Question

我尝试了几种不同的组合（以下评论是此片段）。调试无法识别正在发生的点击。该项目突出显示，但没有任何反应。我尝试过膨胀自定义row.xml文件并使用行布局文件中的视图。没有例外，没有更多的想法。谢谢你的期待。

另外，我意识到onCreateContextMenu方法有点轻松。我只是想把东西弹出来，然后我会处理细节！

主要活动

public class BrowseActivity extends ExpandableListActivity {

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.browse);

    final ExpandableListView browseView = (ExpandableListView) findViewById(android.R.id.list);

    DbHelper dbh = new DbHelper(BrowseActivity.this);
    SQLiteDatabase db = dbh.getWritableDatabase();
    SQLiteQueryBuilder queryBuilder = new SQLiteQueryBuilder();
    queryBuilder.setTables(Items.ITEMS_TABLE_NAME);

    Cursor mCursor = queryBuilder.query(db, new String[] { Items.ITEMS_ID,
            Items.ITEMS_ITEM, Items.ITEMS_DESC }, null, null, null, null,
            Items.DEFAULT_SORT_ORDER);

    CursorTreeAdapter mAdapter = new MyExpandabaleListAdapter(this,
            mCursor, R.layout.row, R.layout.exprow, new String[] {
                    Items.ITEMS_ITEM, Items.ITEMS_DESC }, new int[] {
                    R.id.txtItem, R.id.dscItemTwo }, new String[] {
                    Items.ITEMS_DESC, Items.ITEMS_MANU }, new int[] {
                    R.id.dscItem, R.id.manuItem });

    browseView.setAdapter(mAdapter);


        registerForContextMenu(getExpandableListView());

}

public class MyExpandabaleListAdapter extends SimpleCursorTreeAdapter {

    public MyExpandabaleListAdapter(Context context, Cursor c,
            int groupLayout, int childLayout, String[] groupFrom,
            int[] groupTo, String[] childrenFrom, int[] childrenTo) {

        super(context, c, groupLayout, groupFrom, groupTo, childLayout,
                childrenFrom, childrenTo);

    }

    @Override
    protected Cursor getChildrenCursor(Cursor groupCursor) {...}

}

public void OnCreateContextMenu(ContextMenu menu, View v,
        ContextMenuInfo menuInfo) {

    super.onCreateContextMenu(menu, v, menuInfo);

     menu.add(0, 0, 0, "Add");

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    super.onCreateOptionsMenu(menu);
    menu.add("Add Item").setIntent(new Intent(this, AddItemActivity.class));

    return super.onCreateOptionsMenu(menu);
}

@Override
public boolean onContextItemSelected(MenuItem item) {

    return false;
}

}

浏览布局 这是保存ELV的布局。

<LinearLayout
 xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent" android:orientation="vertical"
 android:id="@+id/expandLinLayout"
 >
 <ExpandableListView 
 android:id = "@android:id/list" 
 android:layout_height="fill_parent" 
 android:layout_width="fill_parent"
 android:groupIndicator="@drawable/my_group_statelist"  
 >  
 </ExpandableListView>

</LinearLayout>

行布局 这是折叠的布局。

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/TableLayout1" 
android:layout_width="fill_parent" 
android:layout_height="fill_parent"
>
<TextView 
android:layout_gravity="center_vertical|right" 
android:id="@+id/txtItem" 
android:text="Item" 
android:layout_height="wrap_content" 
android:layout_width="fill_parent" 
android:textSize="15dip"

></TextView>


 <TextView 
android:layout_gravity="center_vertical|right" 
android:id="@+id/dscItemTwo" 
android:text="Desciption" 
android:layout_height="wrap_content" 
android:layout_width="fill_parent" 
android:textStyle="italic"
android:textColor="#666666"

></TextView>

展开布局 这是展开式布局。

<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"

>
<TextView 
android:layout_gravity="right" 
android:layout_height="wrap_content" 
android:layout_width="wrap_content" 
android:id="@+id/manuItem" 
android:textColor="#994020" 
android:text="Manufacturer"
android:layout_marginRight="10dip"
></TextView>

<TextView 
android:text="Description"
android:id = "@+id/dscItem"
android:layout_width = "wrap_content" 
android:layout_height="wrap_content"
android:layout_gravity="right"
android:layout_marginRight="10dip"
 android:textColor="#994020" 
></TextView>

</LinearLayout>

Answer 1

Background reading

在你的registerForContextMenu（）中你不必传入声明的列表：

 registerForContextMenu(getListView());

http://developer.android.com/reference/android/app/ListActivity.html#getListView()

或在你的情况下：

http://www.androidjavadoc.com/1.0_r1_src/android/app/ExpandableListActivity.html#getExpandableListView()

StackOverflow参考：How do you implement context menu in a ListActivity on Android?

ExpandableListView OnLongClick无法被侦听器识别

1 个答案: