如何在其他列表視圖中顯示其各個組項目的子項目

Question

我想將可擴展列表視圖中各個組項目的子項目顯示爲單獨的列表視圖。

我也做了以下

package com.example.demo_data1; 

import java.util.ArrayList; 

import android.annotation.SuppressLint; 
import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.support.v4.app.ActionBarDrawerToggle; 
import android.support.v4.widget.DrawerLayout; 
import android.support.v4.widget.DrawerLayout.DrawerListener; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.widget.ExpandableListView; 
import android.widget.ExpandableListView.OnChildClickListener; 
import android.widget.Toast; 

@SuppressLint("NewApi") 
public class DrawerLayoutTest extends Activity implements OnChildClickListener { 

private DrawerLayout drawer; 
private ExpandableListView drawerList; 
private ActionBarDrawerToggle actionBarDrawerToggle; 

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

    setGroupData(); 
    setChildGroupData(); 

    initDrawer(); 
} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.drawer_layout_test, menu); 
    return true; 
} 

private void initDrawer() { 
    drawer = (DrawerLayout) findViewById(R.id.drawer_layout); 

    drawerList = (ExpandableListView) findViewById(R.id.left_drawer); 

    drawerList.setAdapter(new NewAdapter(this, groupItem, childItem)); 

    drawerList.setOnChildClickListener(this); 

    // actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawer, 
    // R.drawable.ic_drawer, R.string.open_drawer, 
    // R.string.close_drawer) { 
    // public void onDrawerClosed(View view) { 
    // getActionBar().setSubtitle("open"); 
    // } 
    // 
    // /** Called when a drawer has settled in a completely open state. */ 
    // public void onDrawerOpened(View drawerView) { 
    // getActionBar().setSubtitle("close"); 
    // } 
    // 
    // }; 
    // 
    // drawer.setDrawerListener(actionBarDrawerToggle); 

} 

public void setGroupData() { 
    groupItem.add("TECHNOLOGY"); 
    groupItem.add("MOBILE"); 
    groupItem.add("MANUFACTURER"); 
    groupItem.add("EXTRAS"); 
} 

ArrayList<String> groupItem = new ArrayList<String>(); 
ArrayList<Object> childItem = new ArrayList<Object>(); 

public void setChildGroupData() { 
    /** 
    * Add Data For TecthNology 
    */ 
    ArrayList<String> child = new ArrayList<String>(); 
    child.add("Java"); 
    child.add("Drupal"); 
    child.add(".Net Framework"); 
    child.add("PHP"); 
    childItem.add(child); 

    /** 
    * Add Data For Mobile 
    */ 
    child = new ArrayList<String>(); 
    child.add("Android"); 
    child.add("Window Mobile"); 
    child.add("iPHone"); 
    child.add("Blackberry"); 
    childItem.add(child); 
    /** 
    * Add Data For Manufacture 
    */ 
    child = new ArrayList<String>(); 
    child.add("HTC"); 
    child.add("Apple"); 
    child.add("Samsung"); 
    child.add("Nokia"); 
    childItem.add(child); 
    /** 
    * Add Data For Extras 
    */ 
    child = new ArrayList<String>(); 
    child.add("Contact Us"); 
    child.add("About Us"); 
    child.add("Location"); 
    child.add("Root Cause"); 
    childItem.add(child); 
} 


public boolean onChildClick(ExpandableListView parent, View v, 
     int groupPosition, int childPosition, long id) { 
    switch (groupPosition) 
    { 
    case 0: 
      switch (childPosition) 
      { 
      case 0: 
       MainActivity(); 
       break; 
      case 1: 
       // 
      } 

    } 
    return false; 
} 

private void MainActivity(){ 
Intent myIntent = new Intent(this, MainActivity.class); 
startActivity(myIntent); 
} 
} 

