView)convertView
  76. .findViewById(R.id.tv_list2_rank);
  77. holder2.time2=(TextView)convertView
  78. .findViewById(R.id.tv_list2_time);
  79. convertView.setTag(holder2);
  80. break;
  81. caseTYPE_3:
  82. convertView=inflater.inflate(R.layout.item_runrank3,
  83. parent,false);
  84. holder3=newViewHolder3();
  85. holder3.rank3=(TextView)convertView
  86. .findViewById(R.id.tv_list3_rank);
  87. holder3.time3=(TextView)convertView
  88. .findViewById(R.id.tv_list3_time);
  89. convertView.setTag(holder3);
  90. break;
  91. default:
  92. break;
  93. }
  95. }else{
  96. switch(type){
  97. caseTYPE_1:
  98. holder1=(ViewHolder1)convertView.getTag();
  99. break;
  100. caseTYPE_2:
  101. holder2=(ViewHolder2)convertView.getTag();
  102. break;
  103. caseTYPE_3:
  104. holder3=(ViewHolder3)convertView.getTag();
  105. break;
  106. }
  107. }
  108. //设置资源
  109. switch(type){
  110. caseTYPE_1:
  111. holder1.rank1.setText(""+(position+1));
  112. holder1.time1.setText(ls.get(position).get("time").toString());
  113. break;
  114. caseTYPE_2:
  115. holder2.rank2.setText(""+(position+1));
  116. holder2.time2.setText(ls.get(position).get("time").toString());
  117. holder2.totaldistance2.setText(ls.get(position)
  118. break;
  119. caseTYPE_3:
  120. holder3.rank3.setText(""+(position+1));
  121. holder3.time3.setText(ls.get(position).get("time").toString());
  122. break;
  123. }
  125. returnconvertView;
  126. }
  128. publicclassViewHolder1{
  129. TextViewrank1;
  130. TextViewtime1;
  131. }
  133. publicclassViewHolder2{
  134. TextViewrank2;
  135. TextViewtime2;
  136. }
  138. publicclassViewHolder3{
  139. TextViewrank3;
  140. TextViewtime3;
  141. }
  142. }

使用方式:

声明并定义自己的Adapter,在ListView中设置他的Adapter

[java] view plain copy
  1. privateRunRankAdapterrunRankAdapter;
  2. ArrayList<HashMap<String,Object>>runRank;
  3. ListViewlv_runRank;
  4. runRank=newArrayList<HashMap<String,Object>>();
  5. runRankAdapter=newRunRankAdapter(this,runRank);
  6. lv_runRank=(ListView)findViewById(R.id.lv_runRank);
  7. lv_runRank.setAdapter(runRankAdapter);


还有一种方法：

在主布局文件中包含一个LinearLayout. 并且设置android:orientation="vertical"
定义两种不同的布局文件，然后代码中,根据不同条件调用.addview向LinearLayout加载就可以了

转自http://blog.csdn.net/lllkey/article/details/9093107


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