如何实现在expandableListView中的CheckBox，点击CheckBox后获得所点击项

package com.demo.android.idr;import java.util.ArrayList;
import java.util.List;import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.BaseExpandableListAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.ExpandableListView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.ExpandableListView.OnChildClickListener;
import android.widget.ExpandableListView.OnGroupClickListener;public class ProtocolActivity extends Activity { private Button cancelButton;
private Button acceptButton;
private TextView protocolTextVIew;
private ExpandableListView expandableListView;
private CustomExpandAdapter customExpandAdapter;
private List<String> group;
private List<List<String>> child; @Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.protocol);
ManageApplication.getInstance().addActivity(this);
addExamle();
findViews();
setListeners();

         // to refresh ExpandableListView
customExpandAdapter.notifyDataSetChanged();
} private void findViews() {
// ExpandableListView & BaseExpandableListAdapter
expandableListView = (ExpandableListView) findViewById(R.id.expandableList);
customExpandAdapter = new CustomExpandAdapter(this);
expandableListView.setAdapter(customExpandAdapter);
cancelButton = (Button) findViewById(R.id.cancelButton);
acceptButton = (Button) findViewById(R.id.acceptButton);
protocolTextVIew = (TextView) findViewById(R.id.protocolsTextView);


} public void addExamle() {
// to initialize 2 contains
group = new ArrayList<String>();
child = new ArrayList<List<String>>(); addItem("Abdomen", new String[] { "ABD_1_VIEW", "ABD_2_VIEW" });
addItem("Chest", new String[] { "CHEST_1_VIEW", "CHEST_2_VIEW",
"RIBS_ABOVE_DIAPHRAGM", "RIBS_BELOW_DIAPHRAGM", "STERNUM" });
addItem("Shoulder", new String[] { "SHOULDER", "SCAPULA", "AC_JOINTS",
"CS_JOINTS", "CLAVICLE" });
} public void addItem(String parentString, String[] childString) {
group.add(parentString); List<String> item = new ArrayList<String>(); for (int i = 0; i < childString.length; i++) {
item.add(childString[i]);
} child.add(item);
} public class CustomExpandAdapter extends BaseExpandableListAdapter {
Activity activity; public CustomExpandAdapter(Activity a) {
activity = a;
} // child method stub // @Override
public Object getChild(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
//String string=child.get(groupPosition).get(childPosition).toString();

return child.get(groupPosition).get(childPosition);
} // @Override
public long getChildId(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return childPosition;
} // @Override
public int getChildrenCount(int groupPosition) {
// TODO Auto-generated method stub
return child.get(groupPosition).size();
} // @Override
public View getChildView(int groupPosition, int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
String string = child.get(groupPosition).get(childPosition);
// return getGenericView(string);
return composeCheckView(string);
} // group method stub
// @Override
public Object getGroup(int groupPosition) {
// TODO Auto-generated method stub
return group.get(groupPosition);
} // @Override
public int getGroupCount() {
// TODO Auto-generated method stub
return group.size();
} // @Override
public long getGroupId(int groupPosition) {
// TODO Auto-generated method stub
return groupPosition;
} // @Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
String string = group.get(groupPosition);
return getGenericView(string);
} // View stub to create Group/Children 's View
public TextView getGenericView(String s) {
// Layout parameters for the ExpandableListView
AbsListView.LayoutParams lp = new AbsListView.LayoutParams(
ViewGroup.LayoutParams.FILL_PARENT, 64); TextView text = new TextView(activity);
text.setLayoutParams(lp);
// Center the text vertically
text.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT);
// Set the text starting position
text.setPadding(36, 0, 0, 0); text.setText(s);
return text;
} // @Override
public boolean hasStableIds() {
// TODO Auto-generated method stub
return false;
} // @Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return true;
} // custom method stub
private View composeCheckView(String string) {
CheckBox cb = new CheckBox(activity);
cb.setText(string);
return cb;
} } private void setListeners() {
acceptButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent protocolExpoParameterIntent = new Intent();
protocolExpoParameterIntent.setClass(ProtocolActivity.this,
ExpoParameterActivity.class);
startActivity(protocolExpoParameterIntent);
ProtocolActivity.this.finish();
}
}); cancelButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent protocolWorklistIntent = new Intent();
protocolWorklistIntent.setClass(ProtocolActivity.this,
WorklistActivity.class);
startActivity(protocolWorklistIntent);
ProtocolActivity.this.finish();
}
});