現在，這裏在上面的代碼中的子項越來越顯示在同一個列表視圖組項目下，而不是我想旁邊顯示組在不同的列表視圖中的子項項目列表視圖。

請幫我一下，堅持了很久。

任何有關這方面的幫助將不勝感激。

Answer 1

使用這個代碼

activity_main.xml中

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:baselineAligned="false" 
android:orientation="vertical" 
tools:context="com.example.listtest.MainActivity" > 




<android.support.v4.widget.DrawerLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/drawer_layout" 
    android:layout_width="match_parent" 
    android:layout_height="0dp" 
    android:layout_weight="1" > 

    <!-- Drawer Content --> 

    <FrameLayout 
     android:id="@+id/content_frame" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent"> 


    </FrameLayout> 

    <!-- The navigation menu --> 

    <ListView 
     android:id="@+id/left_drawer_child" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:choiceMode="singleChoice" 
       android:layout_gravity="start" 
     android:divider="@android:color/transparent" 
     android:dividerHeight="0dp" 
     android:background="@android:color/white" /> 
</android.support.v4.widget.DrawerLayout> 

MainActivity.java

public class MainActivity extends FragmentActivity { 
private DrawerLayout mDrawerLayout; 
Fragment fragment = null; 
ListView mainlist; 
ArrayList<String> formain = new ArrayList<String>(); 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    mainlist = (ListView) findViewById(R.id.left_drawer_child); 
    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); 
    mDrawerLayout.setScrimColor(getResources().getColor(android.R.color.transparent)); 
    mDrawerLayout.setDrawerListener(mDrawerListener); 
// childlist = (ListView) findViewById(R.id.listView2); 
    formain.add("TECHNOLOGY"); 
    formain.add("MOBILE"); 
    formain.add("MANUFACTURER"); 
    formain.add("EXTRAS"); 
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,formain); 
    mainlist.setAdapter(adapter); 
    mDrawerLayout.openDrawer(mainlist); 
    mainlist.setOnItemClickListener(new OnItemClickListener() { 

     @Override 
     public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { 
      // TODO Auto-generated method stub 
      String getGroup = formain.get(arg2); 
      if (getGroup == "TECHNOLOGY"){ 
       fragment = new TechnologyFragment(); 
        getSupportFragmentManager().beginTransaction().replace(R.id.content_frame, fragment).commit(); 
       mDrawerLayout.closeDrawer(mainlist); 
      } 
      if (getGroup == "MOBILE"){ 
      //fragment for mobile 
      } 
      if (getGroup == "MANUFACTURER"){ 
       //fragment for manufacturer 
      } 
      if (getGroup == "EXTRAS"){ 
      //fragment for extras 
      } 


     } 
    }); 

} 
private DrawerListener mDrawerListener = new DrawerListener() { 

    @Override 
    public void onDrawerStateChanged(int status) { 

    } 

    @Override 
    public void onDrawerSlide(View view, float slideArg) { 

    } 

    @Override 
    public void onDrawerOpened(View view) { 
    } 

    @Override 
    public void onDrawerClosed(View view) { 
    } 
}; 
} 

TECHN ology_fragment.xml

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

<ListView 
    android:id="@+id/listView1" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" > 
</ListView> 

</LinearLayout> 

TechnologyFragment.java

public class TechnologyFragment extends Fragment { 

ListView techlist; 
ArrayList<String> forchild = new ArrayList<String>(); 
@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 
    View rootView = inflater.inflate(R.layout.technology_fragment, null); 
    techlist = (ListView) rootView.findViewById(R.id.listView1); 
    forchild.add("Java"); 
    forchild.add("Drupal"); 
    forchild.add(".Net Framework"); 
     forchild.add("PHP"); 
     ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1,forchild); 
     techlist.setAdapter(adapter); 

    return rootView; 
} 

} 

Answer 2

而不是使用ExpandableListView使用普通ListView和片段。

顯示片段1中的父列表並單擊父項1中的項目將顯示在列表中具有子項的片段2。