如何处理孩子的点击事件Expandablelistview在Android的？ [英] How to handle child click event in Expandablelistview in Android?

问题描述

我米创造了Android的可扩展列表视图。我有添加三个TextView的相对布局和水平线性布局两个按钮意味着这两个按钮一行添加，所以我怎么能火点击这两个按钮的事件。而我想打电话给在扩展列表按钮单击另一个活动view.But我没有找到任何想法如何点击孩子 ExpandableListView 。有人可以帮助我please.Here是我的XML文件。

I m creating expandable list view in Android. I have add three textview in relative layout and two buttons in horizontal linear layout means this two buttons are added in one row , so how can i fire click event on those two buttons .And i want to call another activity on button click in expandable list view.But i did not find any idea how to click on child in ExpandableListView. can someone help me please.Here is my xml file.

下面是我的XML文件。

Here is my xml file.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@android:color/white"
    android:padding="2dp" >

    <TextView
        android:id="@+id/TextView_Projectdetails"
        android:layout_width="match_parent"
        android:layout_height="25dp"
        android:background="@drawable/button_shape"
        android:paddingLeft="10sp"
        android:textColor="@android:color/black" />

    <TextView
        android:id="@+id/textOne"
        android:layout_width="match_parent"
        android:layout_height="25dp"
        android:layout_below="@+id/TextView_Projectdetails"
        android:layout_marginTop="2dp"
        android:background="@drawable/button_shape"
        android:paddingLeft="10sp"
        android:textColor="@android:color/black" >
    </TextView>

    <TextView
        android:id="@+id/textTwo"
        android:layout_width="match_parent"
        android:layout_height="25dp"
        android:layout_below="@+id/textOne"
        android:layout_marginTop="2dp"
        android:background="@drawable/button_shape"
        android:paddingLeft="10sp"
        android:textColor="@android:color/black" >
    </TextView>

    <LinearLayout
        android:id="@+id/linearlAYOUT"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textTwo"
        android:layout_marginTop="5dp"
        android:orientation="horizontal" >

        <Button
            android:id="@+id/button_EditedTask"
            android:layout_width="0dp"
            android:layout_height="27dp"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:background="@drawable/button_shape_two"
            android:gravity="center"
            android:paddingBottom="3sp"
            android:paddingTop="3sp"
            android:text="ASSIGN TASK"
            android:focusable="false"      
            android:textColor="@android:color/white"
            android:textSize="12sp"
            android:textStyle="normal" />

        <Button
            android:id="@+id/buttonViewTask"
            android:layout_width="0dp"
            android:layout_height="27dp"
            android:layout_gravity="center_vertical|center_horizontal"
            android:layout_marginLeft="3dp"
            android:layout_weight="1"
            android:background="@drawable/button_shape_one"
            android:gravity="center"
            android:paddingBottom="3sp"
            android:paddingTop="3sp"
            android:text="VIEW TASK"
            android:focusable="false"      
            android:textColor="@android:color/white"
            android:textSize="12sp"
            android:textStyle="normal" />
    </LinearLayout>

</RelativeLayout>

List_Group xml文件 -

List_Group xml file -

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:padding="8dp" 
    android:background="#000000">


    <TextView
        android:id="@+id/lblListHeader"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:paddingLeft="?android:attr/expandableListPreferredItemPaddingLeft"
        android:textSize="17dp"
        android:textColor="#f9f93d" />

</LinearLayout>

这是我的 ExpandableListAdapter 类 -

public class ExpandableListAdapter extends BaseExpandableListAdapter {

    private Context _context;
    private List<String> _listDataHeader; // header titles
    // child data in format of header title, child title
    private HashMap<String, List<String>> _listDataChild;
    Context context;

    public ExpandableListAdapter(Context context, List<String> listDataHeader,
            HashMap<String, List<String>> listChildData) {
        this._context = context;
        this._listDataHeader = listDataHeader;
        this._listDataChild = listChildData;
    }

    public ExpandableListAdapter
    (My_Project my_Project, List createGroupList,
            int listGroup, String[] strings, int[] is, List createChildList,
            int childItem, String[] strings2, int[] is2)
    {
        // TODO Auto-generated constructor stub
    }

    @Override
    public Object getChild(int groupPosition, int childPosition) 
    {
        //this.get(groupPosition).getChildren().get(childPosition);
        String strchildPosition = this._listDataChild.get(this._listDataHeader.get(groupPosition)).get(childPosition);
        System.out.println("Child Position  =" + strchildPosition);
        return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                .get(childPosition);
    }

    @Override
    public long getChildId(int groupPosition, int childPosition) {
        return childPosition;
    }

    @Override
    public View getChildView(int groupPosition, final int childPosition,
            boolean isLastChild, View convertView, ViewGroup parent) {

        final String childText = (String) getChild(groupPosition, childPosition);

        if (convertView == null) {
            LayoutInflater infalInflater = (LayoutInflater) this._context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = infalInflater.inflate(R.layout.child_item, null);
        }

