ExpandableListView子单击侦听器未触发

Question

不知道为什么我的onChildClick没有触发.一切都很完美,除了当其中一个儿童用品被敲击时,绝对没有任何反应.否则,可扩展组按预期工作.

我已经回顾了我对子xml文件中复选框的使用.当我删除此复选框时,onChildClick将按预期触发.但我需要此复选框来显示此活动的功能.我做错了什么？谢谢!

public class MySettings extends Activity {

    private ExpandListAdapter expAdapter;
    private ArrayList<ExpandListGroup> expListItems;
    private ExpandableListView expandableList;
    private String client;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my_settings);

        expandableList = (ExpandableListView) findViewById(R.id.expandable_list);
        expListItems = SetStandardGroups();  //works fine - can show code if needed
        expAdapter = new ExpandListAdapter(MySettings.this, expListItems);
        expandableList.setAdapter(expAdapter);

        expandableList.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {

            @Override
            public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {
                //Nothing here ever fires
                System.err.println("child clicked");
                Toast.makeText(getApplicationContext(), "child clicked", Toast.LENGTH_SHORT).show();
                return true;
            }
        });

    }

这是xml文件:

activity_my_settings.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:background="@drawable/background" >

    <ImageView
        android:id="@+id/logo"
        android:layout_marginTop="5dip"
        android:layout_alignParentTop="true"
        android:layout_width="wrap_content"
        android:layout_height="70dp"
        android:layout_gravity="left"
        android:contentDescription="@string/blank"
        android:src="@raw/logo" >
    </ImageView>

    <TextView
        android:id="@+id/my_settings"
        android:textColor="#000000"
        android:layout_below="@id/logo"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:gravity="center"
        android:text="@string/my_settings"
        android:textSize="30sp"
        android:textStyle="bold" />

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_below="@id/my_settings" >

        <ExpandableListView
            android:id="@+id/expandable_list"
            android:scrollingCache="false"
            android:layout_marginTop="20dip"
            android:layout_height="wrap_content"
            android:layout_width="match_parent" />

    </LinearLayout>

</RelativeLayout>

expandlist_group_item.xml

<?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="55dip"
    android:background="#FF7C7C7C" >

    <TextView
        android:id="@+id/group_header"
        android:layout_marginLeft="40dp"
        android:layout_width="fill_parent"
        android:layout_height="40dp"
        android:gravity="center_vertical"
        android:textColor="#000000"
        android:textSize="22sp" />

</LinearLayout>

expandlist_child_item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="55dip"
    android:orientation="horizontal" >

    <CheckBox
        android:id="@+id/check_box"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/expand_list_item"
        android:paddingLeft="10dp"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:textSize="@dimen/smart_finder_settings_font_size"
        android:textColor="#FFFFFF" />

</LinearLayout>

Answer 1

请务必覆盖可扩展列表适配器的isChildSelectable方法并返回true,如下所示:

public class MyExpandableListAdapter extends BaseExpandableListAdapter {
...

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

Answer 2

我知道了.我所要做的就是添加

android:focusable="false"

在我的expandlist_child_item.xml文件的CheckBox部分中.

我希望这有助于某人.

Answer 3

看起来还不错,仍然:

1. 检查您是否未将list侦听器设置为listview的任何父视图.

2. 检查isChildSelectable()适配器返回true.也areAllItemsEnabled()应该返回true.