expandableListView.setOnGroupClickListener(new OnGroupClickListener() {
           // @Override
            public boolean onGroupClick(ExpandableListView arg0, View arg1,
                    int arg2, long arg3) {
                // TODO Auto-generated method stub
                System.out.println("The row id of the group clicked" + arg3);
                Toast.makeText(ProtocolActivity.this, "[Group Click]:" + arg2,
                        Toast.LENGTH_SHORT).show();
                return false;
            }
        });
expandableListView.setOnChildClickListener(new OnChildClickListener() {
           // @Override
            public boolean onChildClick(ExpandableListView arg0, View arg1,
                    int arg2, int arg3, long arg4) {
                // TODO Auto-generated method stub
                Toast.makeText(ProtocolActivity.this, "[Child Click]:" + arg2 + ":" + arg3,
                        Toast.LENGTH_SHORT).show();
                return false;
            }
        });

}
}
<?xml version="1.0" encoding="UTF-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal" android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/dark_blue"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingBottom="10dp">
<LinearLayout android:id="@+id/leftLayout"
android:orientation="vertical" android:layout_height="fill_parent" android:layout_width="378dp">
<TextView android:id="@+id/availableProtocolsTextView"
android:layout_height="wrap_content" android:layout_width="fill_parent"
android:text="@string/availableProtocols" android:paddingLeft="10dp"
android:textColor="@color/dark_blue_text" android:background="@color/mid_blue"
android:textSize="25dp" android:textStyle="bold"></TextView>
<ExpandableListView android:id="@+id/expandableList"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:background="@color/dark_grey"
android:textSize="25dp"></ExpandableListView>
</LinearLayout> <LinearLayout
android:id="@+id/rightLayout"
android:orientation="vertical"
android:layout_width="wrap_content" android:layout_height="fill_parent"
android:layout_weight="3.18" android:weightSum="1"
android:layout_marginLeft="10dp"
android:background="@color/dark_blue">
<TextView android:id="@+id/selectedProtocolsTextView"
android:layout_width="fill_parent"
android:text="@string/selectedProtocols" android:paddingLeft="10dp"
android:textColor="@color/dark_blue_text" android:background="@color/mid_blue"
android:textSize="25dp" android:textStyle="bold" android:layout_height="wrap_content"></TextView>
<TextView android:id="@+id/protocolsTextView"
android:layout_width="match_parent" android:layout_height="wrap_content"
android:text="@string/Protocols" android:textColor="@color/black"
android:background="@color/light_grey" android:paddingLeft="10dp"
android:textSize="25dp" android:layout_weight="0.91"></TextView>
<LinearLayout android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.08"
android:background="@color/light_blue"
android:gravity="center_vertical"
android:paddingLeft="450dp"
android:paddingRight="20dp"
android:layout_marginTop="10dp">
<Button android:id="@+id/acceptButton"
  android:layout_width="wrap_content"
      android:text="@string/acceptButtonTitle"
      android:textColor="@color/black"
      android:background="@color/blue_button"
  android:textSize="20dp"
  android:textStyle="bold"
      android:layout_weight="1"
      android:layout_height="50dp"/>
      <Button android:id="@+id/cancelButton"
  android:layout_width="wrap_content"
      android:text="@string/cancelButtonTitle"
      android:background="@color/blue_button"
      android:textColor="@color/black"
  android:textSize="20dp"
  android:textStyle="bold"
      android:layout_weight="1"
      android:layout_height="50dp"
      android:layout_marginLeft="30dp"/>
</LinearLayout>

</LinearLayout></LinearLayout>

调试易

如何实现在expandableListView中的CheckBox，点击CheckBox后获得所点击项

解决方案 »