        TextView txtListChild = (TextView) convertView.findViewById(R.id.TextView_Projectdetails);
        TextView txtOneListChild = (TextView)convertView.findViewById(R.id.textOne);
        TextView txtTwoListChild = (TextView)convertView.findViewById(R.id.textTwo);



        txtListChild.setText(childText);
        txtOneListChild.setText(childText);
        txtTwoListChild.setText(childText);




        Button btnAssgnTask = (Button)convertView.findViewById(R.id.button_EditedTask);
        btnAssgnTask.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                //Intent i=new Intent(context,Assign_Task.class);
                //StartElementListener()

            }
        });


        Button btnViewTask = (Button)convertView.findViewById(R.id.buttonViewTask);

        return convertView;
    }

    @Override
    public int getChildrenCount(int groupPosition) {
        return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                .size();
    }

    @Override
    public Object getGroup(int groupPosition) {
        return this._listDataHeader.get(groupPosition);
    }

    @Override
    public int getGroupCount() {
        return this._listDataHeader.size();
    }

    @Override
    public long getGroupId(int groupPosition) {
        return groupPosition;
    }

    @Override
    public View getGroupView(int groupPosition, boolean isExpanded,
            View convertView, ViewGroup parent) {
        String headerTitle = (String) getGroup(groupPosition);
        if (convertView == null) {
            LayoutInflater infalInflater = (LayoutInflater) this._context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = infalInflater.inflate(R.layout.list_group, null);
        }

        TextView lblListHeader = (TextView) convertView
                .findViewById(R.id.lblListHeader);
        lblListHeader.setTypeface(null, Typeface.BOLD);
        lblListHeader.setText(headerTitle);

        return convertView;
    }

    @Override
    public boolean hasStableIds() {
        return false;
    }

    @Override
    public boolean isChildSelectable(int groupPosition, int childPosition) {
        return true;
    }

}

下面是我的活动code -

Here is my Activity code -

public class My_Project extends ExpandableListActivity 
{


    expListView = (ExpandableListView) findViewById(android.R.id.list);

        expListView.setOnGroupClickListener(new OnGroupClickListener()
        {
            @Override
                public boolean onGroupClick(ExpandableListView parent, View v,
                        int groupPosition, long id) 
                {
                    return false;
                }
            });


            expListView.setOnGroupExpandListener(new OnGroupExpandListener() {

                @Override
                public void onGroupExpand(int groupPosition) {
                    Toast.makeText(getApplicationContext(),
                            dtrProjectNAmeSize.length + " Expanded",
                            Toast.LENGTH_SHORT).show();
                }
            });


            expListView.setOnGroupCollapseListener(new OnGroupCollapseListener() {

                @Override
                public void onGroupCollapse(int groupPosition) {
                    Toast.makeText(getApplicationContext(),
                            dtrProjectNAmeSize.length + " Collapsed",
                            Toast.LENGTH_SHORT).show();
                }
            });


            expListView.setOnChildClickListener(new OnChildClickListener() {

                @Override
                public boolean onChildClick(ExpandableListView parent, View v,
                        int groupPosition, int childPosition, long id) {
                    // TODO Auto-generated method stub

                     int cp = (int) mAdapter.getChildId(groupPosition, childPosition);
                     if(cp == 3)
                     {
                         switch (cp)
                         {
                                case 3:



                                break;

                         }
                     }


                    return false;

                }
            });



            mAdapter = new SimpleExpandableListAdapter(
                        this,
                        groupData,
                        R.layout.list_group,
                        new String[] { Project_Name },
                        new int[] {R.id.lblListHeader },
                        childData,
                        R.layout.child_item,
                        new String[] { Project_Date_Created , Project_End_Date , Project_Is_Active},
                        new int[] { R.id.TextView_Projectdetails , R.id.textOne , R.id.textTwo }
                        );

                expListView.setAdapter(mAdapter);  

    }



    }

在先进的感谢。

推荐答案

您可以设定扩展列表视图中享有一定的setOnChildClickListener然后根据这则用于创建可扩展的ListView数组列表的价值，你可以去其他活动

You can set setOnChildClickListener of chid of the expandable listview then can you go to the other activity according to the value of the array list that are use for create expandable listview.

            menuExpandableListView
                    .setOnChildClickListener(new ExpandableListView.OnChildClickListener() {

                        @Override
                        public boolean onChildClick(
                                ExpandableListView parent, View v,
                                int groupPosition, int childPosition,
                                long id) {
                            GoCategory(mainMenusList.get(groupPosition)
                                    .getPagesList().get(childPosition));
                            return false;
                        }
                    });

或者你也可以做到这一点。

Or you can do this

@Override
public View getChildView(final int groupPosition, final int childPosition,
        boolean isLastChild, View convertView, ViewGroup parent) {
    Page page =(Page) getChild(groupPosition, childPosition);
    convertView = inflater.inflate(R.layout.child_list_layout, null);
    Button button1=(Button)convertView.findViewById(R.id.button1);
     button1.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {

                Your code here....


        }
    });

    return convertView;
}

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