【发布时间】：2014-06-07 17:57:32
【问题描述】：
我一直在尝试将标题/部分添加到我的导航抽屉，但不幸的是没有成功。 我在 StackOverFlow 中查看了这些问题：
Android Navigation Drawer ListView Headers
Navigation Drawer with Headers/Sections
这就是我想要做的。 我想制作一个具有（每行中的图标和文本）的导航抽屉，并且在一些标题之间具有。（例如在第 2 项和第 6 项中）。 如果您告诉我在我的代码中添加/更改什么以使其成为可能，我将不胜感激。（但更详细的是“覆盖函数 X 和覆盖函数 Y”，因为我是初学者，我很难尝试将其实现到我的代码中→我今天尝试了 6 次，但它崩溃了）。
主活动：
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.content.res.Configuration;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SectionIndexer;
public class MainActivity extends Activity {
public String[] drawerListViewItems;
public ListView drawerListView;
public ActionBarDrawerToggle actionBarDrawerToggle;
public DrawerLayout drawerLayout;
TypedArray menuIcons;
// nav drawer title
private CharSequence mDrawerTitle;
private CharSequence mTitle;
private List<RowItem> rowItems;
private CustomAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// organize the title of the navigation drawer
mTitle = mDrawerTitle = getTitle();
// get list items from strings.xml
drawerListViewItems = getResources().getStringArray(
R.array.Navigation_Drawer);
// get list icons from the strings
menuIcons = getResources().obtainTypedArray(R.array.icons);
// get ListView defined in activity_main.xml
drawerListView = (ListView) findViewById(R.id.left_drawer);
// Set the adapter for the list view
drawerListView.setAdapter(new ArrayAdapter<String>(this,
R.layout.drawer_listview_item, drawerListViewItems));
// row items array list "RowItem" it's a class
rowItems = new ArrayList<RowItem>();
// adds the icons to each item sync
for (int i = 0; i < drawerListViewItems.length; i++) {
RowItem items = new RowItem(drawerListViewItems[i],
menuIcons.getResourceId(i, -1));
rowItems.add(items);
}
drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
/*
* LayoutInflater inflater = getLayoutInflater(); ViewGroup mTop =
* (ViewGroup)inflater.inflate(R.layout.flats, drawerListView, false);
* drawerListView.addHeaderView(mTop);
*/
actionBarDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */
drawerLayout, /* DrawerLayout object from line 31 */
R.drawable.ic_drawer, /* nav drawer icon to replace 'Up' caret */
R.string.drawer_open, /* "open drawer" description */
R.string.drawer_close /* "close drawer" description */
) {
public void onDrawerClosed(View view) {
getActionBar().setTitle(mTitle);
// calling onPrepareOptionsMenu() to show action bar icons
invalidateOptionsMenu();
}
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(mDrawerTitle);
// calling onPrepareOptionsMenu() to hide action bar icons
invalidateOptionsMenu();
}
};
menuIcons.recycle();
adapter = new CustomAdapter(getApplicationContext(), rowItems);
drawerListView.setAdapter(adapter);
drawerLayout.setDrawerListener(actionBarDrawerToggle);
getActionBar().setDisplayHomeAsUpEnabled(true);
drawerListView.setOnItemClickListener(new DrawerItemClickListener());
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
actionBarDrawerToggle.onConfigurationChanged(newConfig);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// call ActionBarDrawerToggle.onOptionsItemSelected(), if it returns
// true
// then it has handled the app icon touch event
if (actionBarDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
actionBarDrawerToggle.syncState();
}
private class DrawerItemClickListener implements
ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView parent, View view, int position,
long id) {
SelectItem(position);
}
}
public void SelectItem(int position) {
// TODO Auto-generated method stub
switch (position) {
case 0:
setTitle(drawerListViewItems[position]);
drawerLayout.closeDrawer(drawerListView);
break;
case 1:
setTitle(drawerListViewItems[position]);
drawerLayout.closeDrawer(drawerListView);
break;
case 2:
setTitle(drawerListViewItems[position]);
drawerLayout.closeDrawer(drawerListView);
break;
case 3:
setTitle(drawerListViewItems[position]);
drawerLayout.closeDrawer(drawerListView);
break;
case 4:
setTitle(drawerListViewItems[position]);
drawerLayout.closeDrawer(drawerListView);
break;
case 5:
setTitle(drawerListViewItems[position]);
drawerLayout.closeDrawer(drawerListView);
break;
case 6:
setTitle(drawerListViewItems[position]);
drawerLayout.closeDrawer(drawerListView);
break;
case 7:
setTitle(drawerListViewItems[position]);
drawerLayout.closeDrawer(drawerListView);
break;
case 8:
setTitle(drawerListViewItems[position]);
drawerLayout.closeDrawer(drawerListView);
break;
default:
break;
}
}
@Override
public void setTitle(CharSequence title) {
mTitle = title;
getActionBar().setTitle(mTitle);
}
}
自定义适配器：
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
public class CustomAdapter extends BaseAdapter {
Context context;
List<RowItem> rowItem;
CustomAdapter(Context context, List<RowItem> rowItem) {
this.context = context;
this.rowItem = rowItem;
}
private class ViewHolder {
ImageView icon;
TextView title;
}
@Override
public int getViewTypeCount() {
return super.getViewTypeCount();
}
@Override
public int getItemViewType(int position) {
return super.getItemViewType(position);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
LayoutInflater mInflater = (LayoutInflater) context
.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
convertView = mInflater.inflate(R.layout.list_item, null);
holder = new ViewHolder();
holder.icon = (ImageView) convertView.findViewById(R.id.icon);
holder.title = (TextView) convertView.findViewById(R.id.title);
RowItem row_pos = rowItem.get(position);
// setting the image resource and title
holder.icon.setImageResource(row_pos.getIcon());
holder.title.setText(row_pos.getTitle());
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
return convertView;
}
@Override
public int getCount() {
return rowItem.size();
}
@Override
public Object getItem(int position) {
return rowItem.get(position);
}
@Override
public long getItemId(int position) {
return rowItem.indexOf(getItem(position));
}
}
行项目：
public class RowItem {
private String title;
private int icon;
String ItemName;
public RowItem(String title, int icon) {
this.title = title;
this.icon = icon;
}
public String getItemName() {
return ItemName;
}
public void setItemName(String itemName) {
ItemName = itemName;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public int getIcon() {
return icon;
}
public void setIcon(int icon) {
this.icon = icon;
}
}
drawerlistviewitem.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="48dp"
android:padding="2dp" >
<ImageView
android:id="@+id/icon"
android:layout_width="50dp"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="12dp"
android:layout_marginRight="12dp"
android:contentDescription="desc"
android:src="@drawable/firstlogo" />
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginTop="10dp"
android:layout_toRightOf="@id/icon"
android:gravity="center_vertical"
android:text="abccc"
android:textColor="#000000"
android:textSize="20sp" />
</RelativeLayout>
【问题讨论】：
标签： android android-layout navigation