android ExpandableListView+CheckBox实现组选列表_course

需要用ExpandableListView+CheckBox实现一个组选列表，ExpandableListView组列表为部门，子列表为成员。需要选中部门的CheckBox时，选中所有组内成员CheckBox，取消时全部取消。选择单个组内成员时，未全部选中该部门成员，则部门CheckBox不勾选，如选中了所有成员，则自动勾选部门CheckBox。希望以前做过的朋友可以给个详细的例子 下面附上我的代码 ``` import android.content.Context; import android.view.View; import android.view.ViewGroup; import android.widget.BaseExpandableListAdapter; import android.widget.CheckBox; import android.widget.CompoundButton; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; import java.util.ArrayList; import java.util.List; import java.util.Map; public class ReportListAdapter extends BaseExpandableListAdapter { private Context context; private List<DepartmentEntity> parentList; private Map<String, List<EmployeeEntity>> map; private List<Boolean> parentStatusList = new ArrayList<Boolean>(); private List<Boolean> childStatusList = new ArrayList<Boolean>(); public ReportListAdapter(Context context, List<DepartmentEntity> parentList, Map<String, List<EmployeeEntity>> map) { this.context = context; this.parentList = parentList; this.map = map; } // 得到子item需要关联的数据 @Override public Object getChild(int groupPosition, int childPosition) { String key = parentList.get(groupPosition).getId(); return (map.get(key).get(childPosition)); } // 得到子item的ID @Override public long getChildId(int groupPosition, int childPosition) { return childPosition; } // 设置子item的组件 @Override public View getChildView(final int groupPosition, final int childPosition, final boolean isLastChild, View convertView, final ViewGroup parent) { if (convertView == null) { convertView = View.inflate(context, R.layout.report_list_child_item, null); } String key = this.parentList.get(groupPosition).getId(); final EmployeeEntity employee = map.get(key).get(childPosition); String name = employee.getName(); TextView employeeName = BaseViewHolder.get(convertView, R.id.employee_name); employeeName.setText(name); CheckBox childCB = BaseViewHolder.get(convertView, R.id.employee_checkbox); // if (employee.isChecked()) { // cb.setChecked(true); // } else { // cb.setChecked(false); // } childCB.setChecked(employee.isChecked()); // notifyDataSetChanged(); childCB.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { CheckBox nowCB = (CheckBox) view; if (nowCB.isChecked()) { employee.setIsChecked(true); // // //获得子item数量 int childSize = getChildrenCount(groupPosition); //其他子item状态 List<Boolean> otherChildStatus = new ArrayList<Boolean>(); otherChildStatus.clear(); for (int i = 0; i < childSize; i++) { if (i != childPosition) { boolean isLastChild1; if (i == childSize - 1) { isLastChild1 = true; } else { isLastChild1 = false; } //获得子item View view1 = getChildView(groupPosition, i, isLastChild1, null, null); CheckBox childCB = (CheckBox) view1.findViewById(R.id.employee_checkbox); boolean cbStatus; if (childCB.isChecked()) { cbStatus = true; } else { cbStatus = false; } otherChildStatus.add(cbStatus); } } //获得父item View parentView1 = getGroupView(groupPosition, true, null, null); //获取父item的cb CheckBox parentCB = (CheckBox) parentView1.findViewById(R.id.department_checkbox); //设置父Item选项框状态 for (int i = 0; i < otherChildStatus.size(); i++) { if (!otherChildStatus.get(i)) { parentList.get(groupPosition).setIsChecked(false); parentCB.setChecked(false); System.out.println("设置父cb不选"); break; } else { parentList.get(groupPosition).setIsChecked(true); parentCB.setChecked(true); notifyDataSetChanged(); System.out.println("设置父cb全选中"); } } notifyDataSetChanged(); } else { //获得父item View parentView = getGroupView(groupPosition, true, null, null); employee.setIsChecked(false); CheckBox parentCB = (CheckBox) parentView.findViewById(R.id.department_checkbox); parentList.get(groupPosition).setIsChecked(false); parentCB.setChecked(false); System.out.println("设置父cb不选"); notifyDataSetChanged(); } } }); // cb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { // @Override // public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) { // //获得父item // View parentView = getGroupView(groupPosition, true, null, null); // if (isChecked) { // employee.setIsChecked(true); // // //获得子item数量 // int childSize = getChildrenCount(groupPosition); // //其他子item状态 // List<Boolean> otherChildStatus = new ArrayList<Boolean>(); // for (int i = 0; i < childSize; i++) { // if (i != childPosition) { // boolean isLastChild1; // if (i == childSize - 1) { // isLastChild1 = true; // } else { // isLastChild1 = false; // } // //获得子item // View view = getChildView(groupPosition, i, isLastChild1, null, null); // CheckBox childCB = (CheckBox) view.findViewById(R.id.employee_checkbox); // boolean cbStatus; // if (childCB.isChecked()) { // cbStatus = true; // } else { // cbStatus = false; // } // otherChildStatus.add(cbStatus); // } // } // //设置父Item选项框状态 // for (int i = 0; i < otherChildStatus.size(); i++) { // CheckBox parentCB = (CheckBox) parentView.findViewById(R.id.department_checkbox); // if (otherChildStatus.get(i) == false) { // parentCB.setChecked(false); // parentList.get(groupPosition).setIsChecked(false); // break; // } else { // parentCB.setChecked(true); // parentList.get(groupPosition).setIsChecked(true); // } // } // notifyDataSetChanged(); // } else { // employee.setIsChecked(false); // CheckBox parentCB = (CheckBox) parentView.findViewById(R.id.department_checkbox); // parentCB.setChecked(false); // parentList.get(groupPosition).setIsChecked(false); // notifyDataSetChanged(); // } // // } // }); return convertView; } // 获取当前父item下的子item的个数 @Override public int getChildrenCount(int groupPosition) { String key = parentList.get(groupPosition).getId(); int size = map.get(key).size(); return size; } // 获取当前父item的数据 @Override public Object getGroup(int groupPosition) { return parentList.get(groupPosition); } @Override public int getGroupCount() { return parentList.size(); } @Override public long getGroupId(int groupPosition) { return groupPosition; } // 设置父item组件 @Override public View getGroupView(final int groupPosition, final boolean isExpanded, View convertView, ViewGroup parent) { if (convertView == null) { convertView = View.inflate(context, R.layout.report_list_parent_item, null); } ImageView mgroupimage = BaseViewHolder.get(convertView, R.id.arrow); mgroupimage.setImageResource(R.mipmap.la); if (!isExpanded) { mgroupimage.setImageResource(R.mipmap.shou); } TextView departmentName = BaseViewHolder.get(convertView, R.id.department_name); departmentName.setText(parentList.get(groupPosition).getName()); final CheckBox cb = BaseViewHolder.get(convertView, R.id.department_checkbox); cb.setOnClickListener( new View.OnClickListener() { @Override public void onClick(View view) { System.out.println("点击了父" + groupPosition); CheckBox nowCB = (CheckBox) view; if (nowCB.isChecked()) { //获取子item的数量 int childSize = getChildrenCount(groupPosition); //子item全选中 for (int i = 0; i < childSize; i++) { //获取子item EmployeeEntity child = (EmployeeEntity) getChild(groupPosition, i); child.setIsChecked(true); boolean isLastChild; if (i == childSize - 1) { isLastChild = true; } else { isLastChild = false; } //获得子item View view1 = getChildView(groupPosition, i, isLastChild, null, null); CheckBox childCB = (CheckBox) view1.findViewById(R.id.employee_checkbox); childCB.setChecked(true); System.out.println("子" + groupPosition + "-" + i + " 已经选中"); } //设置父item被完全选中 parentList.get(groupPosition).setIsChecked(true); cb.setChecked(true); System.out.println("父" + groupPosition + " 已经选中"); notifyDataSetChanged(); } else { //获取子item的数量 int childSize = getChildrenCount(groupPosition); //子Item全都不选中 for (int i = 0; i < childSize; i++) { //获取子item数据 EmployeeEntity child = (EmployeeEntity) getChild(groupPosition, i); child.setIsChecked(false); boolean isLastChild; if (i == childSize - 1) { isLastChild = true; } else { isLastChild = false; } //获得子item View view2 = getChildView(groupPosition, i, isLastChild, null, null); CheckBox childCB = (CheckBox) view2.findViewById(R.id.employee_checkbox); childCB.setChecked(false); System.out.println("子" + groupPosition + "-" + i + " 已经设为没选中"); } parentList.get(groupPosition).setIsChecked(false); notifyDataSetChanged(); } } } ); int childSize = getChildrenCount(groupPosition); List<Boolean> nowChildStatus = new ArrayList<Boolean>(); nowChildStatus.clear(); // cb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { // @Override // public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) { // System.out.println("点击了父" + groupPosition); // if (isChecked) { // //获取子item的数量 // int childSize = getChildrenCount(groupPosition); // //子item全选中 // for (int i = 0; i < childSize; i++) { // //获取子item // EmployeeEntity child = (EmployeeEntity) getChild(groupPosition, i); // child.setIsChecked(true); // boolean isLastChild; // if (i == childSize - 1) { // isLastChild = true; // } else { // isLastChild = false; // } // //获得子item // View view = getChildView(groupPosition, i, isLastChild, null, null); // CheckBox childCB = (CheckBox) view.findViewById(R.id.employee_checkbox); // childCB.setChecked(true); // System.out.println("子" + groupPosition + "-" + i + " 已经选中"); // } // //设置父item被完全选中 // parentList.get(groupPosition).setIsChecked(true); // cb.setChecked(true); // System.out.println("父" + groupPosition + " 已经选中"); // // notifyDataSetChanged(); // } else { // //获取子item的数量 // int childSize = getChildrenCount(groupPosition); // //子Item全都不选中 // for (int i = 0; i < childSize; i++) { // //获取子item数据 // EmployeeEntity child = (EmployeeEntity) getChild(groupPosition, i); // child.setIsChecked(false); // boolean isLastChild; // if (i == childSize - 1) { // isLastChild = true; // } else { // isLastChild = false; // } // //获得子item // View view = getChildView(groupPosition, i, isLastChild, null, null); // CheckBox childCB = (CheckBox) view.findViewById(R.id.employee_checkbox); // childCB.setChecked(false); // System.out.println("子" + groupPosition + "-" + i + " 已经设为没选中"); // } // parentList.get(groupPosition).setIsChecked(false); // // notifyDataSetChanged(); // } // // } // }); // if (parentList.get(groupPosition).getIsChecked() == 2) { // cb.setChecked(true); // } else { // cb.setChecked(false); // } return convertView; } @Override public boolean hasStableIds() { return true; } //子集是否可选 @Override public boolean isChildSelectable(int groupPosition, int childPosition) { return true; } } ```

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