博客

android scrollview中嵌套expandablelistview

  • Post author:
  • Post category:其他


http://blog.csdn.net/swust_chenpeng/article/details/17413955

一、重新expandablelistview


[java]


view plain


copy


  1. public


    class

    CustomExpandableListView

    extends

    ExpandableListView {

  3. public

    CustomExpandableListView(Context context, AttributeSet attrs) {

  4. super

    (context, attrs);

  5. // TODO Auto-generated constructor stub
  6. }

  8. @Override

  9. protected


    void

    onMeasure(

    int

    widthMeasureSpec,

    int

    heightMeasureSpec) {

  10. // TODO Auto-generated method stub

  11. int

    expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >>

    2

    ,
  13. MeasureSpec.AT_MOST);

  15. super

    .onMeasure(widthMeasureSpec, expandSpec);
  16. }
  17. }

二、动态计算expandablelistview的高度，xxx_group.xml和xxx_child.xml的最外层要用linearlayout，反正relativelayout不行，不知道为什么


[java]


view plain


copy


  1. private


    void

    setListViewHeight(ExpandableListView listView) {
  2. ListAdapter listAdapter = listView.getAdapter();

  3. int

    totalHeight =

    0

    ;

  4. int

    count = listAdapter.getCount();

  5. for

    (

    int

    i =

    0

    ; i < listAdapter.getCount(); i++) {
  6. View listItem = listAdapter.getView(i,

    null

    , listView);
  7. listItem.measure(

    0

    ,

    0

    );
  8. totalHeight += listItem.getMeasuredHeight();
  9. }
  11. ViewGroup.LayoutParams params = listView.getLayoutParams();
  12. params.height = totalHeight
  13. + (listView.getDividerHeight() * (listAdapter.getCount() –

    1

    ));
  14. listView.setLayoutParams(params);
  15. listView.requestLayout();
  16. }

三、scrollveiew中嵌套的listview的话，前两种都行，还有一种如下


[java]


view plain


copy


  1. public


    class

    ViewGroupForListView

    extends

    LinearLayout

    implements

    View.OnClickListener {

  3. private

    ListAdapter mAdapter =

    null

    ;

  4. private

    OnItemClickListener mListener =

    null

    ;

  6. public

    ViewGroupForListView(Context context) {

  7. super

    (context);
  8. }

  10. public

    ViewGroupForListView(Context context, AttributeSet attrs) {

  11. super

    (context, attrs);

  12. // TODO Auto-generated constructor stub

  13. this

    .setOrientation(VERTICAL);
  14. }

  16. /**

  17. * 绑定数据

  18. */

  19. protected


    void

    bindData() {

  20. int

    count = mAdapter.getCount();

  21. for

    (

    int

    i =

    0

    ; i < count; i++) {
  22. View v = mAdapter.getView(i,

    null

    ,

    null

    );
  23. v.setLayoutParams(

    new

    LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
  24. v.setOnClickListener(

    this

    );
  25. v.setId(i);
  26. addView(v, i);
  27. }
  28. }

  30. /**

  31. * 设置adapter

  32. * @param adapter

  33. */

  34. public


    void

    setAdapter(ListAdapter adapter) {
  35. mAdapter = adapter;

  36. if

    (

    this

    .getChildCount() !=

    0

    ) {
  37. removeAllViews();
  38. }
  39. bindData();
  40. }

  42. /**

  43. * 获取adapter

  44. * @return

  45. */

  46. public

    ListAdapter getAdapter() {

  47. return

    mAdapter;
  48. }

  50. /**

  51. * 绑定监听

  52. * @param listener

  53. */

  54. public


    void

    setOnItemClickListener(OnItemClickListener listener) {

  55. this

    .mListener = listener;
  56. }

  58. @Override

  59. public


    void

    onClick(View v) {

  60. // TODO Auto-generated method stub

  61. if

    (mListener !=

    null

    ) {
  62. mListener.onItemClick(v.getId(), mAdapter);
  63. }
  64. }

  66. /**

  67. * 监听接口

  68. * @author Visual

  69. *

  70. */

  71. public


    interface

    OnItemClickListener {

  72. public


    void

    onItemClick(

    int

    position, ListAdapter adapter);
  73. }

adapter的实现类似普通listview的adapter用法